I have a shed covered with tongue-and-groove cladding, which I've repainted on the outside since it was built.
The roof is the same material but covered with roofing felt. I'd liketo make the roof last a long time and I happen to have some bitumen paint lying around --- would putting a few coats of this on the roofing felt every few years be a good way of extending its durability?
The roof is the same material but covered with roofing felt. I'd like