Patent ID: 7427575

Claim:
A mat faced fiberglass insulation product, comprising: a fiberglass insulation layer including glass fibers having a diameter of between about 3 to about 9 microns and a binder content of between about 2 to about 15% having first and second opposed major surfaces; and a first mat facing adhered to a first major surface of the fiberglass insulation layer, the mat facing including a non-woven layer having a first powdered polyethylene adhesive with a first melting point and a second powdered polyamide adhesive with a second melting point, wherein the mat facing is adhered to the first major surface of the fiberglass insulation layer by heating the mat facing and the fiberglass insulation layer to a temperature above the melting point of said first adhesive for a time sufficient to adhere the mat facing to the fiberglass insulation layer.