International trade association offers consumer resources, technical guides, directory of suppliers and installers, and maintenance recommendations.

Producers of premium laminated fiberglass shingles and fire-rated underlayment.

Manufacturer of heated shingle system for ice dam protection.

Residential and commercial roofing products.

Manufacturer of interlocking metal shingles.

Manufactures pre-stained cedar siding, cedar shingles and vinyl-cement siding.

Manufacturers and exporters of premium roofing products made from western red cedar. British Columbia, Canada.

Teal Cedar roofing shakes and cedar shingles, Western Red Cedar, fire retardant shingles, resawn shakes, fancy butts, and grooved shingles.

Manufacturer of metal roofing shingles and bay window kits.