Owens-corning Fiberglas Corporation

Owens Corning Fiberglas Technology, Inc.

Other

James C Wintgens

Roger A McFarland

James R Wells

William N Stassen

Eleanor B Cohen

Arthur Blinkhorn

Denise A McLaine

A roofing shingle includes organic, resinous material and an inorganic filler material, the single having a top surface, two side surfaces, an upper end, and a lower or butt end, defining a cavity on the underside of the shingle, with ribs positioned within the cavity. When applied to a roof, the shingle has the appearance of wooden shake shingle and provides a Class A fire barrier when tested according to ASTM test E108-93 for flame spread, burning brand and intermittent flame.

Shingle having ribs and cavity on its underside

Shingle having ribs and a cavity on its underside

A roof includes a roof deck and a plurality of roofing shingles where the roofing shingles have the appearance of a wooden shake shingle and comprise organic, resinous material in, preferably a plastic material, an amount within the range of from about 16 to about 24 percent by weight, and a filler material in an amount within the range of from about 76 to about 84 percent by weight. The roof provides a Class A fire barrier when tested according to ASTM test E108-93 for flame spread, burning brand and intermittent flame.

Roof having resinous shingles

Acrylate-vinyl acetate copolymer size compositions for glass fiber reinforced cementitious products are disclosed. These size compositions show strong improvements in all phases of strand integrity with improved run-out performance in chopping.

Size compositions for glass fiber reinforced cementitious products

Elastomeric size compositions for glass fiber reinforced cementitious products are disclosed. These size compositions show strong improvements in all phases of strand integrity with especially improved performance in wet integrity. This in turn improves the strand's workability in a cementitious matrix.

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Newark, OH, United States of America

James C Wintgens