Flat Roof Skylight Flashing

It is essential when installing a skylight on a flat roof with curb flashing that is in one piece.

Flat roof skylight flashing.

When a skylight is installed on a flat roof then the flashing around it should be one solid piece. That is one of the more difficult areas to accomplish and to make sure it would last a long time without leaking. Skylight flashing systems are not required for pan flashed skylights or velux sun tunnel skylight. They are meant to be installed on a flat roof.

Skylights meant for a pitch roof will have step flashing. It is critical to ensure that the roof membrane is properly attached to the flashing of the skylight. Preparing the flashing for a new rubber roof. The curb flashing of a skylight is what could leak.

The flashing on these skylights are one piece. Epdm uses contact cement to glue the rubber to the metal. We offer a variety of skylight flashing systems to ensure a weathertight fit for virtually all roof types and slopes. Flat roof skylights should have one continuos piece of metal flashing around them.

One solid piece of flashing. In the case of epdm rubber the flashing on the right will not work. 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. That s when the rubber roof gets attached to the flashing with adhesives.

Just as crucial for a watertight seal the flashing must also be clean from debris or tar. The corners of the flashing should be welded. Welding the corners where the flashing meets the curb is necessary.