[Equest-users] Metal frame walls

[Bishop, Bill via Equest-users]

Hi John,
Per ASHRAE 90.1, Table A9.2-2, with R-19 between 6” framing @ 24” O.C., effective R-Value is R-8.6 for the frame/batt layer. Then add the R-Values of the continuous layers to get the assembly R-Value.
Regards,
~Bill

William Bishop, PE, BEMP, BEAP, CEM, LEED AP | Pathfinder Engineers & Architects LLP
Senior Energy Engineer

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From: Equest-users [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of John Aulbach via Equest-users
Sent: Thursday, September 21, 2017 2:37 PM
To: Equest-users <equest-users at lists.onebuilding.org>
Subject: [Equest-users] Metal frame walls

Hi Gang:

Every once in a while, a model appears.

I have forgotten how to do a metal frame wall with infill batt insulation. The wall is a 2 x 6 @ 24" centers with 6" R-19 insulation. I also know that there is 4 " board insulation continuous across the steel.

Where can i go for the equivalent R-values?

Thanks in advance.

John Aulbach, PE
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