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Old 03-01-2006, 10:03 AM   #1
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Black Goo for wiring


When I had my dormer done last year, the holes where the wiring ran through the framming were "caulked" with some black goo. I'm assuming it is for code.
What is this stuff ? Is this available at Lowes/Home Depot ?...never looked
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Scott

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Old 03-01-2006, 04:16 PM   #2
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Black Goo for wiring


Possibly black plastic roofing cement for a waterproof seal. It comes in all size cans from pints to 5-gallons. Very sticky stuff, and it can seal in the rain, wet or dry.
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Old 03-02-2006, 05:38 PM   #3
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Black Goo for wiring


If the holes were in top or bottom plates it should have been fire stop caulk. The stuff I have seen is usually reddish color. It prevents fire in the wall cavity from escaping and spreading to the attic.
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Old 03-02-2006, 06:24 PM   #4
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Black Goo for wiring


Joed is right. I was wrong.
But like Joed, the fire stop stuff that I've seen is reddish, not black, but that may be another kind. Call the electrician that installed the wiring to find out.
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Old 03-03-2006, 10:25 AM   #5
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Black Goo for wiring


Thanks for the feedback. I talked to a fireman. He said that it's used for fire saftey. Helps to keep fires from breathing and spreading.
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