2007-09-22 07:52:39 · 6 answers · asked by Diane D 2 in Home & Garden ➔ Do It Yourself (DIY)
With all due respect to those who say it's not necessary, I think you're looking for trouble if you don't fill the seams with fiberglas mesh tape and flexible thinset mortar. No harm can come from it, and it can only help prevent problems. Also, if you're installing in a damp environment (bathroom, especially), cover the screw heads with some oil-based paint and let it dry for a day or more before putting the mortar on. I've seen cases where people didn't do that, and after a few years rust from the screw heads started to penetrate the top surface of the tile.
2007-09-22 15:31:13 · answer #1 · answered by Bill2006 2 · 0⤊ 0⤋
Taping Cement Board
2016-12-29 09:33:08 · answer #2 · answered by birchett 3 · 0⤊ 0⤋
With no offense meant to answer 1, Tape NEED NOT be applied to concrete backer board; for the purpose of tiling over. Thin set can be skimmed into the seams and screw holes.
Certainly the board should be flush at it's face with any adjacent.
If the house is wood frame; I suppose one might think that at some point it might shift; but we hope, not in our lifetime.
Steven Wolf
2007-09-22 10:30:24 · answer #3 · answered by DIY Doc 7 · 0⤊ 1⤋
No you don't have to but if there is a chance of movement of the panels, say on an outside installation where temp changes will cause expansion and contraction it may prevent cracking of the tiles at the seams.
2007-09-22 09:24:56 · answer #4 · answered by David G 2 · 0⤊ 1⤋
Yes, you'll use fiberglass mesh tape to tape the seams and a coating of thin-set mortar
2007-09-22 08:10:52 · answer #5 · answered by Richard 7 · 4⤊ 0⤋
Nope, thats an extra step that wouldn't hurt but isn't really necessary.
2007-09-22 11:14:12 · answer #6 · answered by Anonymous · 0⤊ 1⤋
No! When you install your tile it will cover the gaps. just push a lil extra mud in the cracks when your setting the tile.
2007-09-22 12:59:32 · answer #7 · answered by ender3113 3 · 0⤊ 1⤋