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MetalCoffeeShop.com > Buy Online > The pinnacle of fire‑rated defense: Ultra HT Wind & Water by MFM

The pinnacle of fire‑rated defense: Ultra HT Wind & Water by MFM

May 12, 2026 at 11:26 a.m.

Ultra HT Wind & Water Seal is a 45-mil, self-adhering, waterproofing underlayment composed of a white, non-slip, cross-laminated polymer film laminated to a HIGH TEMPERATURE rubberized asphalt adhesive. Ultra HT is engineered for use under all roofing systems including metal and tile where high heat is generated. Use in valleys, ridges, around chimneys and at eaves for protection against ice dams and wind-driven rain. Use as a whole roof covering for secondary water resistance. Ultra HT comes in a roll size of 36" wide x 67' length roll (200 sq ft). Packaged one roll per carton. 10-Year warranty.

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