Specifications: Continuous vaulted skylights shall be single glazed Model 300 (double glazed Model 301) as manufactured by Plasteco, Inc. (800-231-6117; Fax 713-453-8372). Curb (by others) shall have a minimum thickness of 1-1/2Ó. Each skylight shall consist of a pair of pre-assembled half domes (or vertical ends). The intermediate sections are shipped K-D with arch sections over nominal 4 ft spacing. Model 300 acrylic shall be clear, bronze or #2447 white translucent. Model 301 inner acrylic shall be clear or white translucent. Curb frame, inner and outer arch supports shall be mill finish 6063-T5 extruded aluminum. Curb frame shall have self-adjusting counter-flashing. All gaskets shall be black EPDM. Skylights are designed to support a 20 psf load.