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We have 2x4 wood studs which are spaced 16-inches on center. There's a layer of 3/8" gypsum board on each side, plus on one side there's 1 layer of 3/8" plywood (douglas fir).
How do I determine the fire resistance rating of this partition assembly? Posted anonymously for discussion. Discuss This | Submit Your Question | Subscribe
5 Comments
Brian M.
11/12/2019 12:20:57 pm
Reference: 5th Edition SFPE Handbook of Fire Protection Engineering pg 1981. 11/12/2019 01:02:45 pm
Why each side has different FRR? why the side with plywood got higher FRR?
In non-legal jargon, a fire starting in the room with the plywood has to burn through the 5 minute plywood before getting to the 40 minute wall. The fire takes 45 minutes to burn through before hitting flammable material.
Back in the early 1980s the Dept. of Housing and Urban Development (HUD) published their Fire Ratings for Archaic Materials Guide: https://www.huduser.gov/Publications/PDF/fire.pdf.
Fahim Foysal Rifat
2/27/2022 02:58:32 am
What is FRR (2H2M)? Leave a Reply. |
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