Sprayed Polyurethane Foam (SPF)
was first used as an alternate roofing material over 30 years ago.
Because of its excellent insulating characteristics, it has steadily
gained in popularity. Polyurethane foam roofing is applied as a
liquid. Two components (isocyanate and polyol) are combined in the
mixing chamber of a special gun and are sprayed
onto the substrate, where it immediately expands to 20-30 times its
initial volume. As the foam rises, it sets into a solid and a skin
forms on the surface. The closed-cell foam provides insulation,
while the skin forms a water-resistant surface. The thickness of the
application can be varied according to the need to create a slope to
drain, to meet a given insulating R-value, or both. To protect the
foam from ultraviolet radiation and to add to the waterproofing
qualities of the system, a finish coating is applied to the surface.
Key Benefits
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Save Money
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Environmentally Friendly
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Long-Lasting Protection