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JPA Designer User Manual

1. te EOL insert view Uptions Help off Project Manage nd S rs en led condensation risk emarwa d Layer C amp ZRH Ali AEn petes Thermal Va peg es in Bu uj ET pp Outside surface resistance i i m 4 Blockwork medium K e e Fux 5 Plaster ightwebh E Fej ir X 6 Inside surface resistance JPA Designer Condensation Risk Analysis Version 6 02a1 and above ISSUE MAY 2015 JPA TL Ltd 8l Newcastle Business Village E 3 33 Bellingham Drive qU S NU North Tyneside Ind Est dh he Newcastle upon Tyne NEI2 9SZ Bs go United Kingdom L E salesQ techlit co uk Eros W www techlit co uk Y Sy 2 MT LI qa 4 a Wi 8 yee b P p Wats th af gt EP 24 05 I OR 9 D P Ne Ws 1 v SU T Ww on 5 wy 25 t m Contents 1 JPA Designer basic 1 1 Introducing JPA Designe 1 2 Getting started les 1 3 Managing projects and calculation MEM Working with material eee No W UI NIO 3 1 The problem of interstitial condensation EE 40 40 41 46 49 JPA Designer basics 1 1 Introducing JPA Designer Welcome to JPA Designer the design and calculation program from JPA TL Ltd This manual describes how to use the JPA Designer to carry out R value calculations and interstitial condensa
2. General Logo amp Signature Email Other Printer margins mrm Emp named address Top page 1 90 Left 15 Name First company name Top page Z Right s Address Bright Street Bottom Happy Town Options AB 2CD v Print Logo amp Address Print in colour ial Print U value watermark Print S amp P watermark Fax Print U value disclaimer Print SAP disclaimer ema Figure 1 5 The Options dialogue General tab 1 In the Project Manager window select Options from the menu bar The Options dialogue opens 2 In the General tab enter your company name address phone and email details in the Company name amp address section see Figure 1 5 3 Tick the Print Logo amp Address box 4 Enter the wording of any disclaimers which you want to appear at the bottom of U value and SAP reports in the U value disclaimer and SAP boxes 5 If you have entered wording for the U value and or SAP disclaimers tick the Print U value disclaimer and or the Print SAP disclaimer boxes 6 Click the Logo amp Signature tab 7 In the Logo position section enter the location of the Top and Left sides of the logo relative to the page and enter the Width of the logo All dimensions should be in millimetres t will probably take some experimentation to get the logo position and size correct 8 Enter the name of the Logo file including the bmp extension then click OK to close the dialogue 9 Copy or move the logo
3. We recommend you have a regular back up schedule for your data CHAPTER 1 JPA DESIGNER BASICS 13 Opening projects To open an existing project 1 From the menu bar select File Open project The Open dialogue opens 2 Select the file you want to work with then click Open The project opens in the Project Manager window Adding calculations to a project You can add new calculations to a project in the Project Manager window To add a new R value calculation or condensation risk assessment to a project 1 From the menu bar select Insert gt U value calculation The Description dialogue opens Figure 1 10 2 Type a name for the calculation in the Description dialogue e g warm roof and click OK The new calculation is added to the project When naming a calculation avoid using the Windows restricted characters otherwise you will have problems creating PDFs of calculation reports see for a more detailed explanation Description Enter a description for the dwelling Mid terrace type 1 Figure 1 10 The Description dialogue Using R value calculation templates JPA Designer offers a range of standard R value calculations which you can use to speed up the calculation process and minimise repetitive work We refer these standard calcu lations as R value templates Fach template contains the same information as a normal R value calculation including element definitions and layers Yo
4. lt gt otherwise you will have problems creating PDFs of calculation reports see for a more detailed explanation Changing the name of the calculation will not affect the calculation results Deleting calculations Calculations can be deleted from JPA Designer projects WARNING there is no way of recovering a deleted calculation To delete a calculation 1 In the Project Manager window click once on the calculation to select it 2 From the menu bar select Edit Delete selected item JPA Designer asks you to confirm the deletion 3 Click Yes to delete the calculation or No to abandon the deletion If you click Yes the calculation is removed from the project CHAPTER 1 JPA DESIGNER BASICS 18 Merging projects Using the Merge projects function you can copy all the calculations in an existing project into the currently open project This can be useful if you have a number of standard calculations stored in different projects which you need to bring together for a particular job Merging does not change the project you are copying from To merge calculations from one project into another 1 In Project Manager open or create the project you want to receive the calculations 2 From the menu bar select File Merge a project from disk into this Project The Open dialogue appears 3 Select the file which contains the calculations and click Open JPA Designer adds the calculations to the current project and lists them in
5. and font size of the default text Click OK The Print preview window opens CHAPTER 2 R VALUE CALCULATIONS 34 Sections To Print x Sections to print 1I50 moisture table Thermal mass Tapered insulation Options Print TIMSA lago Print watermark text Text DRAFT Angle degrees 45 Font size paints el Identity Figure 2 8 The Sections To Print dialogue Page 1 of 20 Figure 2 9 Print preview controls CHAPTER 2 R VALUE CALCULATIONS 35 5 Use the buttons on the tool bar to view successive pages of the report then click the Print button to print the pages Figure 2 9 To create a PDF report 1 On the File click Create PDF A dialogue asks if you want to open the PDF when it is created 2 Select Yes or No The Sections To Print dialogue opens Figure 2 8 3 If you have several user identities see section 1 2 select the one you want to use in the Identities list The TIMSA logo option is not relevant for Australia and New Zealand 4 If you want to include a watermark over the calculation tick Print watermark text You can also modify the wording angle and font size of the default text 5 Click OK The Print preview window opens 6 Use the buttons on the tool bar to view successive pages of the report then click the Print button to print the pages Figure 2 9 The program will then create a PDF file of the calculation The name of the PDF file will include t
6. directional heat transfer settings Heat in and heat out resistances Where you have been given separate heat in and heat out resistances for the material Tick 2 directional heat flow product see Figure 2 5 2 Enter the Thermal resistance In 3 Enter the Thermal resistance Out A Set the Type of layer usually to Composite for a solid and Clear cavity for an airspace Adjusting resistances for temperature For some insulation materials the measured thermal resistance can be adjusted according to the difference between the mean temperature across the R value calculation and the temperature at which the thermal resistance was measured The thermal resistance is increased or reduced by a given percentage for every kelvin of temperature difference between the two temperatures The thermal resistance of insulation is measured at 23 C while Table 2 2 shows the mean temperatures used for Australia and New Zealand JPA Designer determines appropriate mean temperature from the region of the calculation and direction of heat flow The standard percentage changes applied to different insulants are shown in TaJ ble 2 3 Table 2 2 Temperature adjustments Location Heat flow Mean temperature C Adjustment C Australia Out 15 8 In 30 7 New Zealand Out 12 11 In 27 4 To have the resistance of a layer adjusted for temperature CHAPTER 2 R VALUE CALCULATIONS 29 Table 2 3 Temperature adjustment factors for i
7. manufacturer of the product The same principle applies to the vapour resistance A composite material requires the following information e Type select Composite e Description type a description of the layer this will appear on the report e Thickness enter in millimetres mm e Thermal resistance enter in m K W e Vapour resistance only required if you will be carrying out condensation risk analysis enter in MNs g Where appropriate a composite material can be configured as a two directional heat flow product CHAPTER 2 R VALUE CALCULATIONS 31 Fixed vapour resistance materials Some materials such as glass and metals have vapour resistances which are effectively infinite even if they are used in very thin layers The fixed vapour resistance material type allows the thermal performance of these materials to behave in the same way as normal materials changing according to the thickness but allows their vapour resistances to be set as very high fixed values typically 100 000 MNs g As materials with fixed vapour resistances behave the same way as normal materials in thermal calculations you need only use the type in condensation risk calculations A fixed vapour resistance material requires the following information e Type select Fixed vapour resistance e Description type a description of the layer this will appear on the report e Thickness enter in millimetres mm e Thermal conductivity ente
8. on the file jsetup990 exe The In stallShield Wizard configures itself and after a few moments opens You may see a security warning that the publisher of the file could not be identified If you do click Run to continue the installation process 4 Click Next to continue with installation The installer displays the Licence Agree ment To continue with the installation click accept the terms of the licence agree ment then click Next 5 At the Customer information screen enter your name and company name and using the radio buttons select whether you want JPA Designer to be available to all user accounts on the computer or just one We recommend you select all Click Next 6 At the Choose Destination Location screen we recommend you accept the default settings and install JPA Designer into the folder c program files jpatl jpa designer 981 Click Next The installer will now copy the JPA Designer files onto your computer 7 When installation has finished the Setup Complete screen is displayed Tick the box labelled Launch the program and click Finish The installer will close and JPA Designer will open showing you the Project Manager window CHAPTER 1 JPA DESIGNER BASICS 4 User registration In order to use JPA Designer you must enter valid user registration details and the program must be able to check the status of your licence against our licensing database We supply the user name and key code when you buy a licence f
