THERM Curtain Wall Condensation Models

99 views

Skip to first unread message

cb

unread,

Sep 1, 2022, 10:17:20 AM9/1/22

to THERM

Hello,

I have been running into a bit of a dilemma when it comes to modeling and running details for condensation (not the CR number) based on ASHRAE exterior BC and client specific interior BC. This will give us an associated dewpoint temperature which we then set an isotherm line to. My question/issue is to do with the non-continuous elements. According to NFRC elements greater than 1% are to be calculated with an effective conductivity for U-Value but I don't see much reference for condensation models. I did see that NFRC-500 Section 4.1 Subsection A states that CR # is calculated using the same model as the U-Factor.

For some of our details, the difference between passing or failing the dewpoint test comes down to how the non-continuous are modeled.

I would like to know, for condensation models (not CR #), should I be calculating this at full conductivity or the calculated non-continuous?

Reply all

Reply to author

Forward

0 new messages