To remove 3400 sq. ft of existing roof covering, prepare wood decking to receive a new roof covering and install a "Class B" roof covering, based on Tbl 15-A, 1994 UBC. System to be per Item #1, pg. 151, 1995 UL Roofing Materials & Systems as manufactured by Dibiten USA. Consists of 2 plies base sheets, heat fused membrane and reflective coating. To be installed per manufacture's specs & Ch. 15, 1994 UBC. Upper 18 inches of parapet to have noncombustible finish (Sec. 709.4). Roof ventilation to comply with Sec. 1505.3 for 1 s.f. per every 150 s.f. of roof or portion thereof. drs