

🛡️ Lock in lasting roof protection—because your home deserves the best shield!
Master Bitumen All Weather Roofing Repair Compound is a 25L solvent-based, cold-applied bituminous coating reinforced with organic fibers. It offers immediate water resistance and superior adhesion across multiple roofing materials, making it ideal for quick, durable repairs in any season. Trusted by DIY pros for its brush application and robust weatherproofing, it’s the go-to solution to extend roof life and prevent costly replacements.
| ASIN | B00IXS73HY |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 10,523 in DIY & Tools ( See Top 100 in DIY & Tools ) 8 in Roof Coatings & Paints |
| Colour | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,355) |
| Date First Available | 11 Mar. 2014 |
| Item Package Quantity | 1 |
| Item Weight | 27 kg |
| Manufacturer | MB |
| Manufacturer reference | 9WEAT02500 |
| Material | Bitumen |
| Number of Pieces | 1 |
| Part number | 9WEAT02500 |
| Product Dimensions | 30.2 x 30.2 x 46 cm; 27 kg |
| Specific uses | Roof repair |
| Style | waterproof |
M**E
It just works and works well.
This was my last throw of the dice before paying out £1.8k to have my felt garage roof re-felted. Stirring it was a challenge but with a stirring attachment in an electric drill I got the correct consistency and waited for a dry sunny day and applied it. Make sure you sweep the roof clear of all debris and your good to go. It's very thick and applying it takes effort, apply liberally with a tar brush. Waited 48hrs and gave it a second coat and 24hrs after that along came Storm Amy. I was dreading going into the garage to check but after 36hrs of torrential rain I checked and it was bone dry, nothing, no water ingress at all. Do the correct prep and apply liberally and this stuff is excellent and I would recommend it to anyone.
B**.
Excellent product and service
Don't normally leave reviews but this product and speedy delivery deserves one..this is my third tin of this my first purchase was roughly a year and half or so ago..long story short I bought a house and garage roof was dire felt coming off and ply boards warped new roof to say the least leaking like a seive and if you stood in the garage u could see the sun through the roof really bad but didn't have the money at the time to spend on a new roof..project roof 1 went up on the roof swept it down and removed loose debris..mad a note of loose and bendy boards and braced them from the underside with wood same dimensions as my existing roof beams inside results a reasonably sturdy roof 2 apply this amazing product but be sure to mix well I used a mixing attachment fitted to my cordless drill remember the product contains fibres that need mixing well to bridge fine gaps and add to strength..then I bucketed it on and spread it out with a 5inch flat brush applying liberally but also spreading out as well this coat was not intended to seal my roof but provide a good sound base to make repairs to and apply a second coat 3 after a couple of days when weather was cooler I went on the roof with a tube of gutter seal not silicone this stuff is like a soft bitchimen based product that stays soft in a caulk gun and filled all gaps and cracks between boards that didn't move anymore as I'd braced them underneith remember 4 I bought some bitumen adhesive and felt and patched over all of my repairs and dodgy looking bits on the roof then went around all patches with the roofing compound that I had from my first tin mixed well and painted onto and over edges of new felt patches liberally to seal them in ...5 order another tin second tin about 3 weeks had passed now and it has rained and the roof itself held up well and didn't leek but I knew what I had done was not really enough so I went onto the roof again when the weather was cool as bitumen or anything of that nature softens in direct heat so pick Ur day I swept off my sound patched roof and applied the already well mixed second tin this time with a trowel /float what ever you know it as and I had enough product for one good coat trowled on plentyfull and left well alone to dry ....1and a half years later ish and that roof has not leaked once in has puddles stood on it as I said the boards were warped but the product where this water has stood has not failed it has been through winter and frozen and snow and direct heat and not once failed no leaks..that is why IV just ordered another it came the day after I mentioned excellent service my plan this weekend is to build up my areas of standing water I will do this with pea shingle adheared to the puddles area dry until level eliminating standing water and then when cured apply another coat of this roofing compound to the roof with a float once this is cured a week or to after the summer I will adhesive and spread chippings on my roof to act as a protective surface from the sun and also a nice look of a flat roof from the back bedroom window yes it's cost me a few quid over time but I didn't have the money for a new roof and I have got a lot of satisfaction from doing it and I also think it has really tested the roofing compound as my roof was so bad great stuff I will maybe put on some pics soon as it stands now and when it is finished before chippings hope this helped.
E**.
Value for money
Great stuff did a good job on felt garage roof and got enough for a second coat
M**H
Initial thoughts are good value for money, and easy to apply.
Arrived in good time. I stupidly though hadn't considered just how heavy/awkward 25 litres was to carry up a ladder single handed, onto the garage roof. Decant half into another container to make it easier to carry, or get a hand from your neighbour. Anyway, it's pleasingly not too viscous, and was therefore easy to apply - used my wife's 2 litre kitchen measuring jug to pour where needed, and spread with a Draper 43783 Long-Handled Tar Brush. I've used some compounds in the past that really required lot of elbow grease. So, applied in Oct-2016, so let's see how this pans out over the coming years. Now to replace that measuring jug......and her marigolds.
P**T
Quality
First class product done the job perfectly
D**E
Good product
This stuff is great , easy to use mixes well dries quick leaves a nice new look to your roof.
P**U
Great product
Worked well
P**L
Waterproof coating
Looks really good stuff easy to mix and used a paste brush to apply,another coat tomorrow and see what happens when it rains 🌧 😀
Trustpilot
2 weeks ago
3 weeks ago