All Weather CrownCoat (formerly Cold Weather CrownCoat) is a brushable, elastomeric coating that, when cured, forms a flexible waterproof membrane designed to repair and protect chimney crowns from moisture intrusion. The unique Freeze-Cure™ technology in All Weather CrownCoat allows the product to cure naturally in above freezing temperatures or to undergo accelerated “freeze-curing” in below freezing temperatures.