How To Install A Skylight On A Flat Roof Video

A step by step tutorial of how to replace a skylight on an existing flat roof of asphalt composition.

How to install a skylight on a flat roof video.

When a skylight is installed on a flat roof there will come a time when water is pooling around the curb flashing of the skylight. It is critical. Install from the bottom up lapping each piece on top of the lower one. Scrape off the roofing material at the skylight site and cut open the roof with a saw.

When flat roof doesn t have good drainage then water could pool around a skylight causing a leak in the weakest part of the roof. If necessary frame the light tunnel with 2x6 boards. This underlayment will direct any water that may get through the metal flashing onto the roofing felt. We had to tear out all of the old flashing.

Install header joists perpendicular to the existing roof joists at around the skylight hole. Proper flashing of a skylight is critical. Weave the step flashing up the side of the skylight as. Skylights for flat roofs.

Epdm uses contact cement to glue the rubber to the metal. Drop plumb lines from each corner of the hole to verify that it is in the right spot. Step 4 frame skylight. Watch this video to see how to install this skylight and the various steps to securing the roof window.

The curb flashing of a skylight is what could leak. On this project adam was called out to inspect leaks around a skylight. Install 6 in wide strips of a self sticking waterproof underlayment.