High traffic and high service areas on a rooftop, particularly those with vents, hatches, and heavy duty air conditioning units, that have been reinforced with extra coating and granules to prevent damage to the polyurethane foam system.

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.