JPA Designer calculates the risk of interstitial condensation forming at the interfaces of layers within an element; it calculates the thermal transmittance of building elements in order to predict the rate of conduction heat loss through the element. Calculations can be produced for walls, roofs, floors, lightweight steel framed elements, ground floors and basements.

JPA Designer enables Architects, Designers and Developers the ability to check the construction for condensation and 'design out'  problems at an early stage. It enables Manufacturer's the sales opportunity to provide customers with problem-free, high performance calculations incorporating their materials.

JPA Designer makes calculations straight-forward, with construction elements built-up layer by layer; a process made easier by the comprehensive database of generic and branded materials. The module also include a 'variable layer' feature which makes it easy to compare the effect of design changes on the thermal performance. The module performs interstitial condensation risk analysis to ISO 13788 and BS 5250.

JPA Designer calculates R-values for Australian Regulations, with different values for heat flow inside to outside and outside to inside.

For each interface within a building element the module determines:
1) the amount of condensation or evaporation during each month;
2) the maximum amount of moisture deposited;
3) the accumulated mass of water compared to total evaporation during the year;
4) the annual moisture balance.

Calculations are produced in a series of simple and logical steps:

1) Projects are added, deleted, duplicated, merged and named at the Project Window
2) The construction type and details are selected
3) Project and client address is added
4) Environmental conditions (the location of the building) is selected
5) Construction elements are built up layer by layer
6) Generic or branded materials can be added from the included Products Database

JPA Designer presents the results of condensation risk analysis in three formats:

1) as month by month data, in the ISO Condensation Table
2) as a graph, in the Dewpoint graph
3) in summary form, in the Results table

The end result is a PDF or hard copy printout. An example can be downloaded by clicking on the image left.