Firewall Question - General Discussion - Contractor Talk

Firewall Question

 
Thread Tools Search this Thread Display Modes
Old 02-22-2013, 11:15 AM   #1
Registered User
 
flach2222's Avatar
 
Trade: Remodeling
Join Date: Feb 2013
Posts: 7
Rewards Points: 16
Unhappy

Firewall Question


Hello,
Does anyone know the code for 5/8 firecode sheetrock between a store room (with access from outside through a garage door, but not even close to big enough for a car to be pulled in, about 10 feet deep) and a bathroom? The building inspector says I need a layer of 5/8 on both sides of the wall between the real garage. (Not 2 layers on the same side) This would be a big problem if I have to do the same thing between this bathroom & storeroom. I am converting an attached garage into a master suite, and I can't reach the building inspector.
Thanks,
Tom
flach2222 is offline  

Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. ContractorTalk.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task!

   

Advertisement

 

Old 02-22-2013, 04:12 PM   #2
Registered User
 
Ret1095's Avatar
 
Trade: Carpentry
Join Date: Feb 2013
Posts: 7
Rewards Points: 10

Re: Firewall Question


Is it in a house bussiness or apartment?

And what state are you in?

Advertisement

Ret1095 is offline  
Old 02-22-2013, 05:46 PM   #3
Tech Geek
 
WarriorWithWood's Avatar
 
Trade: Remodeling Guru
Join Date: Jun 2007
Location: Feasterville, Pa.
Posts: 2,630
Rewards Points: 1,354

Re: Firewall Question


2 layers on the same side will do the same thing (I'm assuming you don't want to hang rock in the bathroom). If he want's the airspace between layers install 1 layer and tape, then hat channel and another layer.
__________________
-Dennis
WarriorWithWood is offline  
Sponsored Links
Advertisement
 
Old 02-22-2013, 06:28 PM   #4
New Guy
 
Henn Drywall's Avatar
 
Trade: Drywall
Join Date: Dec 2012
Location: Jersey Shore, NJ
Posts: 28
Rewards Points: 25

Re: Firewall Question


You should be able to use shaftwall, and a layer of half inch.
Henn Drywall is offline  
Old 02-22-2013, 08:15 PM   #5
Registered User
 
flach2222's Avatar
 
Trade: Remodeling
Join Date: Feb 2013
Posts: 7
Rewards Points: 16

Re: Firewall Question


Thank you everyone, I finally got a hold of the inspector, and he said I only needed firecode drywall on one side. I like the high hat idea for the next time that comes up!
He said I couldn't double up one side. By the way, I am in NH and am not new to the forum, I just opened a new account because I forgot my user name & password!
Although I have been remodeling for 30 plus years, I find this forum very helpful & recommend it to a lot of people!
[email protected]
flach2222 is offline  
Old 02-22-2013, 08:17 PM   #6
Registered User
 
flach2222's Avatar
 
Trade: Remodeling
Join Date: Feb 2013
Posts: 7
Rewards Points: 16

Re: Firewall Question


P.S. Are you talking about elevator shaft drywall? We call it hernia board!
That is also a good alternative! Tom
flach2222 is offline  
Old 02-22-2013, 11:25 PM   #7
Tech Geek
 
WarriorWithWood's Avatar
 
Trade: Remodeling Guru
Join Date: Jun 2007
Location: Feasterville, Pa.
Posts: 2,630
Rewards Points: 1,354

Re: Firewall Question


I had to do a 2 hr. rating once and we only had access to one side (ceiling). We had to do 2 layers 5/8" (staggered joints), then hat channel, then 2 more layers 5/8".
__________________
-Dennis
WarriorWithWood is offline  
Old 02-23-2013, 10:36 PM   #8
Registered User
 
flach2222's Avatar
 
Trade: Remodeling
Join Date: Feb 2013
Posts: 7
Rewards Points: 16

Re: Firewall Question


Ouch! I hope it was T & M
flach2222 is offline  
Old 02-24-2013, 12:21 AM   #9
Pro
 
skillman's Avatar
 
Trade: General Contractor
Join Date: Sep 2011
Location: New York
Posts: 2,859
Rewards Points: 1,968

Re: Firewall Question


Quote:
Originally Posted by WarriorWithWood View Post
I had to do a 2 hr. rating once and we only had access to one side (ceiling). We had to do 2 layers 5/8" (staggered joints), then hat channel, then 2 more layers 5/8".
Did samething in pre-school on a job years back . Ceiling where crazy fire proof plus rottin cotton in joist bays .
skillman is offline  
Old 02-25-2013, 03:55 PM   #10
Pro
 
