WaterproofingResidential
Wet Area Waterproofing Inspection & Test Plan
ITP for internal wet area waterproofing in bathrooms, laundries and ensuites covering substrate preparation, membrane application, flood testing and junction details per AS 3740.
12 checklist items
3 hold points
1 witness points
Checklist Preview
Substrate Preparation
Requires sign-offP/F
Substrate clean, dry and free from contaminantsP/F
Internal corners rounded or filletedP/F
Penetrations prepped with puddle flangesP/F
Primer applied per manufacturer specificationMembrane Application
Requires sign-offP/F
Membrane product approved and within shelf lifeP/F
Wall membrane height per AS 3740 (min 150mm/1800mm) Hold
P/F
Floor membrane continuous to all junctionsP/F
Reinforcing band applied at junctions and cornersPhoto
P/F
Minimum 1.5mm DFT achieved Hold
Flood Testing
Requires sign-offP/F
24-hour flood test passed (no leaks detected) Hold Witness
P/F
All penetrations watertight✓
Flood test photographic evidence capturedPhoto
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