Member Spotlight
Hygrade has been in operation since 1977 and has installed over fifteen million square feet of roofing. Our customer base ranges from small private businesses to Fortune 500 companies. From our roots, where we installed various types of insulation, focusing on polyurethane foam, we have evolved to our current core business.
NOISE REDUCTION COEFFICIENT (NRC)
A representation of the amount of sound energy absorbed upon striking a particular surface. An NRC of 0 indicates perfect reflection (strong echo), an NRC of 1 indicates perfect absorption (lack of echo).
SPFA believes that the path to a healthful, safe, high-quality and performing SPF installation travels through the hands of a knowledgeable, trained, experienced, and ideally PCP-certified professional contractor.
