Ground Floor Bathroom Waterproofing

Cut the waterproof membrane into lengths of the bathroom walls.

Ground floor bathroom waterproofing.

Before finish flooring is installed on top of a plywood subfloor you must waterproof the subfloor especially in a bathroom. When sealing the shower floor make sure that the waterproofing membrane completely covers the shower drain and ensure sufficient overlap between the sealing membranes. The step down from the shower to the floor must be waterproofed to a height of at least 100 mm. Behind the shower is breeding ground for mold mildew and rot.

The entire bathroom floor needs to be waterproofed if it s timber floor ing plywood or particleboard or if it is above the ground floor of the house however to provide the best insurance against water damage it is a good idea to go beyond these minimum requirements and ensure that all of the walls within the shower recess are waterproofed. Often the subfloor consists of plywood that is nailed or screwed to the construction floor. Lay the membrane down so that half is on the wall and the other half on the bathroom floor covering the crack. Bathroom walls must be waterproofed up to a height of 150 mm.

This will keep water droplets from reaching the wall material. To avoid leaks and excess moisture build up take care to waterproof your bathroom wall floor and ceiling. If the bathroom is not on the ground floor the entire bathroom floor must be waterproofed. The walls need to be waterproofed up to 150mm.

The easy to understand step by step waterproofing technique used by professi. If you do not waterproof the subfloor moisture can make its way under the subfloor and cause mold growth or other damage. If the bathroom floor is made of or contains wood or if the bathroom is on the second storey or higher the whole floor must be waterproofed. In the shower the whole floor must be waterproof and the shower walls should be waterproofed up to 1800mm.

To stick the membrane down use either a paint roller or brush to paint over it with the waterproofing agent.