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Old 09-28-2011, 07:01 PM   #1
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Floor Drain Against Drywall


I have a floor drain in my attached garage. Three of the walls of the garage are on footings raised above garage floor, one is sitting right on grade of the garage floor (this wall is non loadbearing). The drywall on this wall touches the concrete floor. The floor drain happens to be installed about an inch away from this wall as this is the lowest point of the garage.

For minor spills, liquid flows right into the drain. However, for larger spills, fluid puddles around the drain as it slowly drains away. Thus soaking the drywall. What is the best way to resolve this?

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Old 09-28-2011, 07:10 PM   #2
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Floor Drain Against Drywall


First thing to do is to cut the drywall upward about 1/2" or more if know there is something more than a 2X4 behind it. Then seal the bottom cut edge of the drywall with a waterproofing. At that point the wall still needs some protect a little higher maybe. You could use liquid waterproofing or you could use ceramic tile, or you could maybe find a quality exterior paint, you could use plastic, you could use sheet metal. There are any number of ways to protect the drywall once the bottom of it is raised and protected.

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Old 09-28-2011, 09:12 PM   #3
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Floor Drain Against Drywall


^^ That advice sounds good

Maybe you could use the metal in a strip as a "baseboard" on that wall and caulk it at the floor? Wouldn't look too terrible
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Old 09-29-2011, 12:33 PM   #4
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Floor Drain Against Drywall


Quote:
Originally Posted by Bud Cline
First thing to do is to cut the drywall upward about 1/2" or more if know there is something more than a 2X4 behind it. Then seal the bottom cut edge of the drywall with a waterproofing. At that point the wall still needs some protect a little higher maybe. You could use liquid waterproofing...
It is pressure treated 2x4 behind there. What kind of waterproofing do I use for the edge of the drywall? what kind if liquid waterproofing for the wall?

Last edited by acerunner; 09-29-2011 at 05:43 PM.
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Old 09-29-2011, 02:01 PM   #5
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Floor Drain Against Drywall


I would first use a quality exterior caulk and seal the opening and finger it upward onto the raw edge of the drywall. Then (after the caulk has skinned-over) a liquid waterproofing such as Redgard can be used to again seal over the caulk and up the wall a ways. Redgard can be purchased at Home Depot and it is found in the ceramic tile department.
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