Houses with flat roofing can be considered among the most aesthetically pleasing homes that come without a hefty price; after all, it requires simpler materials and lower costs for construction than pitched roofs. Flat roofs, however, also have their own disadvantages, such as their inability to shed water the way pitched roofs do, which often leads to bigger roofing problems. Fortunately, Surrey roofing experts are willing to educate you on common problems you can expect from your flat roof and how you can deal with them. Problems with the Flashing Your roof’s flashing is often made of materials like galvanised steel or aluminium, and its main aim is to go over the joints during roof construction to keep water from seeping through and eventually avoid leaks. When exposed with weathering and oxidisation, however, your roof’s flashing eventually becomes damaged. This can usually be fixed by resealing your flashing with plastic cement or replacing it entirely.
http://www.brunwinroofing.co.uk/blog/info-articles/surrey-roofing-experts-can-help-fix-these-common-flat-roof-problems.php
