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Your cart is empty.Important! Curb is not included. Your existing curb O.D. must be no more than the stated skylight size or it will not fit. Need a different size? Contact us via SIG Skylights Customer Service to discuss your application and to request a quote. Custom Skylights are our specialty! SIG Skylights are Beautiful, extremely Durable, and a Smart investment! They are backed by a Lifetime Warranty on the frame. They’re made with tempered, insulated glass that resists scratching and does not fade, haze, and easily crack like plastic skylights, making them a perfect no-maintenance replacement for acrylic dome or fiberglass skylights. The opening in each skylight matches the home’s finished opening – thus maximizing daylight into the home. The glass is specially tinted to conserve energy and reduce glare, heat gain, and UV damage. IMPORTANT! The SIG Curb Mount (CM) Skylight will fit over a curb with outside dimensions equal to the quoted skylight size. E.g. if the skylight is a CM 24x48 model, it will cover a 24” x 48” o.d. curb like a shoebox lid. The cover of the skylight will drop down 1” below the curb face for our regular CM models, and 2” below the curb face for our CM3 models. When INSTALLING SIG CM (curb mount style) skylights without an existing roof opening and curb, we recommend using a knowledgeable roofer or contractor familiar with installing skylights. Installation will require typical roofing tools and materials, including flashing. For FULL SUN locations and where glare, UV damage and heat gain are a particular concern, Solar Reflective glass is recommended. (CMBSC style). All of our skylights are manufactured in the USA by a Veteran Owned Business, of quality materials sourced in the USA.