Deck-mounted skylight

A deck-mounted skylight is a skylight that attaches straight to the roof deck, the sheathing layer under the shingles. Instead of sitting on a raised frame or a separate curb, the unit is set into an opening cut through the roof and sealed to the deck with flashing. The result is a shallow profile that sits close to the roof surface.

The main thing that sets this type apart is the missing curb. A curb is the box-like frame that many skylights rest on, and it adds height and a separate set of seams to manage. A deck-mounted unit skips that step, so the shape stays low and the flashing is the main barrier against water. That lower profile is why homeowners and builders often choose it when they want a clean look on a pitched roof, or when there is limited space in the attic.

Because the unit depends on flashing and sealant rather than a raised curb, the quality of the roof-to-skylight connection matters a great deal. Shingle lap, underlayment, and step flashing all have to tie in correctly, especially in a humid, storm-prone area like Citrus County, where wind-driven rain and summer downpours test every seam. Installers who work this way usually have experience with the specific skylight brand and the roof framing involved.

If you are looking for a contractor who installs this type of skylight, the skylight installation providers listed in this directory are a good place to start.