Flat Roof Skylight Flashing

The curb flashing of a skylight is what could leak.

Flat roof skylight flashing.

The corners of the flashing should be welded. Epdm uses contact cement to glue the rubber to the metal. They are meant to be installed on a flat roof. It is critical to ensure that the roof membrane is properly attached to the flashing of the skylight.

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. That s when the rubber roof gets attached to the flashing with adhesives. 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.

It is essential when installing a skylight on a flat roof with curb flashing that is in one piece. Just as crucial for a watertight seal the flashing must also be clean from debris or tar. 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. In the case of epdm rubber the flashing on the right will not work.

Preparing the flashing for a new rubber roof. The flashing on these skylights are one piece. When a skylight is installed on a flat roof then the flashing around it should be one solid piece. All seams are welded unlike glued.

Velux skylight flashing kits are designed to shed water without relying on sealants that can break down over time. 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.