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Everbuild Black Jack All Weather Roof Coat 5L

4.7 (660 reviews)
SKU: 260223155527147 EAN: 5036684001205

Compare 1 price for Everbuild Black Jack All Weather Roof Coat 5L — from £36.69 across 1 UK seller including Toolstation.

£36.69 7h ago
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Customer Reviews 660

4.7
660 reviews
5 star
533
4 star
88
3 star
14
2 star
11
1 star
14
Black jack roofing compound
5.0
February 26, 2026
Crispin007 Verified Purchase

Great product. Needs thorough mixing before applying but does a great job and better value than many alternatives.

Easy repair for flatroof
5.0
February 24, 2026
Ben Gl Verified Purchase

Works a treat for repairing a leaky flat roof. Make sure you give it a good stir before use, but otherwise does exactly what it’s supposed to do

Excellent product
5.0
February 18, 2026
Cbil Verified Purchase

A great waterproofing product. I have used this product on three different surfaces and on each occasion it has performed as it says it should. All leaks have stopped and it is very easy to spread and apply subsequent coats. I tend to lean toward belt and braces approach to most jobs I take on.

Does the job
5.0
February 14, 2026
LawrenceT Verified Purchase

5* single application to clean dry roof and no more leak. Worth noting that this alone isn't a long term solution. Needs 2 coats and some solar reflective paint on top. However can't fault the fact that it instantly solved the issue. Just need the weather to stay dry so I can apply that 2nd coat 😀

Sealer
5.0
January 15, 2026
Shed1 Verified Purchase

Went on well with brush and stopped leak instantly. Only time will tell how good it is but happy so far

Even on a wet roof. Sealed in no time
5.0
January 14, 2026
776b528b-ab13-58e7-ae2f-404a326f42a1 Verified Purchase

Fantastic product, saved my shed tools! Even on a soaking shed roof. 2 coats and no more ingress of water. Glad I had a hasmat suit though!

just the job
5.0
January 11, 2026
Beech68 Verified Purchase

bought to reassure myself that the tired roof felt on the shed was capable of doing the job
A+ so far

Excellent product
5.0
December 28, 2025
John Maguire Verified Purchase

Excellent product, easy to use and does what it says on the tin.

Roof sealant
5.0
December 11, 2025
Dannyboy 28 Verified Purchase

Easy to use
Good thickness
Added fibres aid bonding

Does what it says on the tin
5.0
December 7, 2025
NMc Verified Purchase

Painted on well - needs a good mix. So far still waterproof

Works well applies easily
5.0
November 19, 2025
DevonDaggers Verified Purchase

Needs stirring a lot to get the fibres mixed. Goes on well with a 4" brush.

Nice one
5.0
October 18, 2025
Dunmendin Verified Purchase

As described easy to apply brilliant finish definitely use again and also recommended to friend who also used and well happy with results

Good stuff
5.0
October 12, 2025
9e3e96ff-eb17-5e4b-9eff-81683b801730 Verified Purchase

Amazing stuff , like others say stir it well before use , and even again during , I've painted a tiled roof canopy to make it fully waterproof ,
And looks good once dry

Well past its shelf life. Staff were at all bothered.
1.0
October 3, 2025
Rich Wiltshire Verified Purchase

The product has a 24 month self life and the Devizes store tried to give me a tin that was manufactured in 2021 and the Feb 2024 Tim I did purchase had been stored on a cold floor and therefore its contents (the fibres) had gone hard in the bottom of the tin and were in-mixable. What makes it worse is he staff member put the original tin back for future sales.

Black jack
4.0
September 26, 2025
Jedimaster Verified Purchase

The paint was quite solid so it took a lot of stirring. But went on well it gets everywhere. Its like liquid tar.

Needed a quick fix to sort out a leak on a flat roof did exactly what I needed
5.0
September 26, 2025
711e956f-ebb3-526a-a4c9-caf41538af37 Verified Purchase

Simple Roof Repair Essential to sort out a leaking flat roof

Good thick bitumen
4.0
September 26, 2025
Flat roof Verified Purchase

This appears to be very good, but as others have said, it needs a very good stirring but once stirred properly it is very thick. I put the first coat on with a tar brush which applied it very good. The second coat I used a 4" fence brush, this applied the second coat a lot quicker and only took me half the time of the first coat

The instructions said wait 24 hrs before applying the second coat, which I did but the first coat was still a bit tacky.

I can`t fully judge it yet as it has not rained since I applied it to my flat roof that had a leak. Hence only 4 stars

Good stuff
5.0
September 18, 2025
Pete1957 Verified Purchase

Certainly done the job on my garage roof no more leaks!

It is what they say it is
4.0
September 10, 2025
JonnytheBull Verified Purchase

As described, goes on easily, is bitumen with fibres. Thick but goes on easily. Get it warm before stirring with a long sturdy stick or you will struggle to get all the good stuff off the bottom of the tin. I wrapped a hot water bottle around the base, worked well.

Great product. Works really well. Does need a very good stir to get all the fibres mixed. Just a great job of resealing shed roofs. Would recommend th
5.0
September 4, 2025
AFarrow Verified Purchase

Great product for the price. Just make sure to stir it well before use

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