Waterproofing failures in Clyde bathrooms and what they cost
Why membrane defects are the most expensive thing to find late.
In short: A membrane defect found before tiling costs a morning. Found after, it costs the bathroom.
The membrane is the whole system
Everything else in a wet area is decoration. The membrane is what keeps water out of the frame.
Where it fails
Coverage short at wall junctions, bandage not integrated at corners, water stop angle finish inconsistent at the doorway.
Why timing decides cost
The membrane is covered by tile within days. After that, assessing it means removing the tiling.
What the standard says
AS 3740 covers waterproofing of domestic wet areas, alongside the NCC.
What we do not do
We do not flood test. That is intrusive and belongs to the waterproofer.
Written by the Owner Inspections team from inspections carried out in Clyde. Licensed building practitioners, Building & Plumbing Commission registration CDB-U 53425.


