No. Water can pass through grout lines, joints and small defects. A specified membrane beneath the tiled finish protects moisture-sensitive backgrounds.
Waterproofing Systems for Showers and Wet Rooms
Tiles and grout are not a complete waterproofing layer on their own. Tanking kits create a continuous membrane beneath the finish in showers, wet rooms and other frequently wet bathroom areas. Browse MacBlair's wider bathroom range when planning the full project.
A typical kit combines a liquid waterproofing membrane with reinforcing tape for corners, changes of plane and junctions. Check that the chosen system is approved for the wall or floor substrate, adhesive and final covering. Surfaces must be stable, clean and prepared as the manufacturer specifies.
Treat internal corners, pipe penetrations, wastes and board joints before coating the main area. Apply the required number and thickness of coats without pinholes, then allow the stated drying time before tiling. Coverage varies with surface texture and coat thickness, so calculate the area before buying.
Coordinate the membrane with the tray, screen and water outlets rather than treating it as a separate task. Explore showers and enclosures, baths and the plumbing equipment range for adjoining products.
Tanking Kits FAQ's
This depends on the product. Common backgrounds may include prepared plasterboard, cement boards, renders and screeds, but the manufacturer must approve the substrate.
Use the drying time stated for the specific membrane and site conditions. Temperature, humidity, substrate and coat thickness can all affect readiness.
They usually need the system's specified tape, collars or reinforcement because movement and changes of plane make these areas more vulnerable.
Measure the full wall and floor area to be coated, allow for the required coats and compare that figure with the manufacturer's stated coverage.