A terrace garden or podium is a layered assembly. The waterproofing membrane may be buried under screed, drainage layers, soil, planting and paving — so a leak can mean removing and rebuilding the landscape just to reach the source. The right sequence, detailing and testing before the layers are covered matter as much as the materials themselves.
The waterproofing layers protect the structural slab and the occupied spaces below from water penetration.
Slope, drainage boards, geotextile and accessible outlets help prevent water from remaining trapped within the build-up.
Upstands, movement joints, planter walls, pipe penetrations and outlets should be identified and treated before landscaping begins.
Waterproofing should be inspected and tested while it is still accessible, before protection and landscape layers hide it.
A planned sequence of preparation, repair, two waterproofing layers and drainage protection. Each stage must be completed before the next layer conceals it.
Each layer has a distinct role. The final selection and installation details are confirmed for the actual podium, substrate, drainage design and landscape above.
A ready-to-use, cold-applied, single-component elastomeric liquid membrane that forms a seamless, flexible protective film.
A flexible polymer-modified mineral slurry used as the second waterproofing layer in the specified WBI podium build-up.
Used to repair honeycombing, larger voids and damaged concrete after all unsound material has been removed.
A project-specified 25–40 mm PCC layer to establish the required slope and guide water towards the drainage outlets.
Used in the specified membrane and drainage build-up. Its placement and laps should follow the approved system details.
Installed above the waterproofing build-up to help drain water at the landscape level. Outlets must remain serviceable and accessible for maintenance.
Request a site assessment to review the substrate, slope, joints, penetrations, drainage outlets and waterproofing sequence before the build-up is covered.
Request a Podium Site InspectionWeatherblazer Knowledge & Expertise
Review the waterproofing sequence, drainage details and testing requirements before the landscape build-up conceals the membrane.
