Morris Products G16253 Universal Roof Flashing, Master Boot, 1/4" - 4" Master Boot Universal Roof Flashings - Versatile Universal Flashing for multiple roofing types Universal flashing can be used with any type of corrugated roofing material, ie: asphalt, plastic, tile, rubber, metal, etc. (not for hot mopped or built-up roofs) Self-sealing Step-Cone boot made of premium grade E.P.D.M., which gives it maximum resistance to weathering due to ozone & UV light Flexible Aluminum Alloy rim assures universal flashing form fits and has corrosion resistance - excellent for ribbed metal roofs Provides a Permanent Seal that is unaffected by expansion/contraction, vibration, ice, snow, hailstones, etc. Master Boot Universal Roof Flashings - Versatile Universal Flashing for multiple roofing types Universal flashing can be used with any type of corrugated roofing material, i.e.: asphalt, plastic, tile, rubber, metal, etc. Self-sealing Step-Cone boot made of premium grade E.P.D.M., which gives it maximum resistance to weathering due to ozone & UV light Flexible Aluminum Alloy rim assures universal flashing form fits and has corrosion resistance - excellent for ribbed metal roofs Provides a Permanent Seal that is unaffected by expansion/contraction, vibration, ice, snow, hailstones, etc.