Roof Coating

Class 4 is the top impact rating under UL 2218, earned by surviving two strikes from a 2-inch steel ball dropped 20 feet without cracking. Iowa ranks 7th nationally for hail, with May and June carrying most of the annual risk. Where carriers offer it, a Class 4 discount commonly runs 10 to 35 percent…

Silicone vs Acrylic Roof Coating: Silicone cures by reacting with moisture, so it handles ponding water, humidity, and 35 F application, and is rain-safe in 4 to 8 hours. Acrylic dries by water evaporation, costs $1.50 to $3.50 per square foot installed against silicone at $2.00 to $5.00, stays cleaner, but needs 24 to 48…