Everflex WPUV is a UV-resistant Class III elastomeric waterproofing membrane for exposed roofs, terraces, balconies and areas beneath pedestal deck systems. Its water-based, microfibre-reinforced formulation forms a seamless, flexible coating that can remain weather exposed in appropriately designed installations.
Choose WPUV where UV exposure is part of the waterproofing requirement. Unlike dedicated under-tile membranes such as Aqua-Ban or WPM, it can serve as the exposed waterproofing surface within the specified system. For applications where a thicker, more viscous application profile is preferred, compare Everflex HVUV.
Surface preparation and joint detailing are essential. Prime appropriately, seal corners and penetrations and reinforce moving joints as specified. Apply the required coats and check wet film thickness to achieve the specified dry film build; allow sufficient time before tiling or exposure to service. The membrane is suitable for maintenance foot traffic, not regular pedestrian traffic or a commercial trafficable deck finish.
Do not apply onto wet or contaminated surfaces, during imminent rain or over rising damp and negative hydrostatic pressure. For an exposed balcony that will receive routine foot traffic, a separate approved trafficable finish or protection system is required.
Can Everflex WPUV be left exposed?
Yes, within its specified exposed waterproofing applications and traffic limits.
What dry film thickness is required?
At least 1.0mm internally and 1.3mm externally.
How long before tiling?
Allow about 48 hours at 25°C and 50% relative humidity.
Can it be used over rising damp?
No. Negative hydrostatic pressure and rising damp require a suitable moisture-barrier system.
| Property | Value |
|---|---|
| Product Type | Elastomeric Waterproof Membrane |
| Density | 1.24 g/cm³ |
| Consistency | Thick Liquid |
| VOC Content | <2 g/L (Greenstar Compliant) |
| Clean Up | Water while wet |
| Storage Temperature | +10°C to +35°C |
| Application Temperature | +10°C to +35°C |
| Service Temperature | -40°C to +80°C |
| Coverage Rate | 1.5 L/m² |
| Recoat Time at 25C | 2-4 hours after touch dry |
| Final Drying Time at 25C | 48 hours |
| Shelf Life | Minimum 12 months from DOM |
| Water Vapour Transmission | 2.2 g/m²/24h |
| pH | 8-9 |
| Specific Gravity | 1.24 |
| Storage Conditions | Between +10°C & +35°C |
| Recoat Time | 2-4 Hours after touch dry |
| Full Cure | 48 hours (may vary with climatic conditions) |
Here are some common examples on where Everflex WPUV Elastomeric Waterproof Membrane used by our customers.