9. region settings affect calculations To copy project details from Project Manager 1 In the R value module select Edit Project Information from the menu bar The Project Information dialogue opens 2 Click the Inherit button 3 At the prompt choose whether you want the calculation to inherit the region settings for the project or not l These are sometimes referred to as summer and winter calculations In most cases you will want to inherit the project region settings 19 CHAPTER 2 R VALUE CALCULATIONS 20 4 Any information you entered in Project Manager is copied to the Project Informa tion dialogue here 5 Click OK To enter new project details 1 In the R value module select Edit Project Information from the menu bar The Project Information dialogue opens 2 Enter project information by typing it into the appropriate fields Use the lt Tab gt key to move between fields 3 If you need to use a region other than the default select the new Region in the list 4 Click OK when you have entered all the data you need To copy project details from the current calculation to all other calculations in project 1 Enter the address details in the Project Information and Options dialogue 2 Click Pass down 3 Atthe Information dialogue click Yes 2 2 Construction details The thermal performance of building element will be affected by the type of element and its position within a building These cond
10. start up Figure 1 4 The new splash screen for JPA Designer Uninstalling JPA Designer To uninstall JPA Designer 1 Open the Windows Add Remove programs control panel to access Control Panels select Settings Control Panels from the Start menu 2 Select JPA Designer in the Add Remove Programs Properties dialogue and click Add Remove Windows will uninstall the program files and remove its icons Uninstalling the program will not remove any JPA Designer project files Adding your company details to reports Most of the reports produced by JPA Designer can be customised to include your company name address and logo The details are added using Options dialogue from the main Project Manager window see kection 1 2 The logo must be a 256 colour BMP format fil It is also possible to set up details for several different companies within JPA Designer these sets of address details and logos are referred to as identities see section 1 2 You can switch between identities to produce calculation reports with different addresses and logos Setting up address details To set up your company details and logo for reports elf you have the company logo in a different format such as a jpeg tiff or png you can use the free Paint program which comes with most versions of MS Windows to convert it to the right format and to set the correct colour depth CHAPTER 1 JPA DESIGNER BASICS 8 Options Se Identity First company name
11. the effectiveness of thermal insu lation By carrying out condensation risk analysis CRA you can identify constructions which are likely to be at risk of condensation and where necessary make modifications to the design JPA Designer assesses the risk of interstitial condensation using the steady state method defined in ISO 13788 20124 which uses mean monthly temperatures and relative hu midities to assess the risk of interstitial condensation over a twelve month period The method provides a general assessment of suitability of the construction but does not ad dress air movement within the construction nor does it take account of the effects of capillary moisture transfer For further information on the causes and effects of condensation and guidance on reducing problems see the ABCB handbook Condensation in Buildings available here http www abcb gov au education events resources publications abcb handbooks SO 13788 2012 Hygrothermal performance of building components and building elements Internal surface temperature to avoid critical surface humidity and interstitial condensation Calculation methods 40 CHAPTER 3 CONDENSATION RISK 41 3 2 Condensation risk analysis in JPA Designer Condensation risk analysis determines whether condensation is likely to occur at the interfaces between the layers of material which make up the construction Using the hygrothermal properties of the materials section 3 2 and the e
12. the headline results for each interface in the construction To view the Results table on the View menu click Results Table When the table is open click the Always on top box to keep it visible on screen while you continue to work on the calculation When you have finished click Close to close the Results Table For calculations to ISO 13788 the significant columns are CHAPTER 3 CONDENSATION RISK 48 El Dewpoint Graph T zt ult 7 SS Sa Drg Always on top io Winter Summer Temperature Dewpoint Outside Rso 04 Internal External Inside 59 695 RH az 9 sRH Rsi 10 2PC 20 C 15 C 10 C BC gai C Figure 3 4 Dewpoint graph for a roof with condensation predicted at the interface be tween layers 4 and 5 e ISO Winter worst build up the month in which the highest amount of condensate is predicted to be deposited e ISO Winter peak build up the month which sees the highest cumulative amount of condensation For each column the amount of condensate is shown in grams per square metre g m The result n a means no condensation is predicted at that interface You can see more detailed results in the ISO Condensation table Producing reports The results of condensation risk analysis can be printed or produced as PDF files in the same way as the results of thermal calculations section 2 6 The main differences are 1 Before starting to print or create a PDF tick the Condensation risk box on the
13. user txt Notepad File Edit Format View Help 0O O Internal 25 50 25 50 25 50 25 50 25 50 25 50 1 O External 25 50 25 50 25 50 25 50 25 50 25 50 O 1 Internal 30 90 30 90 30 90 30 90 30 90 30 90 lili External 30 90 30 90 30 90 30 90 30 90 30 90 Figure 3 2 Editing the Env user txt file Item 1 whether the set is for internal conditions 0 or external conditions 1 Item 2 whether the set is system data O or user data 1 Item 3 a text description of the data set This appears in the Building location or internal conditions lists which are sorted alphabetically using the text description This item can start with the tilde character which does not appear on lists but controls the way in which items 4 27 are interpreted Items 4 27 these are the monthly temperature and relative humidity figures Tem peratures should be entered in degrees centigrade and relative humidity as a per centage The order of the data depends on whether item 3 starts with a tilde f item 3 has a tilde the mean monthly temperatures should be entered in a sequence starting with January followed by the relative humidity figures starting with January so Jan temp Feb temp December temp Jan rh Feb rh etc f item 3 has no tilde the temperature and relative humidity values for each month should follow each other so Jan temp Jan rh Feb temp Feb rh etc Item 28 the country code UK 0 Republic of Ir
14. 19910 Fax 33e3e3e3 Region mme Sel as default Email X Bobrtbullder cam Add to clients Edit clients list Reference certificate Date 2 December 2 Figure 1 7 The Project Address dialogue Adding project address details You can enter client address and site details for a project which you can then copy to all the individual calculations within that project You can enter and edit that informa tion using the Project Address dialogue Figure 12 You can also store client address information to reuse in other projects To add client and project details 1 From the menu bar select Edit gt Project Address The Project Address dialogue opens 2 Enter the data by typing it into the appropriate boxes Use the lt Tab gt key to move between boxes Do not try to enter data in the top left hand box this box is used for retrieving details you have previously stored 3 If you want to store the client details to re use later click Add to clients CHAPTER 1 JPA DESIGNER BASICS 11 4 Click OK when you have entered all the data you need To copy the project address details to all the calculations in a project 1 Enter the address details in the Project Address dialogue 2 Click Pass down 3 Click Yes at the confirmation dialogue 4 Once the copying is done click OK You can also copy project address details to individual calculations once you have opened the calculations see section 2 1 To re use existing client
15. JPA Designer is the reason some menu items for R value calculations refer to U value rather than R value Saving projects JPA Designer project are saved in the same way as any other file 1 From the menu bar select File gt Save Project The Save As dialogue opens 2 Select the folder into which the project should be saved enter a name for the project file By default JPA Designer will add the extension JDP to all file names 3 Click Save JPA Designer saves the project and displays the file name on the program title bar By default JPA Designer will save files into the JPA Designer user data folder on Windows 7 usually c ProgramData JPATL JPA Designer 981 You can specify a different default folder by specifying the startup folder using the Options dialogue Startup folder SDocumentsJPA SoftwaresSAP quenes S4P queres 2013 1 User data folder L PragramD atat PAPA Designer Open folder Check for programme updates 2 Use Proxy Server Proxy server Proxy usernarne Proxy part p Proxy password x Cancel Figure 1 9 Startup folder controls in the Options dialogue To specify the startup folder 1 From the menu bar select Options 2 On the General tab click the Select button for the Startup folder item 1 in ure 1 9 3 In the Browse For Folder dialogue select a folder and click OK 4 The folder will now be the default location for saving JPA Designer files and PDF files of calculation reports
16. Please contact JPA TL Ltd for information and current pricing CHAPTER 1 JPA DESIGNER BASICS 15 1 Start a new project in JPA Designer on the File menu click New 2 On the File menu click Import U value from another JPA Designer project 3 In the Open window select the file which contains the calculation 4 At the Import U value from Project dialogue Figure 1 12 select the U value cal culation from the list and click OK 5 The R value calculation is added to the open project 6 Repeat the process to import all calculations you want into the project Import U value from Project Select a U value to import Example 1 Cavity wall Example 2 pitched roof with horizontal ceiling Example 3 timber framed wall Example 4 external wall insulation Figure 1 12 The Import U value dialogue You can of course create new calculations for the template if you want to The name which appears in the Categories list is taken from the project name in the Project Manager window So before you save a template file you should change the project name to something which will help you identify the calculations from the list Figure 1 13 1 13 To set the project name 1 In the Project Manager window double click on the project name the default value is A blank project 2 In the Project Name dialogue type a new name for the project The template file must be saved in the same folder as the other JPA Designer user data fi
