How To Flash A Roof Curb On A Metal Roof

It cannot be flush mounted.

How to flash a roof curb on a metal roof.

Installation of velux skylights with edm metal roof flashing. Second the curb should be available in a variety of heights. Installation of velux skylights with edm metal roof flashing. We offer a variety of skylight flashing systems to ensure a weathertight fit for virtually all roof types and slopes.

This will ensure the roof flashing provides a watertight seal when installed on various roof pitches and accounts for any roof movement sharp says. Curb mounted means a box like structure constructed with 2 x 4 or 2 x 6 lumber that elevates the skylight off the roof deck. Duct hangers or full height cross members or insulated panels fabricated as needed to match rtu manufacturer s factory curb. Flashing a skylight may involve sealant as one line of defense against water infiltration but above all there must be good flashing.

Galvanized or 18 ga. A skylight in a metal roof must be curb mounted in order to be properly flashed. Ensure the roof flashing has the proper pleat design at the base. 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.

Most residential skylights sit on a raised curb made watertight with metal flashing. The curb allows the installer to install metal flashing for long lasting water shedding and leak free installation. A galvalume coated roof doesn t mean that a galvanized steel roof curb is the best thing to use in fact galvanized roof curbs are known to rust corrode and leak particularly along weld joints as soon as a year after installation. A roof flashing with aluminum on the base edges will ensure the product can be formed to the metal roof profile.

Rtu curb for metal roof features factory welded rib pockets to match roof welded water diverter and perimeter insulation. Roof curbs for standing seam metal roofs pick the proper material. Velux skylight flashing kits are designed to shed water without relying on sealants that can break down over time.