Ultra HT Wind & Water Seal™ is composed of a cool white, non-slip, cross-laminated, high density polyethylene film laminated to a high temperature rubberized asphalt adhesive system. This self-adhering “self-stick” premium product is extremely tough and durable and offers a 90-day UV exposure rating. Ultra HT Wind & Water Seal™ is engineered as a whole roof underlayment for use under asphalt shingle and metal roofing systems. Ultra HT comes with a split release liner for use in valleys, ridges, around chimneys and at eaves for protection against ice dams, wind-driven rain and water penetration.
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