Metal Roof Flashing Around Skylight

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

Metal roof flashing around skylight.

The edge of the roof has thin metal flashing that helps water drip off. Deduct the width of the fins on each side of the skylight and mark another outline on the roof to define the area to. You will need one roof flashing for each side of your skylight. Measure the length and the height of the sides of the skylight.

Cut the metal flashing based on the length you determined but adding an extra two inches. A skylight in a metal roof must be curb mounted in order to be properly flashed. Most residential skylights sit on a raised curb made watertight with metal flashing. If it s carefully removed when the old roof is torn off it should be reusable.

Metal roofing manufacturers can explain how to flash their products against skylights and other protrusions. First remove the skylight s counterflashing. Align the grooves on the skylight fins. Apply 100 silicone caulking tube to seal leaks around the skylight lens.

Good luck with your project. It cannot be flush mounted. Open valleys have metal flashing to protect this critical area of the roof. Most major skylight manufacturers provide flashing kits for asphalt shingles as well as specialty flashings for tile and metal roofing typically with a wraparound head flashing and moldable apron flashing that conforms to the roofing profile.

While some skylight manufacturers include flashing in their products sometimes roofing professionals. Try making the easier repairs with roofing cement or silicone caulking first before tackling more difficult fixes like replacing the flashing. Flashing a skylight may involve sealant as one line of defense against water infiltration but above all there must be good flashing. This ensures that the overlap at the seams face downwards.

The top of the flashing must be secured. How to put a skylight in a corrugated metal roof 1. The more sides and the longer your skylight has the more roof flashing you will need. Step 2 prepare the metal flashing.

We offer a variety of skylight flashing systems to ensure a weathertight fit for virtually all roof types and slopes. 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. Skylight flashing systems are not required for pan flashed skylights or velux sun tunnel skylight.