Mineral fiber insulation batt impregnated with coextruded polymer layering system

A mineral fiber insulation batt comprising:

• a base insulation layer of mineral fiber impregnated with a layering system having first and second layers;
• said second layer disposed over said first layer so that said first layer is located between said base mineral fiber layer and said second layer, said first layer having a lower melting point than said second layer;
• and
• said first layer including from about 10-25% ethyl vinyl acetate and from about 75-90% low density polyethylene so as to quickly bloom when exposed to heat thereby causing said base insulation layer to become impregnated with said layering system.

A fiberglass insulation batt impregnated with extruded ethyl vinyl acetate (EVA), the fiberglass insulation batt comprising:

• a fiberglass base layer having a density less than about 6.0 lbs. per cubic foot and an insulation value of at least R-8, said fiberglass base layer including glass fibers held together with a binder;
• extruded ethyl vinyl acetate;
• and
• wherein at least one major surface of said fiberglass base layer is impregnated with said extruded ethyl vinyl acetate.