HOME     PRODUCTS     PROJECTS     INSTALLATION     FAQs     CONTACT      COVERAGE RATES   FABRIC PRIMER ROOF REPAIR PUTTY COATING Reflectivity Coat as needed 300 sq. ft. / gal as needed 2-3 gallons / 100 sq. ft. Metal Roofs over joints 500 sq. ft. / gal seams & screws 3 gallons / 100 sq. ft Asphalt / Composition Shingles optional 300 sq. ft. / gal as needed 4-5 gallons / 100 sq. ft. Flat Roofs full-fabric 300 sq. ft. / gal as needed 4-5 gallons / 100 sq. ft. Pitch and Gravel (tar) full-fabric 300 sq. ft.  /gal as needed 5 gallons / 100 sq. ft. (after scraping smooth) Other Uses Inquire at (808) 262-ROOF (7663)   Above coverages based upon total system thickness and usually achieved using two or three thick and even coats.