Bases for secure rooftop mounting of equipment are quickly manufactured to precise specifications of rooftop units and roof configurations. Delivery is usually within two weeks after receipt of the order. Bases are all-welded construction and are shipped to the jobsite in one piece if trucking permits. If the unit is not able to be shipped in one piece, all corners are welded and the number of pieces are kept to a minimum. Options include a built-in roof pitch, extra height for installation of sound traps beneath the unit, and a pressure-treated wood nailer.

Thybar Corp., 913 South Kay Ave., Addison, IL 60101; 800-666-2872; 630-543-5309 (fax);

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