GCTony's Avatar
 
Trade: GC
Join Date: Oct 2012
Location: Virginia
Posts: 338
Rewards Points: 384

Re: Firewall Question


Quote:
Originally Posted by WarriorWithWood View Post
2 layers on the same side will do the same thing (I'm assuming you don't want to hang rock in the bathroom). If he want's the airspace between layers install 1 layer and tape, then hat channel and another layer.
Two layers on one side MAY not give you the same fire resistence rating as one layer on each side. It's all about UL testing. Studs size and type, insulation, stud spacing all are factors. The inspector should have specified what rating is required and not specify an air space. What an inspector wants and what is required are often two very different things. If one looks at the USG selector, it doesn't take an air space to get to one or even two hours.

http://www.usg.com/rc/system-catalog...g-en-SA100.pdf
GCTony is offline  
Old 02-25-2013, 04:00 PM   #11
Eater of sins.
 
ScipioAfricanus's Avatar
 
Trade: Designer/Drafter/General Contractor(again)
Join Date: Sep 2008
Location: Orange County, CA.
Posts: 4,001
Rewards Points: 1,808

Re: Firewall Question


Quote:
Originally Posted by skillman View Post
Did samething in pre-school on a job years back . Ceiling where crazy fire proof plus rottin cotton in joist bays .
Wow man, you were working in the trades when you were in preschool?
I started at about 14 years. You get me beat by a long shot.


Andy.
ScipioAfricanus is online now  
Old 02-25-2013, 04:24 PM   #12
Member
 
fugsly's Avatar
 
Trade: general
Join Date: Jan 2013
Location: chautauqua county
Posts: 64
Rewards Points: 71

Re: Firewall Question


If i remember correctly ithe irc does specifically spell out this system, and sadly the code even in the 2012 book is still half inch gwb with a solid core door of no less than inch and 3/8.
Yes soild wood is legal, self closers are just added in 2012.


Now reality is getting your ahj to agree with anything less than 5/8 type x .......

fugsly is offline  
Old 02-25-2013, 05:32 PM   #13
Pro
 
GCTony's Avatar
 
Trade: GC
Join Date: Oct 2012
Location: Virginia
Posts: 338
Rewards Points: 384

Re: Firewall Question


Quote:
Originally Posted by fugsly View Post
If i remember correctly ithe irc does specifically spell out this system, and sadly the code even in the 2012 book is still half inch gwb with a solid core door of no less than inch and 3/8.
Yes soild wood is legal, self closers are just added in 2012.


Now reality is getting your ahj to agree with anything less than 5/8 type x .......

Ya gotta train your inspectors. The inspectors that know us know we ALWAYS ask for a code reference or "I don't understand, show me in the book" It's getting to the point that most times we don't even have to ask anymore, they automatically put the code referance on the inspection ticket.
GCTony is offline  
Old 02-25-2013, 07:25 PM   #14
Registered User
 
flach2222's Avatar
 
Trade: Remodeling
Join Date: Feb 2013
Posts: 7
Rewards Points: 16

Re: Firewall Question


I like that, " I don't understand, show me the code book!"
I will definately use that!
flach2222 is offline  
Old 02-26-2013, 12:53 AM   #15
Pro
 
skillman's Avatar
 
Trade: General Contractor
Join Date: Sep 2011
Location: New York
Posts: 2,859
Rewards Points: 1,968

Re: Firewall Question


Quote:
Originally Posted by ScipioAfricanus

Wow man, you were working in the trades when you were in preschool?
I started at about 14 years. You get me beat by a long shot.

Andy.
Started to young in this great field of construction. . I worked to much instead of partying during school years .

Advertisement

skillman is offline  


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
New? Have A Question? Read This First. Seven-Delta-FortyOne General Discussion 55 01-20-2017 11:48 AM
I have a question about my truck loan VinylHanger Vehicles 23 06-08-2012 11:00 AM
Concrete repair question german Excavation & Site Work 22 05-17-2012 11:38 AM

Join Now... It's Fast and FREE!

I am a professional contractor
I am a DIY Homeowner
Drywall Talk is for
PROFESSIONAL CONTRACTORS ONLY!

At DrywallTalk.com we cater exlusivly to professional contractors who make their living as a contractor. Knowing that many homeowners and DIYers are looking for a community to call home, we've created www.DIYChatroom.com DIY Chatroom is full of helpful advices and perfect for DIY homeowners.

Redirecing in 10 seconds
No Thanks
terms of service

Already Have an Account?