How To Install A Skylight On A Flat Roof Video

Skyview is our most popular fixed flat roof skylight.

How to install a skylight on a flat roof video.

Weave the step flashing up the side of the skylight as. It is critical. Skylights for flat roofs. Epdm uses contact cement to glue the rubber to the metal.

Step 4 frame skylight. That s when the rubber roof gets attached to the flashing with adhesives. When a skylight is installed on a flat roof then the flashing around it should be one solid piece. Install 6 in wide strips of a self sticking waterproof underlayment.

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. If necessary frame the light tunnel with 2x6 boards. We had to tear out all of the old flashing. Scrape off the roofing material at the skylight site and cut open the roof with a saw.

Install header joists perpendicular to the existing roof joists at around the skylight hole. Install from the bottom up lapping each piece on top of the lower one. 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. This underlayment will direct any water that may get through the metal flashing onto the roofing felt.

Drop plumb lines from each corner of the hole to verify that it is in the right spot. Proper flashing of a skylight is critical. A step by step tutorial of how to replace a skylight on an existing flat roof of asphalt composition.