Advanced, next-generation technology provides the best solution for sealing facade and roof seams

Fome Flex Roof & Facade sealants in different colours for sealing facade and roofs seams

A common challenge for builders during construction work is how to reliably seal structural and expansion joints in facades, roofs or walkways. We offer a professional, high-quality and advanced solution – “Fome Flex ROOF & FAÇADE” sealant. “Fome Flex ROOF & FAÇADE” – a new generation, low-modulus, premium hybrid sealant – forms an extremely elastic and durable seam on commonly used building materials. Learn more about why this technology is unrivalled in the market.

“Fome Flex ROOF & FAÇADE” is our next-generation hybrid sealant featuring advanced and innovative technology based on a revolutionary principle.

Hybrid sealants cure with moisture in the air and they are designed to be more elastic and mechanically more durable than traditional products. “Fome Flex ROOF & FAÇADE” is also more resistant to temperature and weather fluctuations, resulting in a longer service life. It is also completely environmentally and health friendly, and is almost odorless.

These hybrid sealants are unique not only in their properties, but also in their versatility. They seal structural and expansion joints in facades, roofs and walkways on commonly used building materials. “Fome Flex ROOF & FAÇADE” is therefore the perfect choice for concrete, brickwork, painted wood, enamel, aluminum, stainless steel and various plastic surfaces.

By forming a highly elastic and durable seam on these materials, hybrid sealants cure without bubbles. They are also free of isocyanates, solvents and silicones, suitable for wider joints, with high mechanical resistance and strong initial adhesion.

“Fome Flex ROOF & FAÇADE” is also unique due to its zero settling. This product has excellent primer-free adhesion to most surfaces, even wet ones. Hybrid sealants are easy to apply and have a cure rate of 2-3 mm per day.

The products are simple and standard to use. The first step is to clean and degrease all surfaces. Next, cut off the top of the cartouche or foil packet and screw on the nozzle supplied with the cartouche.

The next step is to insert the cartouche or foil pack into the syringe gun and squeeze the trigger of the gun several times to fill the nozzle with sealant. The seam depth to width ratio for seams up to 10 mm is 1:1. Minimum width and depth is 5 mm. For a joint wider than 10 mm, the depth is the width divided by 3 plus 6 mm. The maximum width of the joint shall be up to 40 mm.

We are offering five different hybrid sealants in its range. “Fome Flex ROOF & FAÇADE” is available in clear, white, grey, black and anthracite.

All these products are certified with CE certification and other important certifications recognized in the construction market:

CE certification and other important certifications recognized in the construction market

For these reasons, “Fome Flex HYBRID ROOF&FAÇADE” is unrivalled in the market as a new-generation, low-modulus, premium hybrid sealant. For those who are looking for a reliable, high quality and intelligent joint sealing solution, this product will exceed all expectations.

1. What sealant is best for a roof?

Silicone and hybrid sealants (such as MS polymer or STPU) are ideal due to their superior flexibility, UV resistance, and durability in harsh weather conditions.

2. Are roof sealants worth it?

Yes, applying a roof sealant helps extend the lifespan of the roof, prevents leaks, and reduces ongoing maintenance expenses.

3. Will roof sealant stop leaks?

Yes, when properly applied, roof sealants effectively seal leaks and prevent water penetration.

4. What is the difference between roof cement and roof sealant?

Roof cement is a thicker, asphalt-based material primarily used for patching. Roof sealant, by contrast, is more elastic and flexible, designed to seal joints and cracks.

5. How long does roof sealant take to dry?

Drying time typically ranges from 24 to 48 hours, depending on the sealant type, application thickness, and weather conditions.

6. How long does roof sealant last?

High-quality roof sealants can last between 10 and 20 years, depending on environmental exposure and the materials used.

7. How to apply roof sealant?

Begin by cleaning the surface thoroughly. Apply primer if required, then use a caulking gun to fill joints with sealant, and smooth the material with an appropriate tool.

8. How to get roof sealant off hands?

For uncured sealant, use mineral spirits or a citrus-based cleaner. For cured sealant, mechanical removal may be necessary.

9. What makes hybrid façade sealants different from traditional ones?

Hybrid sealants combine the elasticity of silicone with the strong adhesion and paintability of polyurethane, providing enhanced weather resistance.

10. Can the same sealant be used on roofs and façades?

Yes, if the product is specifically rated for both applications—such as Fome Flex ROOF & FAÇADE or similar hybrid sealants.

11. How weather-resistant is Fome Flex hybrid sealant?

It provides excellent resistance to UV rays, rain, and temperature fluctuations, making it well-suited for year-round exterior use.

12. Can Fome Flex ROOF & FAÇADE be used for flat and felt roof repairs?

Yes, it is specifically formulated for use on flat and felt roofing surfaces, providing durable and reliable sealing.

13. How to maintain façade and roof seams sealed with hybrid sealant?

Conduct annual inspections, clean the joints, remove any damaged or deteriorated sealant, and reapply as needed to address any cracks or gaps.