Hail Damage To Epdm Roofing

How to recognize hail damage to roofing membranes.

Hail damage to epdm roofing.

The amount and type of damage hail causes on roofs depends on a variety of factors. There are visually distinct damage characteristics in the various materials. Hailstorms can cause catastrophic damage to roofs especially when they are made from materials that aren t designed to hold up to high impact debris. Join the 30 day sales challenge 100 free.

Asphalt and or mat that appears shiny. Hail hits that are soft to the touch like the bruise on an apple. A roof that has been poorly maintained has recently sustained other types of damage or is simply past its prime has a higher risk of being harmed by hail than its newer and better maintained counterparts. Figure 9 hail damaged pvc membrane with thousands of temporary caulk repairs epdm roofing performance in hail protection epdm roof membrane provides benefits similar to some other popular membranes like low installation cost low life cycle maintenance and repair costs quick installation and it.

Impact testing which correlates with hailstones indicates a concentric circular fracture pattern or star shaped fracture. The most effective way to minimize hail damage is to choose durable hail resistant roofing materials. Hail hits that are black in color. Random damage with no discernable pattern.

Here are the top hail resistant roofing options. Wood shingles hail damage. A common type of thermoset membrane is epdm which stands for ethylene paropylene diene monomer. 1 epdm membranes are also installed as mechanically attached or fully adhered systems in which the membrane forms the top surface of the roof system.

Random damage with no discernable pattern. A sound epdm roof covering can withstand impact by hailstones up to 2 inches in diameter. Loss of granules which may expose the roof felt. When epdm roof coverings do sustain damage surface cracks can occur similar to thermoplastic membranes.

My question is about a formula amica used to determined the amount of hail damage in order to replace the roof the adjuster wrote to me saying in his letter the roof replacement is determined by the amount of damage on each slope and there was one minor hail strike damage found on the front slope so the replacement roof needs at least 8 hail strikes to any 100 square foot test area based on. Epdm ethylene propylene diene terpolymer offers a proven history of performance over 58 years based on superior flexibility elongation uv resistance and hail damage resistance. Controlled laboratory testing and field experience has found that hail smaller than 2 inches in diameter lacks sufficient mass to damage a sound ballasted roof covering. In extreme instances hail may puncture the epdm if the underlying substrate is soft or malleable.