17. alling it see section 1 2 You can find details of the changes in each version on the announcements section of our web forumP Download JPA Designer Version 4 04b1 build D17 JPA Designer Version 4 04b1 Build 017 SAP Version 9 80 9 81 amp 9 90 Silverleaf Software Ltd Copyright amp JPA Technical Literature Figure 1 3 The About dialogue showing the version number Opening and closing JPA Designer To open JPA Designer e Select Programs JPA Designer gt JPA Designer from the Windows Start menu A splash screen Figure 1 4 appears when you open JPA Designer This allows you to add new calculations to a blank project or to open an existing project There is an option not to display the screen when the program starts up To close JPA Designer e Select File gt Exit from the JPA Designer menu bar The program will prompt you to close any files which have not been saved 3www techlit co uk If you are using a version earlier than 5 02a3 you will have to uninstall the program using the Windows Add remove programs or Uninstall programs control panel 5 CHAPTER 1 JPA DESIGNER BASICS 7 What would you like to do J Add a new SAP 2012 V9 92 calculation to the current project J Add a new SAP 2009 V9 90 calculation to the current project Add a new U value calculation to the current project Open an existing project Create a new project Cancel Don t show this dialogue on
18. als to the outside of a cavity For an explanation of the limitations of this technique please refer to BS 5250 1989 page 76 To use this option in JPA Designer 1 In the Options dialogue go to the Other tab 2 Tick Set vapour resistance of layers above vented cavity to zero 3 Open the condensation risk calculation 4 Double click on the cavity layer 5 In the Edit material dialogue set the cavity type to vented cavity The program will set the vapour resistance of the layers outside the cavity to zero
19. and FAQ on our web site http forum techlit co uk to see if the query is addressed there If you are new to condensation risk calculations we offer distance learning and on line training training courses which provide a thorough introduction to the software and its CHAPTER 1 JPA DESIGNER BASICS 3 1 2 Getting started This section of the manual describes how to install JPA Designer on your PC and explains how the user registration and on line licence checking systems work It also includes instructions on adding your company details and logo to reports System requirements JPA Designer runs on Windows XP Vista 7 and 8 see Technical Note 2012 04 Apple Macintosh users can run JPA Designer on a Windows virtual machine under Parallels Desktop or VMWare Fusion or on a Windows installation using Boot Camp we do not offer technical support for installing JPA Designer on such systems Whatever computer you are using it will require an internet connection to check the validity of the licence Installation To install JPA Designer on your PC 1 Go to our web site at www techlit co uk and right click on the link labelled down load JPA Designer select Save link as or Save target as the exact wording will depend on which the browser you are using 2 Save the installer file jsetup990 exe to your PC we recommend downloading the file to the Desktop The download is about 13 MB 3 When the download is complete double click
20. can add layers to the calculation by inserting materials from the program s extensive database which includes data for generic materials and cavities as well as branded products from a number of manufacturers For many common constructions it is possible to insert all the layers from the database If you cannot find a material in the database then you can insert a blank layer and edit the information yourself The program always adds a new layer directly above the currently selected layer so in the new layer would be inserted above the polyethylene and below the plywood sheathing When you start a calculation you should select the lowest layer which will be the inside surface resistance for walls and roofs and the outside surface resistance for floors before beginning to add layers Because layers are of this it is quicker to work from outside to inside for wall and roof calculations and from inside to outside for floor calculations Inserting layers from the Products database The Products database contains a wide range of materials and cavities for use in R value calculations and is accessed using the Products Database window Figure 2 3 The Products Database window has three main parts e The Categories box which is used to select the type of material you want to use Categories of branded materials are shown in bold categories of generic materials in normal text and user categories in italics see for information on adding your
21. characteristics of the Material facing the cavity as High emissivity or Low emissivity e The program will display a set of default sub floor air film resistances based on the ventilation and material selections You can edit the default values if you need to e Click OK Add the remaining layers of the floor construction Do not use this method to calculate R values of floors over open or unheated spaces such as car parks or garages instead select Floor other than ground floor in the Construction dialogue box and proceed as usual 2 6 Creating reports You can print R value calculation reports or produce a PDF file which can be opened on any computer with the free Adobe Reader software installed PDF files are ideal for emailing to people who need to see the results of the calculation but do not have JPA Designer For both print and PDF the report includes Project information Details of the construction A heat out R value calculation A heat in R value calculation To print a report On the File menu click Print or click the Print button on the tool bar The Sections To Print dialogue opens Figure 2 8 If you have several user identities see section 1 2 select the one you want to use in the report in the Identities list The TIMSA logo option is not relevant for Australia and New Zealand If you want to include a watermark over the calculation tick Print watermark text You can also modify the wording angle
22. data simply click on the list at the top of the Project information dialogue and select a client name Figure 1 8 If you need to edit the details held for clients click Edit clients list then make the changes in the Edit Clients dialogue Client name amp address CUD Hawkemoore Contracts Mr A T Builder 0 Gibbons Esq T amiri maille Figure 1 8 The client name and address list Setting the calculation region JPA Designer is designed to carry out the thermal calculations required in different regions of the world Some regions require U value calculations while others require R value calculations some regions only consider one way heat flow while others require two directional heat flow see Table 1 1 The region settings also determine the climate data available for condensation risk analysis Table 1 1 Regional calculation settings Region Calculation type Heat flow Asia U value Heat out Australia R value Heat in heat out Ireland U value Heat out Middle East U value Heat in heat out New Zealand R value Heat in heat out UK U value Heat out The calculation region can be set in the Project Address dialogue see Figure 1 7 CHAPTER 1 JPA DESIGNER BASICS 12 1 Select the Region in the list 2 Click Set as default 3 All new calculations will use that region You can override the region setting for individual calculations in the Project Information amp Options dialogue Ihe multi regional nature of
23. disclaimer box on the Options dialogue General tab e Including the total construction thickness in the calculation report In the Other tab of the Options dialogue tick Print total thickness on U value report The total thickness will then appear on calculation reports below the layer list 2 7 Editing the Products database To make U value calculations easier all JPA Designer U value modules include the Prod ucts database which provides key data on generic construction materials and cavities as well as data on branded products from a number of manufacturers This section explains how you can add frequently used products to the database The materials within the database are organised into three categories e Branded products from manufacturers shown in bold in the categories list CHAPTER 2 R VALUE CALCULATIONS 37 e Generic materials shown in normal type in the categories list e User defined materials shown in italics in the categories list Whilst you can create edit and delete user defined categories and materials you can not edit or delete branded or generic categories or materials However you can clone a generic or branded material and make changes to the cone leaving the original un touched E make uncia to the Products database you must first open the Edit database dialogue Figure 2 11 by selecting Edit Database from the main menu Edit Database Categories Products Flooring B
24. e Products box shows the material in that category 4 Click on a material to select it then click Add to construction alternatively you can double click on the material in the Products box The Thickness dialogue opens If the material has a set thickness the layer will be added without the Thickness dialogue opening CHAPTER 2 R VALUE CALCULATIONS 25 5 Enter the thickness of the layer then click OK The Construction box now shows the new layer 6 You can now add more layers from the database using the Construction box to control the position of the new layers 7 When you have finished adding layers click the Close button The main R value window now shows the calculation with the new layers added M Product database hints Product categories are sorted with branded materials first followed by generic and user categories sorted in alphabetical order If you are not sure which category a particular material belongs to you can click Search to find it You can use the Only show My database box to make the software only show categories which you have added Inserting blank layers in a calculation To insert a new blank layer 1 Select the existing layer which will be below the new layer 2 From the menu bar select Insert gt Blank layer alternatively you can press lt Insert gt The new blank layer is added to the calculation above the existing layer 3 Double click on the layer to open it for editing Manag
