OWL Lava 20
OWL Lava 20

OWL Lava 20

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OWL Lava 20

Owl Lava 20 is a single component polyurethane liquid waterproofing system that can be applied in temperatures down to 0°C. Rain resistant within 30 minutes( 20 oC ). Owl Lava 20 is a rapid curing,  UV colour stable, defect free waterproof membrane with excellent mechanical and elastomeric properties. Can be applied in one coat.

The product has a BBA (British Board of Agrement) accreditation certificate and is CE Certified..

Lava 20 can be applied to many different roofing substrates and is ideal for winter application as it will cure down to 0°C. This roofing system eliminated the drawbacks of multi-layer waterproofing systems and reduces labour cost.

Suitable for the waterproofing and protection of flat roofs, pitched roofs, gypsum and cement boards, polyurethane insulation foams, verandas and balconies with light foot traffic, lightweight metal roofing, lightweight fibrous cement roofing, felt or asphalt membranes, TPO and EPDM membranes, concrete, timber, slate, GRP, podium decks and planting boxes.

10 year life expectancy in a single coat

  • Cures in 2 hours at 20°C
  • Bubble and defect free membrane
  • Reinforcement layers not required
  • Excellent weather and UV resistance
  • Rain resistant within 30 minutes at 20°C
  • Excellent thermal resistance - product does not go 'soft' in heat
  • Cold resistant - product remains flexible down to -40°C
  • Excellent mechanical properties - High tensile strength, tear strength and high abrasion resistance

Not recommended for unsound or structurally deteriorated substrates.


All substrates must be primed with OWL Lava Super Quick Prime prior to application of the Lava 20 waterproofing system.

For a 10 year life expectancy, apply in a single coat at a minimum of 1.8 Kg per m2 by brush or squeegee

For a 20 year life expectancy, apply in 2 coats of 1.5 Kg per m2 each by brush or squeegee

Technical Details

  • BBA Approved
  • Viscosity: 3500 - 5500 cP
  • Specific Weight: 1.3 - 1.4 gr/cm3
  • Flash Point: 42°C
  • Tack Free: 2 - 3 hours at 25°C
  • Overcoatable: Between 6 hours and 48 hours at 25°C
  • Clean tools and equipment immediately after use with paper towels and then use Owl Roof PU Solvent
  • Shelf Life: Minimum 12 months in the original unopened containers. Once opened use contents of the container asap.
  • Available in 6, 15 and 25 Kg

Recommended coating min 1.8kg/m2 - 2kg for non porous general applications:

Min 2.5kg for applications on Wood ( OSB, Ply)  Concrete, TPO,EPDM , TPO, PVC .

Please note Single Ply and shiny  finishes substrates would  require a Solvent Clean or light sanding prior to the application of the Primer then followed by the LAVA20 . 

3kg/m2 for Porous Concrete, Felt, Asphalt....

For Further information about the application process or to help with products required according to your project please do not hesitate to contact us.

Data sheets:

Product video

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