Hail-Resistant Roofing Systems
Proven Protection. Real Performance.
Severe weather demands systems that can stand up to the challenge. Carlisle SynTec’s Very Severe Hail (VSH)-rated assemblies are tested, approved, and trusted to deliver superior protection in hail-prone regions. This page acts as a hub to bring together all the resources needed to specify, sell, or learn more about Carlisle SynTec's industry-leading hail-resistant roofing systems.
Hail Cannon Video - 135-mil FleeceBACK TPO over StormBase
FM Approvals' impact-resistance test method includes testing for the Very Severe Hail (VSH) classification. The testing involves propelling 2-inch-diameter pre-formed ice balls at roof system test specimens using an ice ball launcher. The ice balls are propelled at 152 to 160 feet per second, resulting in an impact energy of 53 to 58 ft-lbs. on the surface of the roof system test specimen. This video demonstrates one of Carlisle’s 135-mil FleeceBACK TPO over StormBase assemblies that pass FM’s VSH classification.
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Understanding FM’s VSH Testing
This blog post breaks down the FM VSH testing and classifications.
Full Listing of VSH Code Approvals
Outline of FM code requirements for approved VSH assemblies.
VSH-Approved Cover Board Options
Engineered for impact resistance from the top down.
SecurShield HD Composite Polyiso Insulation
SecurShield HD Composite is a unique composite insulation panel comprised of ½" high-density polyiso cover board laminated to SecurShield rigid polyiso roof insulation and is approved for use in assemblies meeting FM's Very Severe Hail (VSH) Classification.
SecurShield HD Composite RL® Polyiso Insulation
SecurShield HD Composite RapidLock Polyiso is a rigid roof insulation panel composed of a top layer of high-density, closed-cell foam, and a bottom layer of 20 psi closed-cell foam. Both layers are laminated to a premium-performance, coated glass mat facer (CGF).
DEXcell FA VSH® Glass Mat Roof Board
DEXcell FA VSH Glass Mat Roof Board has a reinforced gypsum panel with enhanced moisture resistant gypsum core and heavy duty coated glass mat facers. It is extremely durable and is approved for use in single ply and multi-ply assemblies meeting FM Very Severe Hail (VSH) Classification.