WeatherLock® Metal Waterproofing Underlayment is the ideal choice for both residential and commercial use under tile or metal roofing products, providing superior roof deck protection. It's designed to protect against the higher temperatures associated with metal roofing.

An ideal flashing for skylights, valleys, vent pipes, chimneys, eaves, ridges and rakes, it helps prevent roof deck damage from freeze/thaw cycling, wind-driven rain and normal water flow. It is also approved for foam-adhered and mechanically fastened roof tile applications. It's an essential part of a complete roofing system.