Black Mineral Torch-on Underfelt 3.0m x 0.4m (Radcliffe Road NG2)

I found this piece of Roofing felt at my parents house, whilst doing a clear out - thinking I might be able to use it.

Have researched this as possible under felt, due to its weight. (1.9KG)

Just feel reticent about using a blow torch, so have decided to give it away.
Stored in a dark, cool place.

Thanks for reading