07 31 00 Shingles and Shakes
07 31 23 Porcelain Enamel Shingles
07 31 13 Asphalt Shingles 07 31 13.13 Fiberglass-Reinforced Asphalt Shingles 07 31 16 Metal Shingles 07 31 19 Mineral-Fiber Cement Shingles 07 31 23 Porcelain Enamel Shingles 07 31 26 Slate Shingles 07 31 29 Wood Shingles and Shakes 07 31 29.13 Wood Shingles 07 31 29.16 Wood Shakes 07 31 33 Composite Rubber Shingles 07 31 53 Plastic Shakes
07 31 23 Porcelain Enamel Shingles
23 ManufacturersAgrob Buchtal
Alsecco airtec
Arto Brick & California Pavers
Castlerock formerly ICAP-USA/InsulStone
Cherokee Porcelain Enamel Corp.
Cladding Corp
Daltile
Elgin-Butler Brick Co.
EmilAmerica
Front-Tek
Glen-Gery Corporation
Innovative Metals, Co. (IMETCO)
Laminam USA Inc.
Levantina USA
Marble Trend Ltd.
Northern Facades - ISOclip
Nudo Products
Porcelanosa
Probe Construction Products Inc.
Telling Architectural Systems
TerraCORE Panels
Walker & Zanger Inc.
Westbrook Concrete Block