The tool may be used to investigate:
- Changing overall window/door areas
- Changing the size of individual windows and doors.
- The benefits of increasing insulation R-value
- Changing glazing type
- Eliminating unnecessary framing elements
The tool also produces a visual representation of the heat flow like what is seen with a thermal imaging camera.
The downloadable ZIP file contains is a ReadMe file and 3 excel spreadsheets. Please follow the instructions provided within the ReadMe file.
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Thermal Bridging Calculation Tool
Determines thermal performance of cavity insulated timber framed walls. May be used to determine the steady state R-value (U-value) and compare results with a simple one-dimensional isothermal plane calculation for the same relative framing ratio.
Download [ZIP, 26.2MB]
The basis of the tool is 3D finite element pre-modelling using 650 mm x 650 mm face areas represented by a grid of 13 x 13 cells with size 50 mm x 50 mm. These parts are then joined as sections of wall which can be added together to create a complete length of wall for analysis.
If you have any feedback or questions, please call Ian Cox-Smith 04 237 1170.