I can’t find anywhere how detailed the thermal brides should be calculated in the model. In the simulation program I use you can use some default values or calculate the separately in every critical construction part. Do “LEED” have any claims about it? Is it ok to use the default values for your type of building/construction?
Thanks!
Lisa
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5915 thumbs up
August 9, 2010 - 5:24 pm
Specific and scattered thermal bridges are very difficult to model in a commercial building. Broad and general thermal bridges, like steel studs, should be modeled.
Determining the envelope U values in 90.1 should follow Appendix A. Quite often LEED projects report the U value directly through the insulation and do not de-rate these envelope components properly.