Everbuild Black Jack 905 – All Weather Roof Coating – Solvent-Based – Fibre-Reinforced – Fast Drying – Weatherproof – Black – 5 Litre

Provides good coverage and durability. Applied it last week (in a cold, wet, grim January) and creates a strong, weatherproof seal, making it a great choice for protecting roofs. Straightforward to apply, just give it a good mix before you start.

Brilliant product....stopped my flat roof garage leaks with a couple of coats...easy to apply...good price too...nice size tin to handle as well...

Might well be good stuff, but is a very messy substance to use, beware. Best to wear some thin protective gloves as it drips from the brush very easily. Did some flat roof work and some shed roof work. So far it’s protecting well (after a month on) and some heavy rain recently. So probably good but as I say make sure you protect the floor, if you need to and your hands otherwise you’ll need a lot of white spirit! It comes across as a thin layer, so I put three on but appears to give a decent finish.

Easy to use and did what I need we d it to do, good value for money, a little goes long way. Stopped the leak. Fit for purpose.

Easy to apply. Must stir before use to get the fibres up. Really pleased with the product.

Works well for shed roofs etc. easy to apply

I bought this because I wanted to waterproof a summerhouse roof and I remembered using a bitumen and fibre compound on a roof on a farm 50 years ago (in my youth). I expected this to be the same. I don’t know whether fibres cost a lot of money but they’ve been a bit mean with adding them to this mix, and it’s impossible to get them all mixed in and because there’s too few fibres and too much liquid, they settle to the bottom within 30 seconds of stirring, I tried making a whisk and spinning it with the electric drill but no matter how long I did it for the fibres would immediately sink to the bottom. Eventually I poured off the excess liquid bitumen and was left with a thick “porridge” in the bottom half of the tin and that’s what I remember from 50 years ago. It’s gone on fine now and left a really thick layer which is what I wanted so that I could put some cedar shingles on top.

Good at doing the job I needed it forNeed a brush to applyNeed to seal roof next