Question-and-Answer Resource for the Building Energy Modeling Community
Get started with the Help page
Ask Your Question

How to choose Ashrae Baseline Envelope in equest

asked 2015-06-15 09:11:35 -0500

Yupeng's avatar

updated 2015-06-15 11:13:18 -0500

The Ashrae90.1 baseline model requirement for envelop is defined as assembly max U factors. But in equest, the U-value input option is only for lightweight constructions. So, if I use Layers input, how can I choose the correct materials of the layers in order to match the u factors of Ashrae 90.1 baseline model requirement?

edit retag flag offensive close merge delete

1 Answer

Sort by ยป oldest newest most voted

answered 2015-06-15 09:23:00 -0500

updated 2015-06-15 09:23:49 -0500

I recommend downloading the inputs developed by the Rocky Mountain Institute for modelling ASHRAE envelope constructions in eQUEST from this link. It's also worth checking out their page of energy modelling resources. Copy and paste the constructions into your .INP file, and modify the R-values until the U-value matches the required U-values from ASHRAE 90.1.

edit flag offensive delete link more


Just to follow up in a more general way, the U-value of any construction can usually be adjusted by changing the thickness of the insulation layers in the detailed edit mode. You can select the construction, click over to the layers window and adjust the thickness of the insulation.

Daniel's avatar Daniel  ( 2015-06-15 09:47:28 -0500 )edit

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Training Workshops


Question Tools

1 follower


Asked: 2015-06-15 09:11:35 -0500

Seen: 584 times

Last updated: Jun 15 '15