Flat roofs share one trait: with time, they tend to leak. You can, of course, have a new hot-tar-and-gravel roof put down but sometimes there may be a design reason for adding a pitched roof as a long ...

Q What is the purpose of gravel on my garage flat roof? Silt and moss has built up around and under the gravel and some areas of the roof have no gravel as it has drifted. Should I remove and replace ...