Owl Lava 20 Liquid Rubber Waterproofing System: Ultimate Protection for UK Roofs & Beyond

Transform your roofing projects with Owl Lava 20—the BBA-certified, professional-grade liquid waterproofing system trusted across the UK. Whether you’re tackling a lava 20 flat roof, pitched roof, balcony, metal surface, or podium deck, our Lava 20 single-component polyurethane solution delivers unmatched durability, flexibility, and cost efficiency.

Why Professionals Choose Owl Lava 20 Liquid Rubber:

✔️ 20+ Years of Weatherproof Security: Achieve a 10-year lifespan with one coat (1.8kg/m²) or extend protection to 20 years with two coats (1.5kg/m² per layer).
✔️ Instant Rain Resistance: Cures rain-ready in just 30 minutes at 20°C, even in temperatures as low as 0°C—perfect for the unpredictable UK climate.
✔️ Extreme Temperature Resilience: Stays flexible at -40°C and heat-resistant up to 80°C, ensuring year-round performance.
✔️ Seamless, Bubble-Free Membrane: Superior UV stability, tensile strength, and abrasion resistance for roofs that endure.
✔️ CE Approved & BBA Certified: Guaranteed quality for residential and commercial projects.

Ideal Applications:

• Lava 20 Roof Coating: Perfect for lava 20 roofing on flat, pitched, or metal roofs.

• Balconies, terraces, podium decks, and concrete structures.

• Porous substrates like asphalt or felt (apply ≥3kg/m²).

How to Apply Lava 20 Roofing System

For optimal results, follow these steps when applying Owl Lava 20:

1. Prime all substrates with Owl Lava Super Quick Prime
2. Apply Lava 20 liquid rubber using a brush or squeegee for a flawless finish
3. For a 10-year life expectancy, apply a single coat (1.8 kg/m²)
4. For a 20-year life expectancy, apply two coats (1.5 kg/m² each)
5. On porous substrates like concrete, felt, and asphalt, apply a minimum of 3 kg/m²
6. Optionally, apply Lava 20 coloured top coat or Lava 20 clear toap coat to protect the waterproofing coating and add a splash of colour.

Note: Lava 20 is not recommended for structurally unsound substrates.

We have also curated Lava 20 kits that include everything you need for a successful waterproofing application, ensuring you have all the necessary components at your fingertips.

Technical Specifications of Lava 20 Waterproofing

• Viscosity: 3500 - 5500 cP
• Specific Weight: 1.3 - 1.4 gr/cm³
• Flash Point: 42°C
• Shelf Life: Minimum 12 months in unopened containers
• Available Sizes: 1 kg, 6 kg, 15 kg, and 25 kg containers

Pro Tip: For best results, clean tools immediately after use with Owl Roof PU Solvent. Ensure a clean surface by using a solvent or light sanding before priming and applying Lava 20 waterproofing.

Buy Lava 20 Today!

Ready to experience the ultimate in roof protection? You can buy Lava 20 from Global Coatings. We are one of the leading lava 20 stockists across the UK. Whether you're looking to buy Lava 20 for a small residential project or a large commercial application, our professional-grade waterproofing solution is up to the task.

Not sure if Lava 20 is right for your project?

Read Owl Lava 20 reviews from satisfied customers or contact us for personalized advice. Our team of experts is ready to help you find the perfect Lava 20 system for your specific needs.

Don't let water damage compromise your property. Choose Owl Lava 20 - the trusted name in liquid rubber waterproofing. Contact us today to learn more about Lava 20 pricing and find a stockist near you!

Frequently Asked Questions (FAQs)

1. What is Lava 20?
   Lava 20 is a single-component liquid polyurethane waterproofing system with excellent adhesion on most surfaces.
2. Is there a warranty on Owl Lava 20?
   Yes, Owl Lava 20 comes with a 25-year warranty against manufacturer defects, provided the product is applied according to the instructions.
3. What is the life expectancy of Owl Lava 20?
   When properly applied and maintained, Owl Lava 20 can last for many years, typically 10 years with a single coat and in excess of 25 years years with a three-coat application (two coats Lava 20 and top coat) depending on environmental conditions and wear.
4. How long does it take for Owl Lava 20 to dry?
   Owl Lava 20 typically dries to the touch in approximately 45 minutes. However, it’s recommended to wait for the product to cure at least 6-8 hours at 20°C before applying further coats or exposing the surface to heavy moisture.
5. Do you use matting with Owl Lava 20?
   Matting is not necessary for most applications of Owl Lava 20. However, it can be used in specific cases where additional reinforcement is needed, such as on highly flexible surfaces, areas prone to significant movement, over bitumen-based surfaces (felt/asphalt), or over single-ply membranes (Trivial/PVC, EPDM).
6. Can I apply Owl Lava 20 on a wet or damp surface?
   Moisture content in the surface of a maximum of 10% is allowed; however, a clean and dry surface is always recommended for a long-lasting solution.
7. What is the fire rating of Owl Lava 20?
   Owl Lava 20 has a B-ROOF (T4) (European/British Standard) rating and provides a level of fire resistance, making it suitable for use in certain building and industrial applications.
8. What does Owl Lava 20 stick to?
   Owl Lava 20 adheres to most common construction surfaces, including concrete, wood, metal, and asphalt. It creates a strong bond to both clean and rusted surfaces.
9. Can you put Lava 20 liquid rubber over felt?
   Yes, Owl Lava 20 can be applied over felt roofing material, provided the surface is clean and dry!
10. Can you paint over Owl Lava 20?
    Once Owl Lava 20 has fully cured, it can be painted over with one of the many coloured topcoats available as part of the system. While other paints might stick to Lava 20, they would not be as flexible as the Lava 20 system, and they might crack!
11. Can Owl Lava 20 go over fiberglass?
    Yes, Owl Lava 20 can be applied over fiberglass surfaces, provided the topcoat resin of the fiberglass is sanded/keyed to create a better surface for adhesion.
12. How much Lava 20 would I need for my roof?
    The amount of Lava 20 you’ll need depends on the desired life expectancy and the number of coats applied. For a 10-year life expectancy, a single coat will require a minimum of 1.8 kg/m². If you're aiming for a 20-year life expectancy, you’ll need to apply two coats, with each coat using about 1.5 kg/m². To determine the total amount needed, simply multiply the coverage rate by the surface area of your roof.
    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:

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