[Equest-users] Equest-generated Construction Materials

[Dakota Kelley]

Ryan,

 

Your assumption is correct.  The layer you’re referring to represents the combined batt insulation and framing type specified in the wizard.  The layers shown in the detailed interface are continuous layers, so non-continuous constructions need to be converted to an equivalent continuous construction.

 

More specifically, eQUEST is applying the framing factors found in Standard 90.1 Table A9.2B.  For example, specifying metal 2x6 studs 24” OC with R-19 batt in the wizard would correspond to a “self-named” layer showing thermal resistance R-8.6 in the detailed interface.  You can locate this same conversion in Table A9.2B (page 105 of the 2004 edition).

 

Thanks,

                                

                         DAKOTA KELLEY                                                              

                                Project Designer

 

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dakotak at teliospc.com <mailto:dakotak at teliospc.com>              Dallas, TX 75204 

 

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From: Ryan Schmidt [mailto:RSchmidt at Horizon-Engineering.com] 
Sent: Tuesday, August 18, 2009 7:07 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Equest-generated Construction Materials

 

After the Wizard Mode is completed, construction layers are formed for the various external surfaces based on the designated insulation and construction types. What does the “self-named” material correspond to (such as material “E2 EWall Cons Mat 2 (0.91)”)? I would assume that depending on the framing or construction method, equest would generate a derating factor to account for discontinuities in insulation, etc. However the “self-named” material improves the overall u-value for the composition. What does this layer correspond to and can it be omitted when redefining the layers in Detail Mode? Thanks in advance for your help.

 

Ryan G. Schmidt

Horizon Engineering Associates, Field Engineer

rschmidt at horizon-engineering.com <mailto:rschmidt at horizon-engineering.com> 

704.523.5354 (t)

704.523.5347 (f)

252.622.9606 (m)

 

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