Q. Lately I've seen roofers install a strange product that looks like traditional felt paper, but it's not. It has a peel-away backing paper, and this material sticks to the wood sheathing. What is it ...

Roof installation problems often remain hidden for years because surface materials can appear intact while key details ...

We have a 23-year-old felt flat roof on a ground floor extension five metres square which is cracking and needs to be replaced. We do not want to have a "torch-on" felt roof (neighbours had their ...