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.
Hail damage to epdm roofing.
Random damage with no discernable pattern.
The amount and type of damage hail causes on roofs depends on a variety of factors.
Wood shingles hail damage.
A common type of thermoset membrane is epdm which stands for ethylene paropylene diene monomer.
Impact testing which correlates with hailstones indicates a concentric circular fracture pattern or star shaped fracture.
Loss of granules which may expose the roof felt.
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.
Top 3 hail resistant roofing options.
Hail hits that are soft to the touch like the bruise on an apple.
Here are the top hail resistant roofing options.
There are visually distinct damage characteristics in the various materials.
Random damage with no discernable pattern.
A sound epdm roof covering can withstand impact by hailstones up to 2 inches in diameter.
In extreme instances hail may puncture the epdm if the underlying substrate is soft or malleable.
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.
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.
When epdm roof coverings do sustain damage surface cracks can occur similar to thermoplastic membranes.
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Dark colored epdm helps building owners save on heating costs and light colored epdm helps building owners save on cooling costs.
How to recognize hail damage to roofing membranes.
Asphalt and or mat that appears shiny.
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.
Asphalt and composition shingles hail damage.
The most effective way to minimize hail damage is to choose durable hail resistant roofing materials.