R16 insulation thickness R16 insulation thickness711 per Inch (R16 = 2 1/4") Closed Cell Content Over 90% Weight 2 lbs/cu ft Max thickness 4" (R 28) Topcoat 2 coats (min 23 mils DFT) White elastomeric coating Undercoat (optional) 1 coat (23 mils DFT) inorganic zinc primer UV Resistance Excellent (ASTM D1499) Reflective index 90% StabilityThermax ™ Sheathing Thermax ™ Sheathing* is a nonstructural, rigid board insulation consisting of a glassfiberinfused polyisocyanurate foam core laminated between 10 mil smooth, reflective aluminum facers on both sides The glassfiber reinforcement contributes to improved fire performance and dimensional stabilityAesthetically appealing that boost your home's curb appeal as on average, garage doors make up 30 percent of what passerby will see of your home;
The Truth About R Values Delden Garage Blog