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A super tough, all-weather flat roof repair compound, Fibreseal is a professional roofers repair product. This waterproof sealant for flat roofs comes as a thick fibrous paste which will adhere to any sound, dust-free and non-greasy surface. Ideal for Flat Roof Repairs.Read More
Due to ADR regs on transport of flammables we can only send 25L drums of solvent product via premium rate special carrier, hence minimum FREE carriage order is 4 x 25L or ring for a quote. Alternatively, you can still collect single 25L drums at our Ulverston or Glasgow trade counters.
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Fibreseal is the instant flat roof repair compound which is brush applied in just one coat, even in damp conditions. Developed for the repair and maintenance of industrial and commercial flat roofs, our waterproof sealant for flat roofs is endlessly versatile. Use this product to repair asbestos roof sheets, steel profile cladding, felt, and even for lining gutters.
Fibreseal is a thixotropic and highly adhesive acrylic resin paste. It is blended with millions of reinforcing fibres which allow it to effectively bridge small gaps unsupported and larger cracks with fibreglass matting. Our flat roof sealant is instantly waterproof and will not wash off if a rain shower appears before it has cured.
Ideal for Flat Roof Repairs, Felt Roof Repair, Asbestos Repair or Metal Cladding Repair. If you own or maintain any of these roof types, it is the must-have addition to your toolbox.
This high performance flat roof repair compound is perfect for emergency repairs and general maintenance. Flat roofing is challenging for a wide range of roof coatings because of standing water, temperature changes and UV degradation. Your flat roof is constantly being exposed to the harsh British climate. That’s why it is very important that your flat roof is suitably maintained with a high-quality waterproof sealant for flat roofs.
Ensure your roof evades expensive splits, cracks, tears and holes. Our flat roof repair compound is easy to apply and can help you avoid costly roof repairs. Even when it is wet, it will not wash away while curing and waterproofs immediately. We have a wealth of experience manufacturing roof repair products, ensuring quality and durability.
Two primary delivery options for smaller U.K MAINLAND orders (Typically under 100 Kg):
Standard 3-day service: £6.25 plus VAT (Note: Highlands Postcodes may be up to 5 working days)
Next Working Day*: £13.95 plus VAT (Not available to Highlands Postcodes)*Excludes weekends and public holidays
Cut-off time for “Next Working Day” orders to be processed is 12:00 noon. Once your goods have been despatched, you will normally receive a confirmatory e-mail with tracking details so that you can check the progress of your order. Details
Yes, this is one of FIBRESEAL\'s key advantages. It can be applied successfully to damp surfaces and even underwater in extreme emergencies. Unlike water based products, it won\'t wash off if rain occurs during application or curing, making it perfect for urgent repairs when waiting for dry weather isn\'t an option.
Coverage depends on your application method: Single thick coat: 1 litre covers 1-2m² (recommended for whole roof coating) Two thin coats: 1 litre covers 1m² total (0.5m² per coat for optimal uniformity) Emergency repairs: Higher coverage as you\'re targeting specific problem areas Measure your roof area and consider ordering 10-15% extra for overlaps and future touch-ups.
FIBRESEAL is designed for both professional contractors and competent DIY users. Application is straightforward, using either a brush or roller, and the thixotropic formulation ensures it won\'t drip or run. However, for large commercial roofs, complex details, or if you\'re uncomfortable working at height, we recommend professional installation. The key is proper surface preparation, which determines long-term performance.
Metal roofs: Require Kingfisher K-X11 primer system for optimal adhesion Fibreglass/GRP: Works well on pitched roof sheets, but flat GRP with hard resin topcoats may need surface preparation Not suitable for: Fresh bitumen or tar-based surfaces When in doubt, test a small inconspicuous area first or contact our technical team.
Immediate waterproofing: FIBRESEAL is waterproof as soon as applied Initial cure: 24 hours at 20°C (longer in cold weather) Full cure: Up to 72 hours, depending on temperature Walk-on safe: Only after full cure is achieved Lifespan: 5- 10+ years with proper application and surface preparation. The acrylic polymers are UV-resistant and won\'t become brittle with age, ensuring long-term flexibility and performance.
So I had painted my shed roof earlier this year with Thompsons roof seal which apparently has a 10 year guarantee - 2 coats and sealed - thought all would be fine… until we found the inside of the roof dripping water all over and the damp this had caused. After some research I found Kingfisher and the helpful gent I spoke to suggested this product. I didn’t like it much painting it on (but think that might be that I should have used a harder brush) but when it started to rain as I was painting, the difference to where I had painted this on and where the old stuff was still showing was very clear! You could see that with this product on the rain just sat in puddles on top whereas the Thompson roof seal had let it soak through - no puddles - just wet… definitely recommend the Fibreseal product - it works!
Reviewed by Julia
Only just managed to use some of the product because of the weather but up to now its worked a treat a1.⁸
Reviewed by Ian jones
I used Fibreseal, in black, on the concrete roof of a bomb shelter from WW2 that over the years, regardless of various 'miracle' solutions, has leaked like a sieve. It has been over 12 months since I sealed the roof and there has been no water ingress at all. It was not too easy to apply due to the thickness of the product but once in place it has finally solved the massive leak problem. I recommend Fibreseal unreservedly.
Reviewed by Bob Dando
Having used various Kingfisher products (masonry paint, asbestos sealer) with good results over 9 years for a shed near the sea at Dungeness - thought I should say something about the Fibreseal roof repair. I bought a tin in 2015 just in case. Fast forward 7 years to December 2022 - got a leak in my felt flat roof. It's 5 degrees c outside, wind chill is 1 degree. A bit damp too but things will get worse. I ask myself - will this stuff work? It's been on my shelf for 7 years. Label says - can be applied at 5 degrees c. Got on the roof, stirred it, painted it into cracks in the seams. Went on very smoothly. Come the rain - that problem is now fixed. I've just ordered more tins and the scrim tape just in case for next year when I might do the whole roof. I have confidence in these products based on what I've seen so far.
Reviewed by Zsolt Kerekes
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Kingfisher Lead Flashing Sealant Paint for rapid easy repair of lead flashing and roof joints and leaks. This lead mastic bonds lead to concrete/brick/stonework and possesses excellent elasticity on high movement joints. Moisture curing.
