Flashing Skylights On Steel Roofs

Most residential skylights sit on a raised curb made watertight with metal flashing.

Flashing skylights on steel roofs.

It is found attached to plumbing vent stacks chimneys fan vents and roof valleys. Flashing a skylight may involve sealant as one line of defense against water infiltration but above all there must be good flashing. Velux edm deck mount skylight flashing is designed velux edm deck mount skylight flashing is designed to work with metal roofing. Velux skylight flashing kits are designed to shed water without relying on sealants that can break down over time.

Skylights for flat roofs when a skylight is installed on a flat roof then the flashing around it should be one solid piece. Where to place skylights. It cannot be flush mounted. A raised curbed structure is mounted in into the space cut out of the metal roofing material and the skylight is attached to it.

Standard skylights for metal roofs tend to be curb mounted. The sill apron features pliable pleats that form to the roof and the kit includes adhesive underlayment that provides an additional layer of water protection for a weathertight installation. Today it s possible to get curbed skylights for metal roofs in a growing variety of sizes and shapes. If it s carefully removed when the old roof is torn off it should be reusable.

It s possible for an experienced installer to retrofit flashing and install a typical skylight on corrugated metal. However a home improvement enthusiast should install a skylight that s designed. We offer a variety of skylight flashing systems to ensure a weathertight fit for virtually all roof types and slopes. What you ll need although roof flashing is merely the addition of a flattened galvanized steel or aluminum sheet over joints in the roof it plays a critical role in the defense against water leaks.

That s when the rubber roof gets attached to the flashing with adhesives. If not you ll have to buy new flashing 50 to 100 either from the skylight manufacturer or from a roofing company that has a metal fabrication shop look under roofing in the yellow pages or online. While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately. Skylight flashing systems are not required for pan flashed skylights or velux sun tunnel skylight.

Epdm uses contact cement to glue the rubber to the metal. Metal roofing manufacturers can explain how to flash their products against skylights and other protrusions.