Woven Roving cloth is a collection of specific numbers of untwisted continuous filaments. Because of higher fiber content, woven roving's lamination has excellent tensile strength and impact-resistant property. Woven Roving works well when used with chopped strand mat to fabricate large size objects, such as boat, vehicle components, pressure tank, house, etc. 8 oz. per square yard material wets out easily and is usually used between layers of mat for strong laminates Woven Roving cloth is a collection of specific numbers of untwisted continuous filaments. Because of higher fiber content, woven roving's lamination has excellent tensile strength and impact-resistant property. Woven Roving works well when used with chopped strand mat to fabricate large size objects, such as boat, vehicle components, pressure tank, house, etc. 8 oz. per square yard material wets out easily and is usually used between layers of mat for strong laminates.