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Johnathan
New backsplash over beadboard?
Johnathan

My wife and I want to replace our existing backsplash with a new one. The old backsplash was put up directly over the original beadboard on the walls. Some time in the past, the tiles behind the sink began to come off and we assume that if we put new tiles up over the beadboard that we run the risk of the same thing happening again.

We are going to remove all of the existing tiles, and once we do, we are unsure about what we should put up before we start installing the new tile. We cannot remove the beadboard because the cabinets are installed over it. We could cut it away but do not want to take on that large of a project and feel it is probably unnecessary.

What is the best surface/membrane/material to put up prior to installing the new backsplash tile that will ensure good adhesion and a long and productive life?

Thanks!

A. Spruce
Re: New backsplash over beadboard?
A. Spruce

Generally, tile adhesion failure is due to moisture getting behind the tile, most likely through failed grout lines that were either never repaired or repaired improperly.

Today's tile glue should be sufficient, however, a more permanent solution would be to use a "mud bed" with mortar set tile. In this method, wire mesh is stapled to the surface, then a mortar bed is applied, then the tile is installed. The result is a significantly stronger and more durable system than direct gluing.

dj1
Re: New backsplash over beadboard?
dj1

Tiles stick well to CBU (cement board unit - a cement based surface), and the order is: Moisture barrier, CBU attached to the studs with rustproof screws, then tiles.

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