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Old 07-20-2008, 07:28 PM   #1
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NOW I'm confused!


i'm getting conflicting answers here, i need to fill the holes in the floor i drilled to run wires, one guy says caulk is ok, another says there's a special draftstop product. what is it and where do i have to go to get it? this inspector WILL hit me if i don't get it right.
tnkx! DM

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Old 07-20-2008, 07:41 PM   #2
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NOW I'm confused!


Is this inside of a wall? If you need to maintain a fire stop, you should use something like this:
http://contractorservices.homedepot....3-a74473812da4


Last edited by jerryh3; 07-20-2008 at 07:43 PM.
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Old 07-20-2008, 07:56 PM   #3
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NOW I'm confused!


not firestop, just air flow from crawl space to inner walls above
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Old 07-20-2008, 07:57 PM   #4
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and the link did not work... lol just not my day
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Old 07-20-2008, 08:23 PM   #5
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NOW I'm confused!


Try this link:
http://solutions.3m.com/wps/portal/3...glZCBZZT4NCJbl
If it's just air penetration you should be able to use caulk or spray foam. Just check the label for interactions with wires or pipes.

Last edited by jerryh3; 07-20-2008 at 09:05 PM.
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Old 07-20-2008, 08:35 PM   #6
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Why not just call your inspector and ask him what he expects to see? If it's just for airtightness/keeping critters out, the spray foam is IMO the way to go. Use the Dap product instead of the Greatstuff; it's water based so it cleans up easy.
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Old 07-20-2008, 08:48 PM   #7
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NOW I'm confused!


You should use a fire rated caulk... or FR drywall compound.,,,

The idea is to isolate the smoke, air , heat and flames from traveling through the wall cavities and into the attic area. penetrations at wires and pipes, etc.

Build safe.....

jerryh3 is on track....
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Old 07-20-2008, 09:02 PM   #8
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You need to check with local codes, In my area we use the IRC, International Residential Code. So, the intergrity of all firestops, fireblocks and draftstops must be maintained.
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Old 07-20-2008, 09:13 PM   #9
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Quote:
Originally Posted by chris75 View Post
You need to check with local codes, In my area we use the IRC, International Residential Code. So, the intergrity of all firestops, fireblocks and draftstops must be maintained.
This is what I'm held to as well which is why I usually say, "when in doubt, call the inspector."
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Old 07-21-2008, 03:45 PM   #10
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NOW I'm confused!


thanks for all the input, i think i need to go with a fire rated caulk soooo, does anyone have a brand name? my wife needs to stop on the way home and pick it up as we live in the sticks. i need to tell her exactly what to get or she'll come home with another mule.
thanks again!

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Old 07-21-2008, 04:41 PM   #11
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3-M Fire Dam 150+ is what we use.

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