Seals, reflects and protects roofs. Ideal for flat roofs with standing water. The bright white finish keeps roofs cool.In hot or cold climates, this coating forms a seamless layer of waterproofing coating that will stretch to prevent cracking and peeling. Provides the highest degree of waterproofing protection and protection to the underlying roof surfaces. Rain safe in 60 minutes. 5 gallons will cover 250 sq ft of surface and will result in a dry film thickness of 30 mils.