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.

The corners of the flashing should be welded. It can be installed on a flat roof at 0 up to a 60 roof pitch on a site built curb. Flat roof skylights should have one continuos piece of metal flashing around them. That s when the rubber roof gets attached to the flashing with adhesives.

Skylight flashing systems are not required for pan flashed skylights or velux sun tunnel skylight. The flashing on these skylights are one piece. Install from the bottom up lapping each piece on top of the lower one. They are meant to be installed on a flat roof.

In the case of epdm rubber the flashing on the right will not work. Welding the corners where the flashing meets the curb is necessary. Using tar on skylight flashing is not the way go. If you have to replace shingles around a skylight examine the old flashing.

Epdm uses contact cement to glue the rubber to the metal. The correct way to do it is to use rubber membrane. We offer a variety of skylight flashing systems to ensure a weathertight fit for virtually all roof types and slopes. This underlayment will direct any water that may get through the metal flashing onto the roofing felt.

Velux skylight flashing kits are designed to shed water without relying on sealants that can break down over time. That is one of the more difficult areas to accomplish and to make sure it would last a long time without leaking. Install 6 in wide strips of a self sticking waterproof underlayment. Just as crucial for a watertight seal the flashing must also be clean from debris or tar.

Repairing skylight flashing on flat roofs can be challenging. When a skylight is installed on a flat roof then the flashing around it should be one solid piece.