How To Waterproof A Shower Floor

Backup waterproof layer under mud and behind the board.

How to waterproof a shower floor.

Cut the waterproof membrane into lengths of the bathroom walls. Waterproof the seams along the base of the shower walls where the walls meet the shower pan. Lay the membrane down so that half is on the wall and the other half on the bathroom floor covering the crack. These are just a few of our recommended tips and tricks when preparing to waterproof a shower.

Spread mortar around the opening of the drain hole then press the floor drain into place. Embed a thin fiberglass mesh into the membrane for changes of plane and for gaps 1 8 or greater for the best performance. To stick the membrane down use either a paint roller or brush to paint over it with the waterproofing agent. To fully waterproof the room apply primer to the walls as well up to about half a foot from the floor.

If water gets through this you are going to have a problem. Use a plumber s pan and drain to encapsulate the shower floor. Scutching hammer optional or bolster to remove any tile and or tile adhesive remains. If you are waterproofing a shower recess apply primer at least 6 feet up the wall.

The idea is to create a watertight seal around the stall that will keep draining water from leaking into the tiny crevices around the wall joints and floorboards and causing rot and other structural issues. Ensure the entirety of the room has a smooth even layer of primer. Mica hardware has you covered with our how to on waterproofing your shower. Spread mortar and press in continuous strips of waterproof membrane.

This is the last line of defense. Tal superflex1 membrane. To assure a continuous film with no voids on the floor apply a second coat over the first. You have to mop up the floor every time you hop out of the shower.

It may sound funny but waterproofing is a crucial first step when installing a new shower.