SmartRoof™ Silicone Roof Coating by SmartRoof $ 329.00 5 Gal - $ 329.00 Gal - $ 84.08 5 Gal Gal Size 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart A low-cost solution to re-roofing SmartRoof™ Silicone Roof Coating: Ideal for use on existing flat or low sloped roofs Roll or spray-apply, touch-up with a brush or roller Requires 2 coats Tech Data Sheet (PDF) Application Instructions (PDF)