Ideally this should be 150mm or a minimum of 75mm again common sense and exposure applies.
Flashing on flat roof wall.
Here s how to install it correctly.
The flashing needs to be installed before installing the roof shingles the metal flashing is formed with a hook edge and cleated on 12 centers the flashing extends up the wall at least 4 the flashing extends onto the roof a minimum of 2 inches 4 inches is preferable in more severe climate areas.
Most simply use a nominal 6 piece of lumber.
Vent flashing done right to prevent leaks back up roof vent boots with flashing counterflashing and proper shingling.
This drip edge flashing provides protection from water damage along the eaves and rake of a roof.
Gibraltar drip edge flashing can be used with asphalt shingles or metal roofing panels.
Velux c01 c04 c06 shingle roof aluminum deck mount skylight flashing kit.
Installing step flashing to prevent roof leaks step flashing spans the joint between roof shingles and an adjacent side wall.
Roofs peel off from the edges so it is critical to hold them tight with the roof deck sealed on the outside we turn to flashing the edges with metal and membranes metal drip edge flashing details roofing wrb flashing two ways to flash roof edges.
The extra kick at the bottom of the face directs run off away from the structure.
Jamsill guard sill pan flashing 4 5625 in x 40 in plastic step flashing.
The roof flashing is then placed up behind this through the wall z bar flashing on the outside of the vertical blocking backing material.
Model edl c06 0000b.
Because most roof flashing is required to extend up the wall a minimum of 4 and some a minimum of 5.
Flat roof flashing this could virtually be any type of flat roof the upstand of the flat roof covering is overlapped by the drop of the flashing.
Here is a guide on how to install lead flashing to your roof.
It may be quite a labor but it pays off with a strong roof.
Lead flashing maximum length.