Liquid-Applied Membranes
H.B. Fuller’s Moisture-Triggered Polyurethane Liquid Waterproofing System
Seamless Waterproofing Solution for Ultimate Protection
It is easy to see why liquid-applied membranes (LAMs) are one of the fastest growing sectors of the construction industry. Systems are becoming an increasingly popular choice for flat and low slope roofing projects due to their versatility, durability, and reliability.
LAMs cure to form a completely seamless and joint-free waterproof coating, providing a hard-wearing and long-lasting waterproofing solution, even around complex details. Applied by brush or roller, they can conform to any shape. While they are a great choice for new build projects because of the long guarantees that systems offer, LAMs also are ideal for repair or refurbishment projects. They are suitable for overlay and help extend the life of the roof without the cost of replacement. Systems are usually compatible with a wide range of roof substrates.
We have been supplying our single-component, moisture-triggered, polyurethane waterproofing system for over 20 years. In addition to LAMs, we offer a wide range of high-performance primers to improve the adhesion of the substrate you are working with.
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Liquid-Applied Membrane System
Our Moisture-Triggered Polyurethane Liquid Waterproofing System is a cold-applied multi-layer system, consisting of a base-coat, an embedded glass fiber mat layer to reinforce the coating, and one or more top-coat layers. Polyurethane is already a very tough material on its own, but the reinforcement layer ensures the coating provides a lasting durable waterproofing solution.
Independent tests prove that our Moisture-Triggered Polyurethane Liquid Waterproofing System provides long-lasting performance (up to 25 years) and can withstand significant stress due to its carefully selected elastomeric properties. This provides high levels of flexibility, reducing the occurrence of potential cracks due to the coating mitigating any movement in the existing structure. It also utilizes the latest fast-curing and cross-linking technology to ensure speed, ease, and consistency of application.
- BBA/ETA approved, with 20-25 year systems available
- Achieves a high-fire rating once installed (BROOF:T4)
- Offers proven weathering properties
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Liquid-Applied Membrane Primers
Our wide range of high-performance primers help to improve the adhesion of the substrate you are working with.
When applying LAMs, different substrates and applications will present different complexities. Primers come in a variety of different forms and are often substrate specific. Each LAM primer has been formulated for a specific application/substrate, from overlaying asphalt, RBM, metal and various single-ply membranes. Using the appropriate primer is vital to maximize the longevity of the roof and to comply with tested data.
Why choose H.B. Fuller for your liquid-applied membrane projects?
- Industry-Leading Innovation: We have developed cutting-edge PU waterproofing technology.
- Superior Waterproofing: Seamless and joint-free, eliminating common failure points.
- Easy Installation: Applied directly onto substrates with minimal preparation.
- Versatile & Durable: Suitable for various surfaces and extreme conditions.
- Technical Expertise: Our specialists provide expert support for your project.
Contact us for more information on how we can help with your next project.