ROOF Rx™ is a waterproofing sealant and sealer that penetrates, reconditions, and protects multiple roof surfaces. ROOF Rx™ is designed to guard against water damage, UV rays, and mildew. ROOF Rx™ penetrates and reconditions asphalt shingles while also locking down the granules to extend the life of the shingle. Together, ROOF Rx™ products provide long-lasting protection from wind-driven rain and damaging storms.