Ponding water is the main cause of roof deterioration on flat roofs. Water breaks down the membrane and causes leaks. To solve this problem a tapered insulation system can be installed which will shed the water off your roof and as a bonus reduce your energy bills.
Cracked Membrane/ Alligatoring
These low slope/flat roofs have been coated, probably to try and fix existing leaks. Water, debris and the sun breaks down the coating and roofing membrane providing only a temporary solution.
Edge damage is caused by water not draining properly and ponding at the edge. As the roofing membrane deteriorates, leaks occur and cause damage to your home.
A common problem area for leaks is where two different roof surfaces meet. The flashing (the metal between the roofs) was not installed properly and caused damage to this home.