Flat Roof Skylight Flashing

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.

Flat roof skylight flashing.

That s when the rubber roof gets attached to the flashing with adhesives. That is one of the more difficult areas to accomplish and to make sure it would last a long time without leaking. The flashing on these skylights are one piece. Preparing the flashing for a new rubber roof.

Skylights meant for a pitch roof will have step flashing. One solid piece of flashing. All seams are welded unlike glued. We offer a variety of skylight flashing systems to ensure a weathertight fit for virtually all roof types and slopes.

Epdm uses contact cement to glue the rubber to the metal. In the case of epdm rubber the flashing on the right will not work. Flat roof skylights should have one continuos piece of metal flashing around them. Welding the corners where the flashing meets the curb is necessary.

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. The curb flashing of a skylight is what could leak. It is critical to ensure that the roof membrane is properly attached to the flashing of the skylight. The corners of the flashing should be welded.

Skylight flashing systems are not required for pan flashed skylights or velux sun tunnel skylight. Velux skylight flashing kits are designed to shed water without relying on sealants that can break down over time. Just as crucial for a watertight seal the flashing must also be clean from debris or tar.