25. ectional heat flow follow when setting the thermal resistance e Vapour resistance cavities have a vapour resistance of 0 00 MNs g The cavity resistance calculator found to the right of the thermal resistance box see Figure 2 4 uses the method in ISO 6946 2007 which is not employed in Australia and New Zealand 2 5 Ground floor R values The standard method of calculating R values has to be modified for suspended ground floors to take account of the underfloor void and the ground Ground Floor Details Ventilation C Non ventilated Ventilated Material facing the cavity C High emissivity non reflective Low emissivity reflective Subfloor air film resistance m KAW Outward 0 08 Inward 0 08 Ground thermal resistance m K W Outward Inward 0 L x J Cancel Figure 2 7 The Ground Floor Details dialogue for suspended ground floors To calculate an R value for a suspended ground floor 1 Create a new U value calculation in the Project Manager window and open it for editing Section 1 3 CHAPTER 2 R VALUE CALCULATIONS 33 6 Enter any project information in the Project Information dialogue section 2 1 In the U value Construction dialogue set the Element Type to Suspended ground floor Click OK The Ground Floor Details dialogue opens Enter the data for the ground Figure 2 7 e Set the Ventilation of the sub floor void as either Non ventilated or Ventilated e Set the
26. eland 1 Australia 2 New Zealand 3 Asia 4 Middle East 5 Item 29 applies to external environmental sets and indicates whether internal con ditions should be calculated on the basis of continental conditions 1 or maritime conditions any other value This item is used only when internal conditions are to be derived from the external conditions it is not used if fixed internal conditions are specified As an example 1 1 Newcastle Airport 3 4 92 4 2 89 0 0 This shows e External data 1 e User data 1 e Location with no tilde CHAPTER 3 CONDENSATION RISK 46 e Paired monthly values for temperature 3 4 and 4 2 and relative humidity 92 and 09 e UK 0 e Maritime climate 0 Once the environmental conditions have been entered and saved in Env user txt and JPA Designer started the new data sets will show up in the internal conditions list Note that the conditions will only show if their region matches the region selected for analysis If there are several users of JPA Designer within the same organisation the Env user txt file can be set up on one PC then copied to the others ensuring everyone is using the same data sets 3 3 Viewing results You can view the results of condensation risk analysis in three formats e As month by month data in the ISO Condensation Table section 3 3 e As a graph in the Dewpoint graph section 3 3 e n summary form in the Results table section 3 3 ISO Conde
27. elative humidity columns will be adjusted 4 Alternatively to select a data set for internal conditions a Tick Use design data for internal conditions b Select a set of conditions from the list If the list does not have a suitable set of internal conditions you can create one see fection 3 2 5 Ignore the Risk level list a The data in the internal temperature and relative humidity will be set Creating new data sets You can build up and save sets of internal and external environmental conditions to use in condensation risk analysis This is particularly useful when examining air conditioned buildings which have design values for temperature and humidity User data is stored in a file Env_user txt which is kept with the other user data files in c ProgramData JPA JPA Designer file location correct for Windows 7 see Technical note 2012 01 for other versions of Windows Currently the only way to add data sets is to edit Env_user txt in a text editor such as Notepad Figure 3 3 Before editing Env user txt make sure JPA Designer is not running Within Env user txt the data for an external location or an internal design condition is on one line with each line separated by a return On each line the different items of data are separated by the pipe character with no spaces before or after the pipe The final character on every line is also a pipe The data items are CHAPTER 3 CONDENSATION RISK 45 lal Env
28. es multiply by five to obtain the resistivity or resistance respectively You can find guidance on converting from European units and from permeability and permeance figures in Annexes E 7 and E 8 of BS 5250 2011 Environmental conditions The condensation risk calculation requires mean monthly data for the external tempera ture and relative humidity and the internal temperature and relative humidity External temperature and humidity The external conditions depend upon the building s location JPA Designer includes ex ternal temperature and humidity data for each of the 69 climate regions in NatHERS as well as a number of weather stations allowing you to select the nearest location to the project site If you have environmental data for a location you can either enter that directly or add it to the program s standard data sets Internal temperature and relative humidity Internal environmental data can be e derived from the external conditions using the method in ISO 13788 Annex A 1 This is suitable for dwellings or offices with no air conditioning e entered as design conditions This is intended for buildings with cooling and or de humidification systems You can set design conditions for an individual calculation or create and use a new data set section 3 2 CHAPTER 3 CONDENSATION RISK Environmental Conditions J Use 2003 Condensation Method Internal amp External Conditions Building location C268 Launceston Airp
29. file to the folder containing the user data On Windows 7 this will be c ProgramData JPA JPA Designer Note The Certificate signature position and associated settings are no longer in use Setting up identities The procedure for setting up identities is similar to that for setting address details 1 Enter the details for the first company as described in Eection 1 2 2 Re open the Options dialogue CHAPTER 1 JPA DESIGNER BASICS 9 3 In the Identity list select the first blank identity usually labelled Blank 1 The Company name amp address and disclaimer information will be cleared 4 Enter the details for the second company including the data in Logo and signature tab Click OK to close the dialogue and save the data 5 Repeat steps 2 4 for any further identities As you add identities they will be added to the Identities list using the Name of the company in the list If you need to edit the data for any one of the identities select it from the Identities list make the changes and click OK When you come to create a PDF of a report or to print it you will be able to select one of the identities to use the associated details in the header Note that whichever identity you select when producing a report the report footer will always show the name of the company or individual holding the licence 1 3 Managing projects and calculations This chapter explains how JPA Designer stores calculations and describes how to w
30. have different combinations of properties JPA Designer recognises four types of material layer and five types of cavity However for R value calculations only the Clear Cavity is used The rest of this section describes the types of layer and the data required for each one CHAPTER 2 R VALUE CALCULATIONS 30 Normal Normal materials have the same composition all the way through so the thermal resis tance of a normal layer is calculated from the material s conductivity and thickness and the vapour resistance is calculated from the thickness and vapour resistivity A normal material requires the following information e Type select Normal e Description type a description of the layer this will appear on the report e Thickness enter in millimetres mm e Thermal conductivity enter in W mK e The program calculates the Thermal resistance in m K W e Vapour resistivity only required if you will be carrying out condensation risk anal ysis enter in MNs gm e The program calculates the Vapour resistance in MNs g Where appropriate a normal material can be configured as a two directional heat flow product section 2 4 Composite materials For composite materials for example insulation backed plasterboard there is no direct link between the conductivity thickness and thermal resistance You must therefore use the thermal resistance for the specific configuration of the material this will usually be supplied by the
31. he JPA Designer file name and the calcu lation name so the calculation tile hung wall in a project The Meadows will be called The Meadows JDPtile hung wall PDF 7 The file will be saved into the JPA Designer program data folder or in the start up folder you have specified see section 1 3 Note as Windows does not allow certain characters to be used in file names you should ensure the calculation names in JPA Designer do not contain those charac ters otherwise PDF creation will fail The restricted characters are A lt gt You can change the printer settings by selecting File Printer setup from the menu bar It is also possible to produce PDF reports of all the R value calculations at once In the Project Manager window on the File menu click Print all U value calculations in this project to PDFs The program will then offer the Sections to Print dialogue before creating the PDFs Adding notes to reports You can add notes to the report of a calculation which can be used to explain particular features of the calculation or to highlight assumptions made within it To add notes open the U value construction dialogue and click on the Print Report Notes tab You can then enter your wording Figure 2 10 The notes text will appear between the layers list and the final result CHAPTER 2 R VALUE CALCULATIONS 36 F U value Construction Element Details Unheated Spaces Print Report Notes Any no
32. ing layers Once you have added layers to your calculation you change their order cut copy and paste them or delete them e Moving a layer Click and hold the right hand mouse button on the layer number at the left hand side of the window Drag the layer to a new position Release the mouse button e Cutting a layer removes a layer from the calculation but keeps it available on the clipboard Click on the layer to select it Click the Cut button on the toolbar The layer is deleted from the calculation but remains on the clipboard for pasting CHAPTER 2 R VALUE CALCULATIONS 26 e Copying a layer puts a copy of the layer on the clipboard Click on the layer to select it Click the Copy button on the toolbar The layer remains in place but is copied to the clipboard e Pasting a layer places the layer on the clipboard into the calculation Click on the layer which you want to be below the pasted layer Click the Paste button on the tool bar The layer on the clipboard is placed in the calculation above the selected layer e Deleting a layer removes a layer permanently from the calculation Click on the layer to select it Click Delete 2 4 Working with materials The properties of layers are entered and edited in the Edit Material dialogue Figure 2 4 The dialogue enables you to set e the basic characteristics of the material section 2 4 e the type of materia
