A new roof curb with integral 1- to 3-inch deflection isolation is available. Each isolation roof curb has external spring access for easy field adjustment and is shipped in one piece, up to _commercial-carrier limitations. Options include seismic calculations for all zones, wood nailers, duct supports to match all manufacturers' equipment, sound attenuation packages, increased heights, and pitched configurations for conventional and pre-engineered metal building roofs.

Roof Products Inc., 7616 Lee Highway, Chattanooga, TN 37421; (866) 500-8353; fax (423) 892-2107.

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