Kalwall offers a wide range of pre-engineered skyroofs including: shed Roofs, ridge Roofs, pyramids, barrel vaults, low-profile vaults. Our panels are so lightweight compared to glass, at less than 3 lbs/ft2, support framing requirements are minimized. Only thrust-bearing curbs designed to accommodate local live, snow and wind load designs are required. Clearspans up to 24′ are possible, depending on load and slope, without additional support framing. Our rugged skylights are all mansafe and OSHA fall thru compliant, meaning no safety cages required, another cost savings. Centerline, self-supporting ridge skylights with 20°, 27°, 33°, or 45° slope to 24′. Our Kalcurve® 180° and low-profile 90° come in one foot curb width increments.