Flashing Between Roof And Wall

A sidewall is a junction between a wall and a sloped portion of a roof.

Flashing between roof and wall.

Proper roof wall flashing example. To install the roof wall flashing above the builder bent the top edge of the flashing into a 90 degree lip about 2 cm in width. Step flashing installed as each course of shingles is installed involves placing an individual piece of metal flashing bent at a right angle against the building wall extending up the wall 4 and onto the roof a minimum of 2 4 is preferable. Except where walls are brick the vertical part of the sidewall flashing should extend up behind the exterior wall covering just like with headwalls.

I cut the tape so that it laps onto the housewrap above and 3 in. That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above. If there were no flashing against these walls water could slowly drip into the crevice between the wall and the roof and potentially into the home. Once the flexible flashing is set i apply a piece of housewrap along the wall where the fascia.

I use a wide piece of flexible flashing tape to protect the area between the subfascia and the wall. The horizontal part of the flashing will vary depending on the type of roof covering material. Damaged or improperly installed roof flashing especially around the chimney or dormer is one of the most common causes of roof leaks.