Exterior Weather Barriers Data Sheet (SecureWrap Supreme) Exceptional Weather Resistance--Secondary Barrier to Deflect Water and Wind Driven Rain! Highly Engineered Providing an affordable secondary water-shedding barrier for your shingle roof system. 100% Inorganic Synthetic construction for long term moisture protection - won’t absorb water, and is inert to mold growth. Micro-Perforated Breathes to allow moisture vapor to escape. Inorganic Construction 100% synthetic construction offers long term moisture protection - doesn’t absorb water and is inert to mold growth. Protection from Air Leaks Superior protection when installed with taped joints. Durable Designed not to tear - stays in place.