A flat asphalt roof like modified bitumen has many merits, but it is always susceptible to ponding water. Without the aid of gravity, its low slope can’t quickly dry itself. When the roof drains are clogged, improperly installed, and/or unwisely designed, the trapped water has nowhere to go.
If ponding water is not effectively managed, your modified bitumen roof will be exposed to a host of dangers. In Fields Roof Service’s book, the following are the worst perils you should worry about:
Physical Damage to Roofing Membranes
Prolonged exposure to water is bad enough for any roofing materials. But when the liquid turns to solid and then changes its state over again, you will have a bigger problem on your hands.
The repetitive cycle of water-to-ice and ice-to-water transformations due to extreme temperature swings can damage your roof. As a result, you might be forced to tackle a complete roof replacement prematurely and finance a surprise major expense.
Compromised Structural Integrity of Roof Deck
The National Roofing Contractors Association itself said that ponding water can weaken a flat roof’s decking in 48 hours or less. To give you an idea of how detrimental trapped water can be, a one-inch-deep pond can be as heavy as more than five pounds per foot. A relatively old flat roof could collapse under the weight of tons of trapped water.
Accumulation of Contaminants
A wet environment can attract dirt and debris. Such contaminants may also contribute to the clogging of your property’s drainage system, complicating roof maintenance.
Growth of Vegetation
When left unaddressed for an extended period, ponding water might pave the way for vegetation. Silt may support the life of unwanted plants while constant moisture allows algae to multiply in no time.
Turn to Fields Roof Service to avoid the dangers of ponding water. Call us at (253) 852-4974 to schedule an inspection and get a free estimate.
