Drywall installers use the floor as a guide to locate studs and electrical boxes.
Floor tiling to drywall.
The sheets are made from a water repellent gypsum core covered by water resistant paper.
When the wall is taped and sanded the marks on the subfloor serve as visual guides for locating the elements and cutting.
In sharp contrast cement backer board does not rot warp grow mold or deteriorate when subjected to water.
Tile adhesive is expected to hold the tile in place not just for years but for decades without fail.
How to properly tile over drywall.
Whether wall or floor tile that tile needs to thoroughly stick to its base surface demands placed on tile adhesive are both extensive and steep.
Many professional installers even recommend against using water or mold resistant drywall in high moisture areas.
Water resistant drywall is a good backer board choice behind sinks and other places where occasional splashing and high humidity could affect regular drywall.
First off the drywall to which you will be tiling over must be clean dry and in excellent condition.
If you want to update your kitchen or bathroom walls with tiles you don t have to remove existing painted.
How to tile over painted drywall.
Otherwise you do.
Thick 4 x 8 ft.
Like regular drywall it s found at most home centers in 1 2 in.
It must be easy to work with and it must adequately fill in gaps between the tile and the substrate.
Cement backer board is mainly used as a sub surface for tiling.
Regular drywall is not appropriate.
It cannot cure too fast.