Summit® 60 and Summit® 180 synthetic underlayments are ideal for standard application for steep-slope roof assemblies. They are premium quality synthetic roof underlayments that provide 10 squares per roll, a benefit to wholesalers, shippers and installers alike. Woven scrim synthetic roof underlayment enhances tear resistance and lays flat while guarding against moisture and mold growth.

WeatherMaster® self-adhesive underlayment features an SBS-modified asphalt membrane, providing a secondary layer of waterproofing protection against damage caused by extreme weather. This specialty underlayment is designed to go under several types of steep-slope roofing materials, including asphalt shingles, metal roofs and tile.

Gorilla Guard® 30 is designed to outperform traditional felt roof underlayment by combining specially developed additives with glass fibers. The superior quality, time and labor saved by using Atlas engineered underlayment encourages more contractors to offer it to customers as a standard product rather than as an upgrade to traditional felt.

Atlas inorganic fire retardant underlayments, or slipsheets, enhance the overall fire performance of many conventional commercial roof insulation systems, including metal roofs.

Central States Manufacturing offers a selection of metal roofing panel profiles.

Horizon-Loc™ is a durable concealed fastener roof system with easy snap together installation. This architectural panel system uses minimally visible fasteners, giving your building a clean, attractive finish.

Panel-Loc Plus™ is a low rib (3/4") panel which provides durable performance with an added striation on top of the rib that gives it even more strength. Panel-Loc Plus™ gives agricultural and light commercial projects, as well as residential roofs, the protection of steel with an attractive appearance.

Panel-Loc™ is a low rib (5/8") panel that is best used for post frame barns and buildings, as well as residential roofing. Panel-Loc™ is available in 26 and 29 gauge steel.