"I bought this to line the gullies on a complicated shed roof and it seems to have done the job as well as I could have hoped. Using it is a bit of a learning process so a couple of tips which may help the first time user - me yesterday. Cutting - it cuts easily with a stanley knife on a suitable surface or a large pair of sissors. However, both soon get covered in adhesive so it is worth taking along some white spirit and a cloth to clean the blades frequently. Fitting large pieces. It has been suggested to cut into 1M lengths which I ignored and got wrapped up in the task rather. Second time I used the stanley knife to score the back in strips so that I could peel it off a bit at a time - proper job! Finally,(actually, I did this first) I tried tests for sticking on a variety of surfaces and soaking under water. I found some porous ones where it just fell off so I tried again after applying a coat of bitumen paint and it was fine. Hopefully I shall be as pleased in 12 months time."
"Found this product reasonably easy to use, cut into approx 1mtr lengths. Very good adhesion including to your fingers if not careful. Very quick to apply. As for how long it will last remains to be seen, Appears to have done a great job. Recommended product."