DURABLE – Duco R Panel foam inside closure strips can resist an incredible range of temperature extremes and block vapor transmission action. Does not fracture, shrink, bleed, dry out or dissolve when exposed to extreme weather and UV conditions. Does not absorb moisture and is highly resistant to most chemicalsVERSATILE – These flexible, lightweight metal roof closure strips experience uniform compression and are designed to improve the integrity of your outdoor metal, aluminum, tin, or plastic roof in your particular building or construction environmentABSORBS SOUND – Duco roof strips reduce noise migration and plug each gap or hole where your corrugated metal roofing panel or ribbed roofing panel meets the support wall, providing a virtual acoustic barrier from the noise outdoors to mask unwanted soundFITTED – Duco’s foam for metal roofs inserts perfectly into their respective metal panels or other materials of the same profile and offer an interlocking dovetail design. Their weather-tight insulation helps seal out wind, birds, pests, or any rodent and provides water proof support on any buildings such as a greenhouse, barn, home, shed, cabin, house, warehouse, etc.