Fire or Draft Stop


  #1  
Old 08-14-04, 09:35 AM
aarohm
Visiting Guest
Posts: n/a
Fire or Draft Stop

Code requires a firestop or draftstop behind the new stud walls in my basement (along the perimeter). However, although I think I know where it go, I am having a difficult time locating a good description on where it actually goes or what materials can be used. I had one set of plans that call for R-30 to be used and others to use 1/2 sheet rock or 3/4 plywood. I would rather go with the insulation

Thank you
 
  #2  
Old 08-14-04, 02:20 PM
Ed Imeduc's Avatar
Member
Join Date: Aug 2002
Location: Mountain Williams Missouri
Posts: 17,505
Upvotes: 0
Received 1 Upvote on 1 Post
Wink

I would go and ask code just what they want and how. That is by far the best way to do it. I like insulation but that R 30 you said dont .Cause it can just melt out so I would not go that way at all.

ED
 
  #3  
Old 08-14-04, 04:59 PM
H
Banned. Rule And/Or Policy Violation
Join Date: Jul 2004
Posts: 412
Upvotes: 0
Received 0 Upvotes on 0 Posts
Firestopping and Draftstopping are different things

Originally Posted by aarohm
Code requires a firestop or draftstop behind the new stud walls in my basement (along the perimeter). However, although I think I know where it go, I am having a difficult time locating a good description on where it actually goes or what materials can be used. I had one set of plans that call for R-30 to be used and others to use 1/2 sheet rock or 3/4 plywood. I would rather go with the insulation

Thank you
Under Building codes, firesblocking and draftstopping are two different things.

It would help us to know in what State you live so at least to tell us under what State code you operate.

That said, for framed basement walls, fireblocking is required at the top of framed walls where they meet the joists. The spaces between the joists usually need to be fitted with solid block 2xs to fit the joists tightly.

For conduits, wiring, cables, ducts, chases, etc...fireblocking can be done with compacted fiberglass insulation (no paper facing ) OR expandable foam insulation manufactured after Jamuary 2004 (for fireproof effectiveness).

Draftstopping only refers to breaking up large open areas such as above suspended ceilings so that not only can air exchange be made more effective but also that firestopping can be too.

For fireblocking see section in the 2003 IRC code: R602.8

For draftstopping see: R502.12
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: