Who bathroom waterproofing in Perth suits
Bathroom waterproofing in Perth means laying a membrane over the floor and wall surfaces of a wet area once the old tiles are off or the new walls are up, and before tiling starts. It suits renovations, rebuilds after a leak and brand new bathrooms.
What a finished, compliant wet area looks like
Once the job is done, the membrane forms one unbroken layer across the treated floor and up the walls where water reaches, sealed at corners, junctions, the floor waste and pipe penetrations. Tiles then go over it, and water heads to the drain instead of soaking into the slab or framing.
Bathroom zones, membrane and standards
Which floor and wall areas get treated depends on the shower, bath and layout. NCC 2022 sets the performance requirements for house wet areas, met through the deemed-to-satisfy route, a performance solution or a mix of the two. AS 3740 is the published wet area standard, and membranes used under the Housing Provisions must comply with AS/NZS 4858.
Membrane cure time before tiling
Each coat has to cure before the next one goes on, and the complete system must cure before screed or tiles cover it. Drying time shifts with the product, coat thickness, temperature and humidity, so a cool, damp Perth winter can stretch it. Ask which product is planned and what curing time its maker specifies.
Tiler or waterproofer: making the decision
Some tilers apply the membrane themselves, while others bring in a separate waterproofer. Either arrangement can work. What counts is a compliant membrane, applied to the product directions, with written details of what went on. Any change to drainage or water supply pipework needs licensed professionals.
Paperwork to ask for at the end
On a bathroom job covered by the Home Building Contracts Act, expect the Notice for the Home Owner before you sign. The deposit is capped at 6.5%, and progress payments cover only work done or materials supplied. Written defect reports within four months of practical completion must be fixed free. Keep the membrane product name on file too.
Next step for your bathroom
Note which room it is (ensuite, main bathroom, laundry or toilet), how far the renovation has got, such as tiles stripped or new walls framed, and your suburb. Plans are not required. If you know the shower layout or whether the bath is staying, mention it, because that shapes which zones get treated.
What bathroom waterproofing can cover
Renovation bathroom waterproofing
After old tiles and bedding are removed, the surface is repaired and cleaned so the new membrane bonds to sound material.
New bathroom waterproofing
In new homes and extensions, membrane goes on once the walls, floor and plumbing rough-in are in place and before any tiles.
Laundry and toilet waterproofing
Smaller wet areas receive the treatment their layout calls for, often done in the same visit as the main bathroom.