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Thompsons High Performance Roof Seal Black 2.5Ltr (46708)

Highly flexible black coating that outperforms bitumen-based products. Resists cracking during expansion and contraction. Rainproof in 6 hours. No primer required. Will last up to 10 years.

  • 2 Applications Required
  • Suitable for Roofing
  • Long Lasting
  • Model No: 30144X
  • Low Odour
  • UV & Weather-Resistant

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£19.99INC VAT (£8.00/Ltr)

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Thompsons High Performance Roof Seal Black 2.5Ltr is rated 4.4 out of 5 by 37.
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Rated 5 out of 5 by from Roof sealer This is a great sealer for any type of flat roof , easy to apply and dries quite quickly . At at very reasonable price , well recommended.
Date published: 2016-12-12
Rated 5 out of 5 by from So easy to use. This roof seal is so easy to brush on and brushes wash out in water. I certainly waterproofed the old felt on my shed roof.
Date published: 2016-10-03
Rated 5 out of 5 by from It really works, Tried a few different products over the years but this one works, give it a nice heavy coat, it dries really quick and does the job. This is the third time I have used it and no complaints. will use it again.
Date published: 2016-07-20
Rated 4 out of 5 by from easy to work with I have used Thompson's roof seal a few times now and prefer it to the bitumen based products and find it does not crack easily.It has good flexibility and can be applied easily with a paint brush and allows you to get the material into cracks or suspect areas.It is much cheaper at Screwfix than other DIY outlets.
Date published: 2016-02-23
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Flat roof on kitchen Extension

Hi there I have got flat roof on my kitchen Extensions . Can I use this product to prolong its felt life. Regards Manjeet
Asked by: Manjeet
Thanks for your question. Thompson's Roof Seal can be used to extend the life of felt as an alternative to re-felting it wouldn't be suitable for use on a newly felted roof however.
Answered by: Thompson's Product Expert
Date published: 2017-03-02

i have just refelted my shed roof would this product be ok to make it extra watertight? to paint directly on top of the felt and would it make the new felt last longer?

Asked by: helpera
Thanks for your question. This product is an alternative to re-felting rather than something to use at the same time. New felt would have to weather for some time before Roof Seal could be applied therefore we wouldn't advise application at this stage, although it could be applied later to extend the life of the felt.
Answered by: Thompson's Product Expert
Date published: 2017-03-05

roof sealant

My (slightly sloping) shed roof is clad in OS3 board. Could I paint it with one of your sealants instead of using felt?
Asked by: geoffgeoff
Thanks for your question. We don't recommend our seals are used as alternatives to applying felt, they are intended to maintain or repair existing felt.
Answered by: Thompson's Product Expert
Date published: 2017-03-01

What is the lowest temperature at which this product can be used?

Asked by: GeofW
Thanks for your question. In order for the Roof Seal to cure thoroughly and therefore be resistant to rain it must be applied at temperatures of 10 degrees C and above. This applies to both the temperature at application and throughout the drying time.
Answered by: Thompson's Product Expert
Date published: 2017-02-08

Shed roof leakage

I have recently replaced the felt on my flat roof shed and I have noticed the water is leacking from the joints and from the nails I have applied to fix the felt. Can you please advise what will be the best solution to fix the leakage.
Asked by: Navjeet
Thank you for your enquiry. The product you mention is intended for application to the whole area and would not be effective if used in this way. Thompsons Emergency Roof Seal would be a better product for your needs, it contains fibres to reinforce the area of repair/application.
Answered by: Thompson's Product Expert
Date published: 2017-01-15
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Specification
Brand Thompsons
Coating & Finishes Drying Time Dry within 6 hours
Colour Black
Manufacturer Guarantee 10 Year Manufacturer's Guarantee (T&Cs Apply)
Model No 30144X
Pack Size 1
Pieces in Pack/Case 1
Product Type High Performance Roof Seal
Resistant Type UV & Weather-Resistant
Sealant Adhesive Volume 2.5 Ltr
Suitable Application Suitable for Roofing
Total Product Weight 3840 kg

Curing time: Dry within 6 hours. Coverage: 2 sqm per litre.

Downloads

Safety Data Sheet (COSHH)