How To Install A Skylight On A Corrugated Metal Roof

If yours do not.

How to install a skylight on a corrugated metal roof.

Use 1 1 4 inch nails to cover the outline of the roof with strips of metal eave flashing also called edging. High performance glazing that stands up to punishing exterior applications. Circular saw 2 x research source slower than angle grinder but follow same step 2 pre drill holes on the ridges. Designed specifically to match up with sm rib and pbr r panels.

Set the skylight unit aside. Rest the skylight against the bottom edge of the opening first and then lower the light onto the roof. Paint or prime cut edges to prevent rust. For those who are unfamiliar with the term flashing it is a thin material usually galvanized steel that is used to direct water away from certain areas of the roof.

Install from the bottom up lapping each piece on top of the lower one. Use for skylights roof lights and sidelights. Up to 20 times greater impact resistance the highest light transmission rates the lowest yellowing index the highest load. If the skylight is curb mounted then you will need to lift window over the curbs and rest it on top of the sills.

This clip shows how you can easily install a polycarbonate. Mark an outline along the outer edges of the fins. Align the grooves on the skylight fins with the grooves on the corrugated roofing. Some panels have pre drilled holes.

Wear hearing and eye protection. Mark an outline along the outer edges of the fins with a felt tip marker. Allow for a minimum of 18 inches 46 cm if you need to lap to complete the run. Place the skylight unit on the roof at the desired location.

However the way your roof is flashed against the skylights will be one of the most crucial aspects of the installation process. Polycarbonate panels offer multiple advantages over traditional fiberglass panels. Step 1 cut the panels to the desired length. Install 6 in wide strips of a self sticking waterproof underlayment.

Angle grinder 1 x research source the fastest option. Place corner pieces where panels will meet bends at the edge of the roofing. If there are gutters installed on the eaves the eave flashing should be installed to overhang the lip of the gutter by about 1 2 inch. If you have to replace shingles around a skylight examine the old flashing.

Place the skylight unit on the roof at the desired location. Most panels come up to 32 feet 9 8 m in length. This underlayment will direct any water that may get through the metal flashing onto the roofing felt.