what to do with poly hanging out from drywall?


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Old 07-21-07, 10:11 PM
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what to do with poly hanging out from drywall?

Hi Folks!

I am attempting a DIY tiling surround. The tub was never pulled out.

I had a drywaller come in and do the drywall, but he left about 3 feet of poly hanging out. He told me just to cut it when I was ready to tile. So far I have been told 3 different things.

Also do I caulk the drywall where it meets the tub?

Hope I have explained my situation well enough!

Appreciate any help. Thank You!
 
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Old 07-22-07, 05:03 AM
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Welcome to the diy forums!

Not sure if I understand about the poly, is this the vapor barrier on an exterior wall?

You would caulk the drywall and the tile where it meets the tub.

Did you use drywall or cement board under the tile tub surround?
 
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Old 07-22-07, 11:25 AM
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Hi marksr! Thanks for the reply. Yes the vapor barrier. It is hanging out where the green aqua board meets the tub. It is on two sides. Exterior wall and an interior wall.

There is about three feet just hanging in the tub. The drywaller said to cut it and caulk...should have asked him more questions...caulk what and where? I was told by others that poly had to be sealed (taped or caulked) but to what I do not know. Also that the poly should have gone right to the floor.

I have tried to get in touch with the drywaller but no luck!

Thanks again! Dreanne tryhardhandy
 
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Old 07-22-07, 03:18 PM
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He left the poly hanging to protect the tub when the drywall was finished. Marksr asked, but you didn't say....did they install drywall or concrete backer underlayment for your future tile job. If sheetrock, it won't work. Tiling requires cbu installation to give a solid substrate for your tile.
 
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Old 07-23-07, 06:33 AM
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Originally Posted by tryhardhandy
It is hanging out where the green aqua board meets the tub.
Green aqua board = drywall, not concrete nor cement. Thanks!
 
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Old 07-23-07, 10:48 AM
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The green moisture resistant drywall is not a good surface to lay tile on!
Years ago it was used when someone couldn't afford or was too cheap to pay for a mud wall. Today everyone uses cement board which is comparable in cost to drywall AND A MUCH BETTER SUBSTRATE to attach the tile to. The problem with using green board, even though it is moisture resistant, it will disengrate when it gets wet and the tile job will suffer.

Cement board comes in 3'x5' sheets and is easily put up. I'd recomend removing the drywall where you intend to tile around the tub and install cement board!
 
 

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