Are there any code requirements, or restrictions, to using spray-applied cementitious fireproofing on a steel structure in the space above the ceiling of a building when it is being used as a return air plenum?
Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe
8/29/2022 05:30:48 am
8/29/2022 09:58:58 am
I would be shocked that the EOR or Building Dept. would approve that the space above a ceiling be used as as a return air plenum. The environmental and health issues are so many. Start with insect & rodent feces.
Todd E Wyatt
8/29/2022 12:16:46 pm
Spray Applied Fireproofing (SFRM) increases the fire-resistive rating (FRR) of non-combustible building components including the primary structure. This is typically added to meet the building's Type of Construction requirements.
9/6/2022 08:07:26 am
I would make sure that the product is not a fiber-based product but always use cementitious fireproofing wherever there is a chance of air-movement across the surface.
Leave a Reply.
Subscribe and learn something new each day:
Top Feb 2023 Contributors
Get 100 Days of Free Sample Questions right to you!
PE PREP SERIES