Thermal Bridging Calculation
Here is a .pdf of the revised thermal bridge tutorial, originally presented at PH Conference US 2009 in Urbana. Updated Nov 29 2009. The supporting files below are updated as well.
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Here is an excel template to calculate bridges from the tutorial. The values currently in the worksheet are from the PH Conference tutorial. Make this a new tab in your PHPP file, and reference the thermal bridge coefficients in this tab for the psi-value inputs in the Areas sheet. This way, changes you make to the thermal bridge calculations will automatically update.
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Here are the THERM files from the tutorial. When you download them, they might open as text in another window, and you might not be allowed to save with the .thm extension. Just save however you can, and then after that you can change the file extension to .thm. Note that the boundary conditions don't seem to update - you will need to re-assign them as per the guidelines in the tutorial.
Full section
Clear wall
Clear slab
How to calculate PHPP window inputs from NFRC values
Thanks to Stephen Thwaits for pushing the thinking on this. Download here.