33. ional Air gap correction delta U 0 00 wim 7 Hep X canca Figure 2 4 The Edit Material dialogue e Thermal conductivity the rate of conduction heat transfer through 1m of the ma terial measured in W mK Usually referred to as the lambda value e Thermal resistance the resistance to heat transfer provided by the layer measured EAS in m K W e Vapour resistivity the rate of transfer of water vapour through 1 m of the material measured in MNs gm e Vapour resistance the resistance to water vapour provided by the layer measured in MNs g The following two values are only required for K value calculations e Density the mass per cubic metre of the material measured in kg m e Specific heat capacity the amount of energy required to raise the temperature of one kilogram of the material by one Kelvin equivalent to 1 degree Celcius kJ kg Two directional heat flow Some layers primarily thermal insulation and air spaces have different thermal resis tances depending on the direction in which heat is being transferred There are two ways of addressing these two directional heat flow products CHAPTER 2 R VALUE CALCULATIONS 28 e by entering two thermal resistances or e by adjusting the resistance of insulation for the ambient temperature using a cor rection coefficient 2 000 pA 2 directional heat flow product Thermal resistance In 0 000 Thermal resistance Out 0 000 Type Figure 2 5 Two
34. itions are set in the U value Construction dialogue Figure 2 1 which accepts details of e The type of element e g roof wall floor together with additional information for some elements section 2 2 e The conditions at the internal and externals surfaces see Section 2 2 To enter data 1 From the menu bar select Edit Construction type The U value Construction dia logue opens 2 Enter your data and click OK For some constructions such as those with mechanical fasteners you may find it easier to enter some of the data in the construction dialogue after you have entered the layers of the element Note that the U value Construction dialogue shows a number of options which are not required for R value calculations including light steel frame construction twin skin metal roofing and cladding and the mechanical fixings corrections CHAPTER 2 R VALUE CALCULATIONS 21 U value Construction Element Details Unheated Spaces Element Type External Surface Flat roof Emissivity High Low Surface Resistance m K W Outward 0 04 Inward 0 04 Internal Surface ee Emissivity High Low rface Resistance m K W Outward 0 11 Inward 0 16 Pitch roof horizontal ceiling Floor other than ground floor Light steel frame Construction Type BRE Digest 465 a vanes Not a light steel frame Construction amp Pitch roof ceiling at rafter line Suspended ground floor M 2 Wall C Basement Fl
35. l section 2 4 To edit the properties of a layer 1 Click on the layer to select 2 From the menu bar select Edit Layer alternatively double click the layer or press lt Enter gt The Edit Material dialogue opens 3 Amend the data for the layer and click OK Note that there are part of the Edit material dialogue such thermal bridging and air gap correction settings which are not used in R value calculations Basic characteristics The Material section contains the basic data about the layer including e Description the name of the material or a description which appears in the cal culation e Code and Category used with the database to sort or enter materials but not in general use e Thickness the cross sectional thickness of the layer measured in mm CHAPTER 2 R VALUE CALCULATIONS 27 Edit Material j Material Description Product X Code Category ee ae thc d Mica W mK mzKfw MNs gm 100 nfa 4 000 n a 1 000 Density kg m3 0 0 7 2 directional heat flow product Resistance decrease per K above 23 C Specific heat capacity I kg K 0 0 Thermal resistance In 2 36 06 000 E ID 463 Thermal resistance Out ei Requisite ID 0 Type Bridge type Normal Membrane Well Vented Cavity ISO 6946 2007 None 7 Help Composite Clear Cavity Slightly Vented Cavity ISO 6946 2007 M MP EE Fixed Vapour Resistance O Bridged Cavity LIEIIG Is thermal insulation Vented Cavity 2 dimens
36. lack Sheathing Felt 3 00mm Insulation loose Cement Partical Board 20 00mm Fibre Board 13mm 13 00mm Lath and render 18mm 19 00mm Membranes Onduline Sheet 3mm 3 00mm Metal Lined VB P V C Rigid 5 00mm Metals and glass Perlite 15mm 15 00mm sand Binding Migcellaneou dB screed 50 00mm Render and plaster Gheet 3mm Roofing eingle Ply Membrane Soil Sand and Gravel stone Timber Woodfibre qn z a 023 EcoTherm UK L LTD Delete category 1 New category E Delete m New product NET Figure 2 11 The Edit Database dialogue To add a user defined category 1 Click the New category button 2 Enter the name of the category in the New category dialogue 3 Click OK The new category is created To rename an existing user defined category 1 Select a category by clicking on it 2 Click the Edit category button The Edit category dialogue opens 3 Enter a new name then click OK The category is renamed CHAPTER 2 R VALUE CALCULATIONS 30 To clone a category 1 Select the category to clone by clicking on it 2 Click the Clone category button The Clone category dialogue opens 3 Enter a name for the new category and click OK 4 A new category will be created containing copies of the original materials To delete a user defined category 1 Select the category t
37. les and in the JTF format To save a project as a template 1 On the File menu click Save Project as Template The default A Blank Project will be no help at all a few weeks after you have created the template CHAPTER 1 JPA DESIGNER BASICS 16 F A blank project Wall templates Figure 1 13 Changing the project name 2 Enter a File name 3 Set the folder to the user data folder in Windows 7 c ProgramData JPA JPA Designer 4 Make sure Save as type is set to JPA Designer U value Template JTF and click OK 5 Your template project is now included in the Categories list Opening and closing calculations To open a calculation from the Project Manager window either e double click on the calculation name or e click once on the calculation name then from the menu bar select Edit gt Selected Item To close a calculation and return to the Project manager window click the Project man ager button on the tool bar Duplicating calculations If you want to carry out a calculation which is very similar to an existing calculation in a project you can duplicate the calculation and then change the copy leaving the original calculation untouched To duplicate a calculation 1 In the Project Manager window click once on the calculation to select it 2 From the menu bar select Edit Duplicate item The Description dialogue opens CHAPTER 1 JPA DESIGNER BASICS 17 3 Type a name for the duplicate calculation a
38. levant The option to enter data for the fixings in rainscreen cladding is not relevant CHAPTER 2 R VALUE CALCULATIONS 22 e Floor other than ground floor A floor over an open space e g a parking bay or an unheated space e g an enclosed garage e Solid ground floor A floor which is contact with the ground across its whole area such as groundbearing concrete slab e Suspended ground floor A floor with a ventilated space below the floor deck such as a beam and block floor or timber joist floor Note the Solid ground floor Basement floor and Basement wall elements are not suitable or R value calculations You may also enter a description for the element in the Description box or select one from the drop down list The description does not affect the calculation Internal and external surfaces R value calculations take account of the heat flow at the internal and external surfaces of an element by means of the internal and external surface resistances Those resistances are affected by the direction of heat flow through the construction and the emissivity of the exposed surfaces The surface resistances used in the calculation are shown in the two pairs of Surface Re sistance boxes with each pair having a resistance for outward and inward heat flow The program automatically adjusts the surface resistances according to the type of element being considered section 2 2 and the emissivity of the surfaces using the values fr
39. nd click OK A copy of the original calculation is added to the project When naming a calculation avoid using the Windows restricted characters lt gt otherwise you will have problems creating PDFs of calculation reports see for a more detailed explanation You can now work with the duplicate calculation in the usual way Importing R value calculations When you need to re use an existing R value calculation in a new project you can import a copy of the calculation from its original project into a new one To import a calculation into the current project 1 On the Program Manager File menu select Import U value from another JPA De signer project 2 In the Open dialogue select the project containing the original R value calculation Click OK 3 In the Import U value from Project dialogue click on the calculation to select it then click OK The R value calculation is copied into the current project Importing existing R value calculations into a new project is a quick way of building a set of R value templates see Renaming calculations To change the name of a calculation 1 In the Project Manager window click once on the calculation to select it 2 From the menu bar select Edit Rename selected item The Name dialogue opens 3 Enter a new name for the calculation and click OK The Project Manager window shows the new name When naming a calculation avoid using the Windows restricted characters
40. nd the licence is not valid the calculation will not open If you often use JPA Designer away from the office there are two features you can use to prevent problems with the licence check e The Project Manager tool bar displays the length of time since the last successful licence check provided the values shown are green the module will open e The Check licence on line button on the tool bar will force a licence check and re set the time since the last check to zero You should force a check if you expect not to have an internet connection for a few days Updates JPA Designer is continually being developed to introduce new features to get the best from the program it is worth making sure you are using the latest version You can find CHAPTER 1 JPA DESIGNER BASICS 6 the version number by selecting Help About from the menu bar in JPA Designer and compare that with the version number shown on our www techlit co uk Higher numbers and letters indicate later releases with characters coming earlier in the name being more important that later ones so 4 05a1 will be more recent than 4 04c2 and 4 05b1 more recent than 4 04a4 The three digit Build number indicates a minor change in a version shows the About dialogue for JPA Designer together with the version number on the web site in this case the software is up to date as both version numbers are the same The process for updating the software is identical to that of originally inst
