How To Install Skylight Through Attic

Cover the side flanges then the top in the same way.

How to install skylight through attic.

Wrap the top part around the skylight s frame as shown and press the other part against the roof. Go into the attic. Finish the interior installation process last and check all seals before tackling any paint and plaster touch ups. Typically it s finished with drywall and painted.

Cut the extensions at a 45 degree angle out from both corners of the skylight. Cover the bottom flange with a strip of membrane that extends 6 inches past the skylight s sides. Install the flashing from the roof of the home and be sure not to attempt this step of the project alone. Install the skylight according to the model specifications.

Next drive 4 deck screws through the roof from the inside to hold the skylight in place. A chase is a framed tunnel that channels light from the skylight through your attic space to the ceiling below. Perform a water test. Then lay sheathing around the hole to prevent water leakages before inserting the skylight.

To install a skylight start by cutting a hole through the roof and ceiling from the outside that s large enough to hold the skylight. A skylight installation happens in two phases. Drill a hole through the roof at about the center of the skylight. If the skylight is mounted above an attic you ll also need to cut and frame a hole in the ceiling of the room below it and frame a light shaft through the attic.

Because it s complex to build it adds about 1 500 to a professional installation.