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Old 02-16-2011, 11:40 PM   #1
Feb 2009
Posts: 149
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hey guys, I have my brewing setup in my partially finished garage. I love the ease of use of brewing with a cement floor, but with lots of spills and a hose spraying sometimes it gets pretty water logged on the floor. This has led to a slight issue with mold growing along the bottom of the wall where the drywall and molding meet the cement. This is obviously from water getting under, and sitting under the walls. My Question for you is what can i do to "splash" proof my walls? i want to cut out the old wall board that is moldy, i was thinking i could replace it with standard dry wall and put some sort of water proof cover over the wall such as something made out of the same material as a bath tub, i really have no idea to go about doing this. Any ideas?

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Old 02-17-2011, 12:10 AM   #2
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Jan 2011
East Bay, NoR-CaL
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Dry Erase board.

Its cheap and they sell it at Home Depot. Its easy to clean up and you can take notes on it.
*Put up the Sheetrock and paint
*Use Liquid nails to hold the board on to the wall and drill in 4 corners
*You can put it up to waist high with a trim to make it functional or floor to ceiling to make it a note-board as well.

Works like a charm and should last YEARS!
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Old 02-17-2011, 12:14 AM   #3
Nov 2010
cleveland, ohio
Posts: 242

There is drywall out there, I believe called greenboard that is designed to tolerate more moisture. Also, I would use a wall covering similar to what you might see in a restaurant kitchen or bathroom. I can't think of the name of it, but it is usually sold in 4x8 plastic sheets.

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Old 02-17-2011, 12:56 AM   #4
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Jan 2011
Antioch, IL
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You can either use greenboard which is drywall with a special paper on it or cement board which is a cement product. I would go with cement board as it is superior for water repellent.

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Old 02-17-2011, 01:13 AM   #5
Dec 2009
Largo, FL
Posts: 34
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Cover the area you want to waterproof with FRP (Fiberglass Reinforced Paneling) and caulk the seams, cover with plastic trim, and voila, waterproof wall. That's the way a lot of bars do it. If you want to get away from drywall, you can always use Wonderboard.

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Old 02-17-2011, 01:14 AM   #6
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Aug 2006
Whitehouse Station, NJ
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Don't mean to be such a dissenter, but cement board isn't water repellent. Installations using it still require a vapor barrier behind it. Greenboard is also just moisture tolerant but it really shouldn't get wet.

How high up does the mold go? If it's just like a surface coating you can brush some bleach water on there and then run a fan to dry it really well.

They make a thin white plastic wall board for laminating the interior of cold rooms and laundry rooms that would work well in this case. The key is to put a good bead of 100% silicone caulk at the floor joint.
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Old 02-17-2011, 01:17 AM   #7
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May 2006
Adams, MA
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I'm not sure greenboard is really even moisture resistant, really just humidity resistant. The cement board, too, it's good for tiling because it'll stay together even if it gets wet, but it's going to absorb a lot of moisture.
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Old 02-17-2011, 01:32 AM   #8
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Jan 2011
frederick, md
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Originally Posted by edkittley
Cover the area you want to waterproof with FRP (Fiberglass Reinforced Paneling) and caulk the seams, cover with plastic trim, and voila, waterproof wall. That's the way a lot of bars do it. If you want to get away from drywall, you can always use Wonderboard.
This is exactly what u want. Frp is great and u can get it at homedepot or lowes. U have to get all Componets with it amd use the correct glue right over drywall. Green board or purple(moisture,mold,mildew) resistance ive installed in dishrooms for restuarants caulk at the flr. Good luck with ur project. Frp by the way is 15$ a sheet 4x8 the glue is where is gets a little more money.
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Old 02-17-2011, 01:41 AM   #9
Jun 2010
Edmonton Ky
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If I was going to do it on the cheap, I would paint the walls and baseboard with gloss latex paint and then caulk the baseboard

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Old 02-17-2011, 02:07 AM   #10
Nov 2010
Posts: 216

+1 on the cement board, I really wouldn't call it a water repellent though.

You still don't want to get it wet. If it were me, I would put some cheap tile on it. You could go the route of FRP or sheet vinyl, just run that to the floor. Keep the the cement board or whatever you decide off the floor at least 1/2". If you go with FRP you could either run a rubber base or use a vinyl molding. Either way use silicone caulk behind it before installing and run bead along the gap at the floor.

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