It doesn't really need repairing, and even if you did manage to patch up a few holes or tears, it would be about as much use as putting a sticking plaster on a broken leg. After 50 years, the felt ...

Q I live in a 1958 detached house with brick cavity walls and concrete roof tiles. Some of the roofing felt is beginning to sag between the rafters and is breaking up. The roof tiles themselves seem ...