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Spray Polyurethane Foam

The Roofing that Can Stand Up to High-Wind Disasters

SPF roofing resists wind uplift. Typically a roof is the most vulnerable part of a building subject to high-wind disasters. Once the roof goes, the interior of the building is exposed to the elements. in fact, water damage to a structure and its contents is often ten times for costly than the damage to the roof itself. The image to the right shows two roofs in Puerto Rico hit by Hurrican Hugo. The one on the left has an SPF roof. The one on the right had a typical built-up membrane roof.

SPF roofing inspected in the aftermath of Hurricanes Hugo and Andrew held up under hurricane force winds. That's because a propertly installed SPF system is a smooth continuous surface that drips to the deck and building walls. It adheres so tight that there is no need for fasterners. It is seamless and self-flashing, so there are no joints or edges for the wind to hold onto.

SPF is lightweight yet rigid; it provides extra strength to help the roof stand up to the forces of nature. It is also resistant enough to resist missile damage. High winds pelting SPF roofs showed that leaking did not accompany penetration.

Compare Roofing Systems

Compare these attributes of typical Build-up Membrane (BUR) roofs with SPF roofs and see how an SPF roof can help protect your building when hurricanes, tornadoes or other high-wind disasters strike.

BUR Roof SPF Roofing System
• Overhangs, overlaps seams and joints • Smooth continuous surface with no edges seams or joints
• Attached flashings • Self-flashing
• Must be secured to the deck with fasteners • 100% adhesion – no fasteners are needed
• Subject to heavy damage and penetration from flying debris • Sturdy and resilient – resists missile damage and penetration
• Can lift or peel off under high wind conditions • Grips the building walls and holds tight against high winds
• Peeling exposes the building's interior to water damage • Protects the building's interior from leaks or water damage



To see more information, please view our PDF page and the document titled: Ay 124-Spray Polyurethane Foam - The Roofing System that can.pdf

Modern Marvels


This clip from the History Channel show Modern Marvels looks at spray foam insulation.