ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals

Topic Options
Rate This Topic
#34326 - 02/08/04 12:20 PM fire walls
seattleman Offline
Member
Registered: 02/01/04
Posts: 17
Loc: Seattle, WA, USA
What is a 1hr, 2hr, and 4hr fire wall. I always thought a 1 hr is 5/8 rock on each side of stud. I also was wondering how many electricians out there keep a copy of the uniform building code on hand or found it worth purchasing.
Top
Work Gear for Electricians and the Trades
#34327 - 02/08/04 12:40 PM Re: fire walls
Roger Offline
Member
Registered: 05/18/02
Posts: 1716
Loc: N.C.
Seattleman, there are literaly hundreds of different assemblies for these ratings.

Go here http://electrical-contractor.net/ubb/Forum18/HTML/000021.html

and try the link at the bottom, If you take the assembly listed on an architects drawing you can find how it's constructed on the UL page, or you could buy a set of the orange books.

Roger
Top
#34328 - 02/08/04 12:53 PM Re: fire walls
Ryan_J Offline
Moderator
Registered: 08/19/03
Posts: 1374
Loc: West Jordan, Utah, USA
First of all, it would not be wise to purchase the uniform buidling code, since nobody uses it anymore. A copy of the IBC might be more worthwhile, but it depends on your state.

There are many, many, many ways to create fire-resistance rated walls. The most common is (1 HR) 5/8 type X gypsum baord nailed on 7" O.C. with 6d cooler nails, joints staggered and treated. Two hour...same but two layers. Three hour...same but three layers. Four hour....masonry.

Again, these are just a couple of the hundreds of ways to achieve a rating.
_________________________
Ryan Jackson,
Salt Lake City
Top

Member Spotlight
Member Since: 02/23/13
Posts: 204
New in the Gallery:
SE cable question
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box


Who's Online
0 registered (), 48 Guests and 9 Spiders online.
Key: Admin, Global Mod, Mod
 
New in the Gallery:
SE cable question
 
Top Posters (30 Days)
Admin 47
HotLine1 43
gfretwell 19
Ruben Rocha 12
Trumpy 9
 
Newest Members
Freecrowder, clee512, Jdscott2005, FAIZAN, Regitest2

ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals