It would be nice quality-of-life feature to someday add a ?framing + insulation? calculator to the detailed interface, but in the interim it?s not too bad to look up:
With 90.1-2007 open/at-hand:
? Table A9.2B details effective R-values for a layer of steel studs + batt layer, for a variety of spacing & framing dimensions.
? For wood framing, a parallel path calc can reference:
o R-1.25/in for two-by wood framing (See Table A9.4D if you are uncertain of actual lumber depth dimensions), and
o Table A9.4C to look up effective batt insulation when compressed into wood stud cavities for various dimensions.
I would expect these to line up very closely with the insulation+ framing layer the wizards generate. Opening a second instance of eQUEST to leverage the wizard dropdowns is an option I suppose, though I?m not sure if it will save you much time relative to tabbing a copy of 90.1.
~Nick
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Nick Caton, P.E., BEMP
Senior Energy Engineer
Regional Energy Engineering Manager
Energy and Sustainability Services
Schneider Electric
D 913.564.6361
M 785.410.3317
F 913.564.6380
E nicholas.caton at schneider-electric.com
15200 Santa Fe Trail Drive
Suite 204
Lenexa, KS 66219
United States
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Alternately, you can use the BC Hydro Building Envelope Thermal Bridging Guide. It was developed by Morrison Hirschfield using 3-D thermal modeling. It is very informative reading. Appendix A includes diagrams of all the constructions analyzed. Appendix B has the performance of all those constructions.
https://www.bchydro.com/powersmart/business/programs/new-construction.html#thermal
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Christopher R. Jones, P.Eng.
Technical Specialist
WSP Canada Inc.
2300 Yonge Street, Suite 2300
Toronto, ON M4P 1E4 Canada
T +1 416-644-0252
www.wspgroup.ca
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