Wall and window THERm calculation to determine overall U value of the assembly

[ravneet gupta]

I need to understand how would the U factor tags be assigned in a wall and window cross section

to determine overall U value

to determine Thermal bridging due to the detail

[Jillian Burgess]

See Section 6.5.2(page 6-29) in the Therm manual, which can be downloaded here: NFRC THERM 6.3 / WINDOW 6.3 Simulation Manual
There is a full detailed explanation of how and where to assign U-factor tags to Boundary conditions.

[ravneet gupta]

I understand that . that section only addresses windows. When a cross section of window and wall is simulated in Therm , how are U factor tags assigned?

[Robin Mitchell]

You can create new U-factor tags to assign to any part of a model, such as different areas of a wall, etc. You are not limited to just Frame and Edge that are the defaults for window modeling. There is a U-factor Names Library where you can make new tags and assign them as you want. 

--
You can view the THERM forum online at: http://windows.lbl.gov/software/THERM/forum
---
You received this message because you are subscribed to the Google Groups "THERM" group.
To unsubscribe from this group and stop receiving emails from it, send an email to LBNL-THERM+...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

--

Robin Mitchell
Building Technology and Urban Systems Department
Environmental Energy Technologies Division
Lawrence Berkeley National Laboratory

[ravneet gupta]

Thanks for your response. I 'm attaching the therm file , which I have been working on. I have assigned the same U factor to the window and wall, to get the U factor the assembly, would that be the right approach? The boundary conditions for each surface is different.