Interior Waterproofing
Bathrooms & Showers
Continuous, low-odour waterproofing behind tile in bathrooms, showers and other interior wet areas.
Cementitious boardsConcretePrepared cementitious surfaces
Why this application fails
Where problems start
- Water bypasses tile and grout over time
- Movement cracks rigid, unbonded layers
- Penetrations and drains are under-detailed
- Corners and floor-to-wall junctions are missed
Conditions to evaluate
- Substrate (board type, concrete)
- Drainage and falls to the waste
- Movement and junctions
- Penetrations for fittings
Candidate system paths
Systems that commonly apply
Common substrates
Cementitious boardsConcretePrepared cementitious surfaces
Products used
Critical details
Where the work is won or lost
- Floor-to-wall coves
- Drains and wastes
- Pipe penetrations
- Thresholds and door zones
Specification checklist
What to confirm
- Substrate suitability for tiling
- Falls to the waste
- Reinforced corners and penetrations
- Compatibility with the tile adhesive
- Curing before tiling
Project example
Verified case study
A verified project example for this application will be published here once an authorized case study — with documented conditions, system and rights — is available. We do not publish unverified or illustrative projects.
FAQ
Bathrooms & Showers — common questions
Can tile be applied directly over the membrane?
Tileable, bonded membranes are used for wet areas; compatibility with the tile adhesive and cure before tiling are confirmed against the current product data.
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