How to Install a Skylight Tube

Bring loads of natural light into an interior space with a skylight tube. The idea of cutting a hole in a roof may be intimidating, but this project can be completed in a few hours with midlevel DIY skills.

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Assemble Top and Bottom of Skylight Tube

Using foil tape or duct tape, assemble top and bottom sections of skylight tube (Image 1). Pieces in kit should be labeled. If an extension is necessary, do not assemble it at this point.

Install Top (Roof) Portion of Skylight Tube

Use claw of hammer or pry bar to gently lift up shingles above cut hole and remove nails in order to accommodate plastic flashing piece that comes with kit. Using a caulk gun apply roofing cement liberally to bottom side of plastic flashing. Turn over and slide under loose shingles; line hole in flashing up with hole cut in roof. Secure with flashing screws and washers in marked locations. Slide top of tube into opening from roof (Image 1). Have assistant work inside attic to help with lowering tube into position (Image 2). Tip: For additional waterproofing, put a dab of sealant under each washer and around outside perimeter of plastic flashing.

Install Bottom (Ceiling) Portion of Skylight Tube

Screw ceiling trim piece into hole cut in ceiling (Image 1). In the attic, lock bottom portion of skylight tube into trim piece (Image 2).

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