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Spray
Foam Roofing
SPF Roofing Systems provide
many benefits to building owners. The two most prominent benefits
are waterproofing/leak prevention and insulation value. Many
additional benefits also exist such as superior compressive
strength, lightweight, self-flashing, durable and long  lasting.
SPF is a closed-cell roofing material formed
by combining two liquid components. When these two materials meet in
the mixing gun, they expand 20 to 30 times their volume immediately,
forming rigid polyurethane foam (PUF). This foam is sprayed on the
entire roof to the desired thickness, usually 1-2 inches, to form a
seamless monolithic surface including flashing, penetrations and
parapet walls. This eliminates seams and cold joints, the primary
source of major leaks, and provides a durable waterproof covering
that bonds tightly to nearly any properly prepared
surface.
Seamless: Seams are
one of the major sources of leaks in roof systems and SPF roofs are
totally seamless. Polyurethane foam is applied as a liquid, creating
a single monolithic membrane that covers the entire roof – no seams
and no joints. The foam is easy to replace when stacks or other roof
penetrations need to be moved or added.
Lightweight: Foam
roofing typically weighs around 50 lbs per square, versus 800 lbs
for a built-up roof and 1000 lbs. for ballasted single-ply roofs.
This reduces the structural dead load on your roof.
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