How To Install A Skylight On A Corrugated Metal Roof

Use for skylights roof lights and sidelights.

How to install a skylight on a corrugated metal roof. Up to 20 times greater impact resistance the highest light transmission rates the lowest yellowing index the highest load. High performance glazing that stands up to punishing exterior applications. This underlayment will direct any water that may get through the metal flashing onto the roofing felt. Most panels come up to 32 feet 9 8 m in length.

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. Place corner pieces where panels will meet bends at the edge of the roofing. Step 1 cut the panels to the desired length. Set the skylight unit aside.

Align the grooves on the skylight fins with the grooves on the corrugated roofing. Rest the skylight against the bottom edge of the opening first and then lower the light onto the roof. Place the skylight unit on the roof at the desired location. Use 1 1 4 inch nails to cover the outline of the roof with strips of metal eave flashing also called edging.

Install 6 in wide strips of a self sticking waterproof underlayment. This guide presented by kyal kara from the block demonstrate the basics to installing velux skylights into a pitched metal roof with custom flashing whi. Align the grooves on the skylight fins with the grooves on the corrugated roofing. Wear hearing and eye protection.

If yours do not. Designed specifically to match up with sm rib and pbr r panels. Allow for a minimum of 18 inches 46 cm if you need to lap to complete the run. Paint or prime cut edges to prevent rust.

Place the skylight unit on the roof at the desired location. If the skylight is curb mounted then you will need to lift window over the curbs and rest it on top of the sills. Some panels have pre drilled holes. Skylights for corrugated metal must be slid under the upper flap of the roof.

Mark an outline along the outer edges of the fins with a felt tip marker. Angle grinder 1 x research source the fastest option. Circular saw 2 x research source slower than angle grinder but follow same step 2 pre drill holes on the ridges. 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.

Install from the bottom up lapping each piece on top of the lower one. Mark an outline along the outer edges of the fins. However the way your roof is flashed against the skylights will be one of the most crucial aspects of the installation process.