How To Flash A Flat Roof

How to install step flashing with a wall corner step three.

How to flash a flat roof.

Details concrete masonry roofing wrb flashing. Two ways to flash roof edges. Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing. Once you ve added the framing it s time to add a layer of 5 8 inch plywood sheathing.

The 8 step process for diy installation. One common method is to lay the edge metal under the eaves membrane and over the rake. This material is available with a v or w shaped profile and is placed over the top of the building felt before the roof s finishing material is installed. Step flashing protects the joints between the roof deck and chimneys or dormers.

This can be a source for anything from smoke to steam. Nail it in place with two nails one. Look for the chimney or any type of pipe coming out of the building. One important and perhaps not so obvious fact is that a flat roof is not actually flat.

Look for any type of vents as well. Hammer one nail to the. Val ley flashing protects the valleys where two roof planes meet. Ensure it sits flat and extends at least 8 inches above the shingles.

When fitting cover flashings to a flat roof like the one pictured bottom right there is no need for the third covering angle of lead the lead is simply cut just above the flat roof to stop capillary action and the flashing cutting into the flat roof itself. Locate all of the areas around the flat roof where water can potentially enter. That would be. Bend it back so that it overlaps the corner flashing.