How To Install Skylight Through Attic

Then lay sheathing around the hole to prevent water leakages before inserting the skylight.

How to install skylight through attic.

Next drive 4 deck screws through the roof from the inside to hold the skylight in place. Use the hole as a reference only because the skylight location should be adjusted to match up with the rafters. Install the skylight according to the model specifications. Depending on the circumstances such as roof pitch interior light shaft depth and shape and weather installations can take between half a day and three days.

A chase is a framed tunnel that channels light from the skylight through your attic space to the ceiling below. Install the flashing from the roof of the home and be sure not to attempt this step of the project alone. Cut the extensions at a 45 degree angle out from both corners of the skylight. Finish the interior installation process last and check all seals before tackling any paint and plaster touch ups.

Cover the bottom flange with a strip of membrane that extends 6 inches past the skylight s sides. Perform a water test. Drill a hole through the roof at about the center of the skylight. Go into the attic.

A skylight installation happens in two phases. If you re not familiar with basic carpentry practices or you are installing a large skylight that will require the removal of more than one roof rafter consult a professional builder. Cover the side flanges then the top in the same way. Because it s complex to build it adds about 1 500 to a professional installation.

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.