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rocketdoctor 05-29-2009 05:49 PM

backsplash backerboard
 
I am installing a cement backboard for a tile backsplash in my kitchen. There are several holes I need to cut for electrical outlets. Whats the best way to cut these. Should I measure and cut all the holes out of one continous piece or because this is just backerboard that will be tiled over I can cut smaller pieces to fit around this?

Bob Mariani 05-29-2009 08:34 PM

First you did not need backerboard. But cut the holes from a larger sheet, not pieces. Since these seams need to be flush. And remember that the boxes will now need box extensions, since the backerboard plus thinset plus tile exceeds code limit for a recessed box.

rocketdoctor 05-30-2009 11:26 AM

Backing?
 
Quote:

Originally Posted by Bob Mariani (Post 280369)
First you did not need backerboard.

This is not clear to me, Right now there is drywall where backsplash goes are you saying I can tile directly to the drywall?

Ron6519 05-30-2009 12:13 PM

Quote:

Originally Posted by rocketdoctor (Post 280514)
This is not clear to me, Right now there is drywall where backsplash goes are you saying I can tile directly to the drywall?

Yes.
Ron

jordy3738 05-30-2009 09:50 PM

Yes, you can glue the tile to the drywall. I don't think I've ever seen a backboard put up before.

I take that back, I did see someone add 3/8" plywood over the drywall once but cannot recall what their reasoning was behind attaching that particular backer.

rocketdoctor 05-30-2009 10:34 PM

Thanks, the drywAll was painted will this be a problem?

Bob Mariani 05-31-2009 06:39 AM

no, but if the paint is very glossy, just rough it up a little


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