SmartRoof FE-5SF3-W-5 5 Gallon, White Premium High Solids One-Coat Silicone Roof Coating Ideal for any type of aged roof---Approximately 80 sf per Gallon Coverage Easy to applyClean. Prep. Coat. 100% silicone elastomeric coating Keeps adhesion under standing water.......... Superior waterproofing properties Will not chalk, degrade or haze from UV exposure