[Equest-users] Modelling multilayer thick wall in eQUEST

Chris Baker CBaker at cci-alliance.com
Thu May 15 10:53:27 PDT 2014

The easiest way to do this I think is in the DD wizard.  I have a big wall buildup also - similar at least.

First of all, remember if you have multiple kinds of exterior wall buildup you want to draw separate shells for those areas.  For example, my current project has a part of the building that is 2X6 exterior walls because it was added later on to a 8" cmu exterior wall building.

The shells just get drawn separately and you can specify the layup in the design development wizard for each.

The easiest way to do this, from what I've seen, is to first calculate the R-value of the system and any EIFS layers you may have added.

When you specify the exterior walls in the design development wizard show your construction (CMU, 2x6, whatever it is)  and get as close as the wizard will let you to the actual wall system.

Then you need to make sure the R-rating of the final wall system in equest is the same or similar to the R-rating of the wall you have at your building.  This will make sure that the energy simulations are at least in the ballpark- based on overall construction type and R-value.

The same will work for Roof construction too.  Get as close as you can to the actual roof layup in the wizard.  Then get close to what the R-value is for the foam.

If the R-value of the system is more than what you can see in the insulation dropdown menus, just add "additional insulation" and use that dropdown menu to add more.

This is all done on Sheet 3 of the design development wizard.

On sheet 4 is Your vertical wall construction type/ insulation and ceiling finish & insulation so don't forget about that either.  Remember to show any insulation here that you may have at ceiling level.

Chris Baker
CCI CAD Drafter
Fort Wainwright, Alaska

From: Equest-users [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Prasad S Wani
Sent: Sunday, May 11, 2014 10:22 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Modelling multilayer thick wall in eQUEST

Dear All,

Can anybody please tell how to model multilayer wall (thick concrete+ air gap +thick concrete + other materials ) in eQUEST ?
I tried eQUEST option of layered construction, but error occurs "Wall is too thick".
Is there any other method to model it ?
Thank you in advance.


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