41. nsation Table The ISO Condensation Table shows the amount of condensate predicted at each interface in the construction and is the most accurate means of viewing the results of an analysis to ISO 13788 To view the ISO Condensation Table on the View menu select ISO Condensation Tabler The upper part of the window Figure 3 3 shows the interfaces within the construction When you select an interface by clicking on it the lower half of the table shows the amount of condensation predicted at that interface It shows the amount of condensate deposited or evaporated each month gc and the accumulated condensate at the end of each month Ma both measured in g m A negative amount of condensate indicates the amount of moisture predicted to evaporate in that month The results always start with the first month in which condensation is predicted if no con densation is predicted in any month results start with January Guidance on interpreting results is given in ISO 13788 and BS 5250 The Dewpoint graph In condensation risk analysis the dew point is the temperature at which air would be saturated with vapour Condensation occurs when the temperature at a point with in the construction drops below dew point and the air cannot support all the water vapour resulting in some of the excess being deposited as liquid water The Dew point graph is a visualisation of the relationship between the predicted temper ature through an element and the dew poin
42. nsulants Material Change in resistance per kelvin 96 Glass wool polyester sheep s wool 0 65 Rockwool 0 39 Cellulose 0 52 1 Enter the Thermal resistance of the material 2 Tick 2 directional heat flow product 3 In the Decrease resistance list select the insulation type see Figure 2 5 The per centage box shows the adjustment being applied f the insulation type is not listed select Other and enter a value in the Percentage box 4 Set the Type of material this will usually be Normal or Composite General Logo amp Signature Email Dther U value Black amp Beam floor default screed conductivity v v Mechanical fastener calculations to 007 ver 2 directional heat How product treatment Adjust above 23 C Adjust at all tenperaturers Figure 2 6 Temperature options for two directional heat flow products f Options for adjusting resistances The thermal resistance of insulation is usually measured at 23 C AS NZS 4859 1 requires resistances to be adjusted for mean temperatures above that However it is common practice to adjust resistances at mean temperatures below 23 C as well You can specify whether JPA Designer adjusts only above 23 C or above and below 23 C in the Options dialogue In the section 2 directional heat flow product treatment select either Adjust above 23 C or Adjust at all temperatures see Figure 2 6 Types of materials and cavities Layers within building elements
43. nvironmental conditions section 3 2 the program looks at each interface in the construction and calculates e the amount of condensate deposited or evaporated during each month of a year e the maximum amount of moisture deposited e the accumulated mass of water compared to total evaporation during the year e the annual moisture balance You can then use the results to assess the suitability of the construction for that environ ment To carry out condensation risk analysis 1 Define the element in the same way as you would for a thermal calculation tion 3 2 2 Set the environmental conditions section 3 2 3 View the results section 3 3 For Australia and New Zealand where cavities and insulants have different properties according to the direction of heat transfer the condensation risk module has to select whether to use the heat out or heat in properties for analysis For each month the program compares the internal and external temperatures e where a month has a higher inside temperature the analysis uses the heat out values of materials e where a month has a higher external temperature the analysis uses the heat in values of materials Defining the construction To carry out condensation risk analysis you must set the thermal resistance and vapour resistance of each layer which makes up the element using the appropriate methods for each type of layer e Normal materials Enter the thickness thermal conduc
44. o delete 2 Click the Delete category button An Information dialogue asks you to confirm the deletion 3 Click Yes to delete the category No to keep it To insert a new material in a user defined category 1 Select the category in which you want to create the new material 2 Click the New product button The Edit material dialogue opens 3 Complete the Edit material dialogue section 2 4 4 Click OK The new product is added to the category To edit an existing user defined material 1 Select the product you wish to edit 2 Click the Edit product button The Edit material dialogue opens 3 Make the changes in the Edit material dialogue section 2 4 4 Click OK The product information is updated To clone an existing product in a user defined category 1 Select the product and click the Clone product button A copy of the product will be inserted in the category 2 Click on the clone to edit it To delete a product from a user defined category 1 Select the product you wish to delete 2 Click the Delete product button The product is deleted CHAPTER 2 R VALUE CALCULATIONS 39 Search Database Search far Direction Forward Back gnare case Firid nest E Llose Figure 2 12 The Search Database dialogue You can search the database to find specific products 1 Click the Search button The Search Database dialogue opens Figure 2 12 2 In the Search Database dialogue enter
45. om the AIRAH Handbook shown in Table 2 1 The default emissivity setting is high emissivity Virtually every commonly specified sur face material has a high emissivity so there is rarely any need to change the default You can of course replace default resistances with your own values Table 2 1 Air film resistances Resistance m K W Wind speed m s Heat flow Element High emittance Low emittance Still air Horizontal Up 0 11 0 23 Down 0 16 0 80 45 slope Up 0 11 0 24 Down 0 13 0 39 22 5 slope Up 0 11 0 24 Down 0 15 0 30 Vertical Horizontal 0 12 0 30 6 00 winter Any Any 0 03 3 00 summer Any Any 0 04 0 5 internal Any Any 0 08 2 3 Working with layers Each R value calculation is built up by inserting layers which correspond to the differ ent materials in the construction For example a R value calculation for a cavity clay masonry wall could have a layer to represent each of CHAPTER 2 R VALUE CALCULATIONS 23 e the outside surface resistance e the outer leaf of brickwork e the cavity e a reflective foil e the inner leaf of masonry e the plaster finish e the internal surface resistance I Fae Med Y nr ee ee vti Ltt Breather membrane 655 50 Plywood sheathing a Mew layer will be 20 0 Falythiene B00 gauge uu 12mm BS5525l inse rted above Plasterboard 655250 below plywood 12 5 Inside surface resistance Figure 2 2 The new layer will be inserted above the selected layer You
46. oor E Rainscreen dadding C Basement Wall 0 Cold Hybrid Element description Built up metal roof wall dadding using rail amp bracket spacer SCI P312 E Built up metal roof wall Layer bridged by mechanical fasteners Mechanical fasteners um i New No perm 0 00 Fastener 599909 W mK Alpha oo m C 5 gooo mm Recess 0 0 mm ES lambda m oam section 7 Help E Use point thermal transmittance cance Figure 2 1 The U value Construction dialogue Element type JPA Designer recognises several types of element which have to be treated differently in the calculation process Use the radio buttons in the Element type section to select the type of floor wall or roof For some elements there are options for entering additional information The element types relevant for R value calculations are e Flat roof A roof with typically less than 10 pitch Pitched roof with horizontal ceiling Typically a cold roof with the insulation applied between and over the ceiling joists You must enter the pitch angle of the roof measured from the horizontal e Pitched roof with ceiling at rafter line A warm roof with the insulation in the plane of the rafters This element type can also be used for pitched roofs with a horizontal ceiling where the resistance of the attic space is known e Wall Any construction at an angle of more than 70 to the horizontal P The options for inverted roofs are not re
47. or a module If you do not enter your details JPA Designer runs in demonstration mode and will not display the results of calculations To enter license details for a module 1 At the Project Manager window Figure 1 1 select Edit User and Security Codes from the menu bar The User Registration dialogue opens section 1 2 2 In the section for the module e g the U value module enter the company name exactly as supplied in the registration email in the box Your company name The company name is case sensitive and should be entered exactly as shown in the email so if for example you enter Limited when the company name with the key code contained Ltd the program will not accept the key code 3 Copy the key code from the registration email and paste it into the bottom box on the User Registration dialogue 4 Click the Apply code button for the module The program copies the code into the Key code boxes for the module If you have bought several modules repeat the steps for each one File Edit Insert Options EPC Help Ble ola On line licence SAF en check U value Od 22h 2m 28s amp blank project Building 3 SAP 9 90 Dwelling fe End of terrace End of terrace with micraCHP Figure 1 1 The Project Manager window On line licence checking JPA Designer checks the validity of your licence for a module the first time you open a calculation after the the program has started It does this by contac
48. ork with project files and calculations It describes how to use calculation templates to speed up the calculation process The project file JPA Designer organises and saves calculations in project files which have the extension JDP You can save multiple calculations in the same file Calculations are created saved and managed in the JPA Designer Project Manager win dow Figure 1 1 which lists all the calculations in the current project Starting a new project Whenever you start JPA Designer the program creates a new blank project which you can use straight away You can also create a new project at any time by selecting File New Project from the main menu or clicking the New Project button on the toolbar You can change the default project name A blank project to something more useful 1 Click once on the project name and select Edit Rename selected item The Project name dialogue opens Figure 1 6 2 Enter the new name for your project then click OK 3 The project is renamed The project name does not affect the calculations in any way CHAPTER 1 JPA DESIGNER BASICS 10 Project Name Enter a name for this Project Brownfield Mews Figure 1 6 Changing the name of a project Project Address Client name amp address Project address Mr R T Builder d The new House Mr A T Builder Windy Lane The Old ard Townton Townton Blankshire Blankshire Post Code 4B1 gY Post Code 461 2CD Phone 001
