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-   -   1/4 or 1/2 backerboard (http://www.diychatroom.com/f15/1-4-1-2-backerboard-17552/)

GLASSMAN1 02-24-2008 10:25 AM

1/4 or 1/2 backerboard
 
feeling stupidier every day ha.i have 3/8 sheet rock in my hose.im redoing bathroom shower.i framed ,shimmed around shower pan so that everything would be flush on surrounding wall for 1/4 inch backerboard.now i found out you cant use that on walls.what could happen if i used 1/4 inch backerboard and do you think it would be ok to use it on one wall only that joins into existing 3/8 sheetrock and 1/2 inch on the rest.were wanting 3/8 tile.should i start over.thanks

End Grain 02-24-2008 10:29 AM

Backerboard is important for tiling a shower. Moisture-resistance, strength, tile weight, thinset adhesion, etc. But, if you have a pre-fabricated self-sealing shower enclosure, it can be affixed directly onto the studs with no actual drywall, backerboard, etc. as per the manufacturers' okey-dokey.

USP45 02-24-2008 10:33 AM

First off installing tiles over sheet rock especially in a moisture rich environment such as a shower is probably one of the biggest no-no's ever. The tiles will peel off. The framing for the shower should be the same size as the pan (Assuming it is a fiberglass pan) then you install Durock (cementiciouse board) so it comes down over the lip keeping it about 1/2" off the pan so as not to let the Durock be immersed in water if it should leak. Tile walls allowing tile to come down to pan. You really have no way to fasten anything 1/4" and expect it to stay more than a few years.

End Grain 02-24-2008 10:38 AM

GLASSMAN1, I misunderstood your reference to backerboard as cement board is commonly called that - perhaps erroneously - out here in AZ. Mea culpa. USP45 is 100% correct in the recommendation for the actual material you should ask for and use. And, his reasons are right on the money. Moisture-resistant drywall is called greensheet or greenboard out here.

GLASSMAN1 02-24-2008 11:01 AM

i have framed the studs so that they are flush with the inside lip of shower pan,also i have put studs were im going to screw the shower door to.the sheetrock is only on one side and its way above were any water is going to hit.the rest is being redone all the way to the ceiling.have you heard of anybody useing 1/4 inch backerboard around showers and was it strong enough to hold the tile?

jerryh3 02-24-2008 11:23 AM

Quote:

Originally Posted by GLASSMAN1 (Post 101130)
i have framed the studs so that they are flush with the inside lip of shower pan,also i have put studs were im going to screw the shower door to.the sheetrock is only on one side and its way above were any water is going to hit.the rest is being redone all the way to the ceiling.have you heard of anybody useing 1/4 inch backerboard around showers and was it strong enough to hold the tile?

1/4" will not be strong enough for wall tile. You'll need to use 1/2". What kind of backerboard are you going to use?

AtlanticWBConst. 02-24-2008 01:51 PM

Use 1/2" Cement board in your shower wall area.

Tear the shims out. That way, the difference will only be 1/8".

Make that up, by having the tile sit over the cement board just slightly, (where it meets the 3/8 S/R). Grout the 1/8" gap.

GLASSMAN1 02-24-2008 03:20 PM

im useing hardi backer board.thanks for information.i geuss we learn as we go .


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