Vaulted dome skylight

Claim 1

A vaulted dome skylight for covering an opening defined by a support curb and comprising: a single piece sill extending about all sides of the support curb, means securing the single piece sill to the support curb, an inner dome means having opposite end flanges, an outer dome means having opposite end flanges, a retaining means for securing the domes over the sill including an end retainer one at each end of the sill having one leg secured to the sill and a second horizontally disposed leg contacting and overlying the dome end flange, said sill having a horizontally disposed base secured to the curb frame and inner and outer angularly disposed channel members for respectively receiving said inner and outer domes along the sides thereof, said inner and outer dome means each comprising a plurality of dome sections with only the end ones thereof having said end flange, at least one intermediate support rib for supporting adjacent dome sections and extending substantially normal to the sill sides, a cap band secured over and to said support rib, a first gasket means disposed at said support rib and between said dome means, a support member and means securing the support member to the sill to maintain the support member in a position to hold the intermediate support rib in place, and a second gasket, one disposed at each end of the sill, arranged intermediate the outer channel member of the sill and the underside of the inner dome end flange.