Many spray polyurethane foam- (SPF-) based roof systems are
coated with elastomeric coatings that generally require some amount
of yearly maintenance and recoating about every 10 years to 15
NRCA is aware of instances when SPF roofing contractors have
been involved in recoating projects where there has been confusion
regarding the interpretation of building code requirements,
specifically whether a recoating project can be construed as a
One of the building code's requirements for determining whether
a re-cover roof system can be installed is whether the existing
roof has two or more applications of any...
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