Curb Mounted Skylights

Southeastern Insulated Glass (SIG) manufactures two curb mount styles, CM and CM3. Think of our CM series as a shoe box lid, with the existing curb as the box. The CM will drop down 1” from the top of the curb, and CM3 will drop down 2” over the curb. Carefully measure the outside dimension of the curb, including any flashing material. We will build the skylight cover to fit.

We specialize in custom size and custom shape skylights. Check out our Custom Size and Shape Skylights for more info and ideas.

Replacement of curb mounted (CM & CM3) skylights requires the careful measurement of the outside of the curb and flashing. When replacing some plastic bubble skylights, you may find a re-usable curb. Examine the curb carefully. Some methods of manufacture form two brakes that provide a top flat surface and then a down leg to which the retaining ring is fastened. The curb rising from the roof will be smaller than the outside of the retaining leg and the overall size of the glazing.

Tempered insulated glass is the premier choice for residential skylight glazing. It stays transparent, strong and provides for an energy efficient skylight. Moreover, glass will not crack, haze or become brittle from UV exposure like plastic will.

Our stock glazing choice is double paned, tempered, insulated glass with a bronze tint – a cost effective choice to reduce glare, UV and heat gain. Other glass choices are available for specific applications such as direct sun or heavy shade, or hurricane prone areas.

SIG provides a limited lifetime warranty against manufacturing defects on the skylight frame.

​Our curb mounted skylight frames are made with heavy, 6063-T5 aluminum, and are so durable they have a Limited Lifetime Warranty. They are not constructed with wood, which can rot, nor plastic, which will degrade in the sun. Aluminum will not crack from weathering.