49. ort v Calculate internal conditions based on external conditions Use design data Far internal conditions Climate Meantime Continental or tropical Occupancy Normal High Risk level Average Int T Int RH Ext T Ext RH Jan Eo Bb 15 7 4 4 Feb a Bb 2 16 2 46 0 Mar eed b4 r 14 7 40 Apr 20 9 61 8 11 8 83 5 M av 0 0 53 0 4 0 Vn Jun 0 0 ate 7 1 81 2 Jul 0 0 AB 7 B F Ad Aug 0 0 AY ra 49 5 Sep 20 0 59 2 4 2 HD 2 Oct 20 3 60 6 10 6 46 5 Hor 21 4 B2 B 12 8 33 0 Dec fee 65 4 15 4 128 Figure 3 1 The Environmental Conditions dialogue 43 CHAPTER 3 CONDENSATION RISK 44 Setting environmental conditions The environmental conditions for condensation risk analysis are set in the Environmental Conditions dialogue Figure 3 1 To set the environmental conditions 1 On the Edit menu select Edit environmental conditions 2 Select the Building location from the list Once you have done that the external temperature and relative humidity columns are filled in The list only shows locations for the selected region The locations starting CZ are climate zones based on the NatHERS data set 3 To derive the internal conditions from the external conditions a Tick Calculate internal conditions based on external conditions b At Climate select Continental or tropical c At Occupancy select Normal or High High occupancy will set a higher moisture load d The data in the internal temperature and r
50. own materials CHAPTER 2 R VALUE CALCULATIONS 24 Products Database E IN E S Categories Products Renotherm Asbestos cement sheeting amp substitutes BS5250 ee Decking Phywond omnes Fibreboard BS5250 Brickwork Foamed glass BS5250 Cavities Hardboard 855250 Composite boards Medium Density Fibreboard B5 Concrete ee PVC rigid sheet J Flooring Waferboard Insulation loose Woodwool slabs f Thickness P Insulation slab oe Enter the product thickness in mm Only show My database Sort on short c 12 5 Cancel Short Code Next Search Y Add to constuction Construction Outside surface resistance Brick outer leaf BRE Cavity gt 25mm wall CIBS Paolyisocyanurate B55250 Blockwork medium Exposed 1400kg m 440 x 215mm Plaster Dabs Cavit Plasterboard 855250 Inside surface resistance Figure 2 3 The Products Database window e The Products box which you use to select a material from a particular category e The Construction box which shows the order of layers in the construction To insert layers using the Products Database 1 Select the existing layer which will be below the new layer 2 On the Insert menu click Layer from database or click the Database button on the toolbar The Products Database dialogue opens 3 Use the scroll bar on the Categories box to find the manufacturer or type of material you need then click once on that category Th
51. r in W mK e The program calculates the Thermal resistance in m K W e Vapour resistance enter in MNs g Membranes Membranes such as vapour control layers or vapour open roofing underlays are treated as having no thermal resistance The only property they have is their vapour resistance Membranes require the following information e Type select Membrane e Description type a description of the layer this will appear on the report e Vapour resistance enter in MNs g amp Membranes with low emissivity surfaces Membranes have no direct effect on thermal calculations However a membrane which has one or two low emissivity faces may improve the thermal performance of a construction by increasing the resistance of adjacent cavities that is addressed in the calculation by changing the resistance of the cavities not the membrane Clear cavities The thermal resistance of a cavity is not calculated directly from its thickness but is usually entered as a default value selected on the direction of heat flow and the thickness range The Product Database contains standard resistances Clear cavities such as those in cavity walls require the following information e Type select Clear cavity e Description type a description of the layer this will appear on the report CHAPTER 2 R VALUE CALCULATIONS 32 e Thickness enter in millimetres mm e Thermal resistance enter in m K W Where the cavity has two dir
52. small window which displays text boxes or buttons for entering data e Radio button a set of two or more related buttons you can only select one at a time e Tick box a box which lets you turn a setting on ticked or off not ticked e Text box an area on a dialogue in which you can type words or numbers e List a box on a dialogue which can be expanded to show a number of pre set options usually by clicking an arrow on the right hand side of the box Many functions of JPA Designer can be accessed using either the menus or the toolbars also some may also have keyboard shortcuts To avoid repetition this manual refers only to the menus Getting help If you have a problem with the functioning of the software please follow these steps e Download and install the latest version of JPA Designer from our web site see for instructions and see if that resolves the problem e Check the forum and FAQ on our web site http forum techlit co uk to see if the problem is addressed there e f the problem persists email details of the problem to support techlit co uk Please include details of your computer system and attach sample files or PDF outputs where possible We will respond as soon as we can If you have difficulty using the program for example you are uncertain how to enter a layer in a condensation risk calculation please follow these steps e Consult the program manual or on line help system e Check the forum
53. st pick the template you wish to use 3 Click New U value from Template The Description dialogue opens 4 Edit the name of the template to suit your project or accept the default name Once you are ready click OK 5 A new R value calculation is added to the project 6 You can now open and edit the calculation by double clicking on its name in the Project Manager list Creating user defined templates You can create templates from your own R value calculations by saving them in JPA Designer template files which have the file extension JTF You can have several different template files which allows you to sort the calculations into groups you might have one for wall calculations and one for floor calculations alternatively you might divide them into masonry or timber framed calculations The simplest way to create a template file is to use the Import U value feature to collect all the existing R value calculations you want available into one project then save the project as a template file To import an existing R value calculation to a project If you are a manufacturers of construction materials you can add R value calculations which include your materials into the set of templates which is distributed with JPA Designer Offering R value calculations with your materials makes it easier for designers to include them in R value calculations and specifications and helps to ensure the materials are included in calculations correctly
54. status bar at the bottom of the main U value window CHAPTER 3 CONDENSATION RISK 49 Sections To Print Sechons to print Summer time condensation resulta ISO moisture table Thermal mazs T apered insulation Figure 3 5 The Sections To Print dialogue for condensation risk reports 2 In the Sections To Print dialogue review whether you want to print the summer time condensation results and the ISO moisture table and tick the appropriate boxes 3 4 Using the BS 5250 1989 calculation method The BS 5250 1989 Appendix D method is based on the same underlying principles as the method set out in ISO 13788 but analyses condensation risk for a 60 period rather than the whole year and reports results in a different way The Appendix D method is no longer referred to by building regulations and standards but is still available within JPA Designer To use the BS 5250 1998 calculation method open the Environmental conditions dia logue and untick Use 2003 condensation method The dialogue box will now show the environmental data for the BS 5250 1989 method External conditions The program sets standard values for external environmental conditions following BS 6229 1982 and BS 5250 1989 which are e summer temperature 18 C winter temperature 5 C e summer relative humidity 65 winter relative humidity 95 If you need to calculate condensation risk for other external environments you can change the standard values by
55. t The orientation of the Dew point graph is determined by the building element walls are shown with layers running vertically and roofs with layers running horizontally The graph shows two lines CHAPTER 3 CONDENSATION RISK 47 ISO Condensation Table 1 3 mm Click on an interface to view the Build up figures Aluminium Rockwool Cladding Roll Rockwool Cladding Fall Bitustick Bitustick Rockwool Cladding Fall 107 23 ford 1743 4 2005 52 3735 18 4424 80 4746 52 4604 46 4040 31 seb FF ear 22 2214 53 Print Form FL Close Figure 3 3 ISO 13788 Condensation table e the temperature gradient through the construction calculated for each interface shown in red and e the dew point at each interface shown in blue The lines are plotted for the month with the worst condensation conditions Where the two lines do not touch the actual temperature is above dew point and no condensation is predicted at those interfaces Condensation is predicted at any interface where the two lines touch see Figure 3 4 Note that the actual temperature will never be lower than the dewpoint and the lines will never cross To open the Dewpoint graph e on the View menu select Dewpoint graph or e click the Dewpoint graph button on the tool bar To view the results for the month with the greatest evaporation click the Summer button in the Results to show section The Results table The Results Table shows
