Sun-Tek Skylights, Orlando, has designed a multiple tubular-skylight system. The Spyder can deliver natural light to different rooms within the home through one roof opening. Since as many as four tubes can be attached to the curb-mounted skylight and frame, this system offers the maximum amount of natural light with the minimum amount of roof penetration. The durable polycarbonate product can be used in new construction or retrofit on any type of roof.