Flashing A Skylight On A Flat Roof

Velux standard flashing is available in one colour only.

Flashing a skylight on a flat roof.

That s when the rubber roof gets attached to the flashing with adhesives. In the case of epdm rubber the flashing on the right will not work. Proper flashing of a skylight is critical. One solid piece of flashing.

When a skylight is installed on a flat roof then the flashing around it should be one solid piece. Install rigid insulation inside the light tunnel to prevent condensation and heat loss. The skyspan pitch adaptor flashing lifts the skylight on the top side so that it s pitched greater than 15. This is what the curb flashing looks like before the membrane is attached.

Skylights meant for a pitch roof will have step flashing. Welding the corners where the flashing meets the curb is necessary. The top head flashing is one piece that wraps around the sides. Epdm uses contact cement to glue the rubber to the metal.

That is one of the more difficult areas to accomplish and to make sure it would last a long time without leaking. When a skylight is installed on a flat roof there will come a time when water is pooling around the curb flashing of the skylight. It is critical to ensure that the roof membrane is properly attached to the flashing of the skylight. We had to tear out all of the old flashing.

Preparing the flashing for a new rubber roof. In some cases a skylight is set up on a curb that is flashed with continuous flashing along the base step flashing up the sides and saddle flashing across the top. Just as crucial for a watertight seal the flashing must also be clean from debris or tar. On this project adam was called out to inspect leaks around a skylight.

This fabricated piece has soldered and sealed seams and corners. Fit and install the next row of shingles leaving about 1 2 in. The flashing on these skylights are one piece. Flat roof skylights should have one continuos piece of metal flashing around them.

Skyspan custom pitch adaptor flashings for velux pitched roof skylights and for velux flat roof skylights are available. Skylights are typically manufactured with their own integral metal flashing a flat metal flange that extends from the body of the skylight and tucks underneath the roof shingles. If you have to replace shingles around a skylight examine the old flashing. Use a single piece of flashing in the front and step flashing up the sides of the curb.

Step 6 install flashing and insulation. Install sheet metal flashing over a water and ice barrier around the perimeter of the skylight. Velux standard flashing has no option to match roof colour.