56. tes which you wish to add to a calculation report can be entered here They appear on the report between the layer list and the final result Figure 2 10 The Print Report Notes tab in the U value Construction dialogue Customising reports You can control many aspects of the appearance of JPA Designer s calculation reports e Selecting the printer In the U value module select File Printer setup You can select the printer and paper source It is possible to set the page orientation to landscape rather than portrait but the reports are not designed for landscape format e Changing the font used in reports In the U value module select File Font Then in the Font dialogue set the typeface style and size The default is Arial regular 10 pt Larger sizes may cause problems on the page with columns overflowing Note also that some fonts are wider than others even at the same point size so it worth testing font settings e Page margins These are set in the General tab of the Options menu There are two Top settings one for the first page and one for the second page This is to allow you to print calculations onto headed paper with printing on the first sheet starting lower down the page e Adding your logo and address You can add your logo and contact details to cal culation reports see section 1 2 e Adding a disclaimer to be shown at the bottom of calculation reports Enter the disclaimer text in the U value
57. the Project Manager win dow You can now edit them without affecting the original project 2 R value calculations 2 1 The JPA Designer R value modules JPA Designer offers two R value modules e R value 2014 calculates R values for walls roofs and intermediate and suspended ground floors e R value 2014 Professional has the functionality of R value 2014 and also performs condensation risk analysis using the methods set out in ISO 13788 2012 The program carries out two R value calculations for each construction a heat in calcu lation and a heat out calculation R value calculations are carried out in the R value module by 1 Entering project information Section 2 1 2 Entering data about the construction as a whole including the element type e g wall floor roof section 2 2 3 Defining the different layers which make up the element section 2 4 4 Printing calculation results or creating PDF files of the results for emailing sec lion 2 9 R value project information JPA Designer can store client and project details for each calculation and then add them to calculation reports You can either copy the client and project details which you en tered in the Project Information dialogue in the Project Manager window or you can enter new data in the R value modules You can also save and re use client data sec tion 1 3 In either case you can select the Region for the calculation see for an explanation of how
58. the text you want to search for and the di rection the program should search through the database forwards or backwards 3 Tick the Ignore case box if you want the search to ignore capitals and lower case letters 4 Click Find first to start the search The program will display the first matching product in the Products pane 5 Click Find next to go on to the next matching product 6 When you have found the product you want click Close to close the Search dia logue When you have finished working on the database click the Close button to return to the main U value window Short codes You can assign codes to user defined materials as you enter them in the database The short codes can then be used for rapid data entry using the Products database You can also use short codes to determine the order in which products and materials are presented within categories to speed up data entry for common constructions To sort the database by short codes you must first assign short codes to the materials use a numbering system which matches the order in which you want the materials to appear Once you have assigned short codes you should click on the Sort on short code tick box in the Products database dialogue Figure 2 3 3 Condensation risk 3 1 The problem of interstitial condensation Condensation occurring within building elements interstitial condensation can cause substantial damage to the building fabric and reduce
59. ting our on line licensing database and checking the expiry date for module e f the check is successful and the licence is valid the module will open The pro gram will record the date and time of that successful check The process only looks for the company name and checks the licence status and expiry date on the database CHAPTER 1 JPA DESIGNER BASICS 5 User Registration U value product details Tour company name TOU company name U value key code OO0U DAD Dana Don EE SAF product details Tour company name our company name SAP key code DOLI DOLI agog OO00 Dan PY product details Tour company name our Company name PY key code ogag aoga ogad OO00 DOLIO IF yu have received your keycode by email you can copy and paste it into this bos and press the Apply button 1234578901234567090 Apply U value key code Apply SAP key cade p Call JPA on 44 0 0191 281 0031 to buy the software and obtain a Key Code x Cancel Figure 1 2 The User Registration dialogue e f the program is unable to connect with the database for example because you are using your lap top away from your office it will look at the date of the last successful check if that is less than seven days ago then the module will open e f the program is unable to connect with the database and the last successful check is more than seven days ago then it will not open the module e f the check is successful a
60. tion risk analysis for Australia and New Zealand JPA Designer includes many features to make the calculation process easier e a project based file system which enables you to keep all the calculations for one development in same project file e calculation results can be produced as PDF files for emailing e a comprehensive database of common materials We hope you find JPA Designer a useful calculation tool We are always happy to receive comments suggestions for improvements or proposals for enhancements to suit your specific needs Conventions for the manual The manual uses the following conventions e lt angled brackets for keys on the computer keyboard e g the Enter key e the sign indicates you should hold down one key while pressing another e g lt Alt F gt means hold down the lt Alt gt key while pressing the lt F gt key e Bold type indicates parts of JPA Designer s screen displays e g the Ventilation rate dialogue e Menu option indicates an option in a menu on the program s menu bar e g Select Edit Primary heating system means click on the Edit menu and select Primary heating system from the list This manual uses the following special terms JPA Designer includes a number of different program modules some notably the SAP modules are intended only for use in the UK We have a separate manual for the UK on our web site 1 CHAPTER 1 JPA DESIGNER BASICS 2 e Dialogue dialogue box a
61. tivity and vapour resistivity JPA Designer will calculate the thermal resistance and the vapour resistance The module can not carry out condensation risk analysis for ground floors basements nor construc tions containing variable layers neither will it calculate the risk of surface condensation CHAPTER 3 CONDENSATION RISK 42 e Composite materials Enter the thermal resistance and vapour resistance Although the thickness is not required for the calculation setting the thickness ensures the Dewpoint graph Figure 3 4 looks right e Fixed vapour resistance materials These are designed to be used in condensation risk analysis to represent materials such as metals which have very high resistances even when used in thin layers Enter the thickness thermal conductivity and the vapour resistance e Membranes Enter the vapour resistance e Cavities Enter the thermal resistance The vapour resistance of a cavity is always zero Enter the thickness to ensure the the appearance of the Dewpoint graph The data for each type of material and cavity is described in more detail in section 2 4 If you have already carried out thermal calculations on the same construction you need only check that the vapour resistivity or resistance figures are correct Units of vapour resistance and resistivity JPA Designer uses the vapour resistivity with units of MNs gm and vapour resistance with units of MNs g If material data is quoted as u or s valu
62. typing new values into the text boxes To return to the default values for external environmental conditions click the Default button Build up of condensate is assessed over a standard 60 day winter period that value can be changed using the Condensation build up period box CHAPTER 3 CONDENSATION RISK 50 Internal conditions The internal temperature and relative humidity values will be determined largely by the building use You can enter design data or measured values in the four boxes or select one of the pre defined building use groups listed in Building Use which are taken from BS 5250 and BS 6229 Table 7 BS 5250 1989 results Once you have set the environmental conditions you can view the calculation results using the Results table section 3 3 and the Dewpoint graph section 3 3 On the results table the important columns are e Winter buildup which shows the build up of condensate over the 60 day winter period and e Annual buildup the amount of condensate carried over into the next year A nega tive figure indicates there is no condensation carried forward Both figures are given in g m Calculation options The BS 5250 1989 method does not allow for the removal of moisture by air movement however the standard suggests some indication of the effect of vented cavities can be obtained by assuming the air in the cavity is at outside conditions This can done by setting to zero the vapour resistances of the materi
63. u can either use the template as is without modifying it or use it as a starting point to produce your own calculation but whichever route you chose the calculation process will be quicker There are three types of R value template e standard templates for roofs walls and floors These are generic calculations which can be adapted by changing materials and thicknesses They are supplied with the program CHAPTER 1 JPA DESIGNER BASICS 14 e manufacturers templates A number of construction product manufacturers have supplied R value templates for typical constructions featuring their products The templates are supplied with the program e user defined templates These are calculations which you have previously per formed and then saved as a template enabling you to build up a library of com monly used calculations See for instructions Inserting a U value calculation from a template The controls for inserting R value calculations based on templates are at the bottom of the Project Manager window Figure 1 11 To insert a new R value calculation based on a template Category Standard w Venues Standard Roof warm Hat New U value from Template Figure 1 11 The template selection controls 1 In the Categories list select the type of template you want That may be a manufac turer s category one of the default categories or a template group you have created previously 2 In the Templates drop down li

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