Terrace
WaterproofingSEAL · REINFORCE · PROTECT
A seamless, liquid-applied membrane system for exposed terraces and rooftops — a reinforced, crack-bridging elastomeric film over a primed, sloped deck, protected by a wearing course to stop leakage, dampness and seepage permanently.
What is Terrace Waterproofing?
Terrace waterproofing is a seamless, liquid-applied membrane system that seals an exposed roof or terrace deck against rainwater, dampness and seepage. A reinforced, crack-bridging elastomeric membrane is built up over a primed, correctly sloped substrate and protected by a wearing course, forming one continuous, jointless film. With no overlaps or seams for water to find, it stops the slow leaks, ceiling stains and structural damage that originate on the terrace above — and is engineered to flex with the thermal movement an exposed roof experiences daily.
How the System Is Built
A terrace membrane is built up coat-by-coat over a sound, sloped deck, reinforced where leaks usually begin. Tap any layer to see its role.
Protective Wearing Course
Over the cured membrane a protective screed or UV-stable top coat is applied to shield the waterproofing from foot traffic, thermal shock and sunlight — extending the service life of an exposed terrace. System values: Per TDS.
Engineered & Installed by POLYZEN
Terrace waterproofing is delivered as a POLYZEN Applied System — surveyed, designed and installed turnkey by POLYZEN's trained applicators, with membrane type, reinforcement and protective course specified to your roof's condition and exposure.
Built to Stay Watertight
A terrace is the most weather-exposed surface of a building — baked by sun, soaked by rain and constantly expanding and contracting. POLYZEN's membrane system is engineered for exactly those conditions. Performance is confirmed on the project specification.
Membrane type, dry-film thickness and protective course are specified per roof condition and exposure. POLYZEN confirms finished values on the project specification and does not publish fabricated figures.
The Application Process
Inspect & Assess
Leak survey, slope and drainage check, moisture testing and review of existing finishes.
Prepare & Repair
Clean the deck, repair cracks and honeycombing, correct falls, treat drains and upstands, then prime.
Reinforce & Apply
Reinforced base coat with fibre-mesh at junctions → top membrane coat to full thickness → cure.
Test & Handover
Flood / ponding test, protective course, final inspection and written warranty.
System Specifications
| Property | Detail |
|---|---|
| System Type | Terrace Waterproofing (Exposed Roof / Deck) |
| Delivery | POLYZEN Applied System (turnkey) |
| Membrane Type | Liquid-applied elastomeric (PU / acrylic) |
| Reinforcement | Fibre-mesh at junctions, drains & upstands |
| Build-Up | Primer + Reinforced Base Coat + Top Coat + Protective Course |
| Surface | Seamless · Jointless · Crack-Bridging |
| Exposure | UV-stable / screed-protected |
| Total Thickness (DFT) | Per Project Specification |
Ideal Applications
Download Technical Data
Applied & Warranted
Every POLYZEN terrace waterproofing system is installed by trained applicators and handed over after a flood/ponding test, a final inspection and a written system warranty. Warranty terms are confirmed per project scope, substrate condition and exposure.
Frequently Asked Questions
Related Waterproofing Systems
Stop the Leak at the Source.
Get a leak diagnosis, system recommendation and quote for your terrace.