I cut the tape so that it laps onto the housewrap above and 3 in.
Install flashing roof meets wall.
A headwall is a level junction where a roof meets a wall.
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 protects the gap where roofs meet walls by weaving into the roof shingles.
This illustration shows proper flashing at a headwall condition.
I use a wide piece of flexible flashing tape to protect the area between the subfascia and the wall.
Bend it back so that it overlaps the corner flashing.
Obviously the further up the wall a flashing extends the greater the resistance to water intrusion.
Begin by removing the shingles at the affected area and removing old flashing if present.
Likewise a 10 wide flashing will result in a 5 inch wide roof deck flange and a 5 inch vertical flange.
A 5 inch wide flashing will result in a 2 1 2 roof deck flange and 2 1 2 vertical wall flange.
Then nail the new l shaped flashing under the builder s felt but above the fascia board.
Even if one piece of step flashing fails the flashing and shingle below it start the process over again.
Then set the piece down.
Step flashing redirects the water back onto the shingle.
How to install step flashing with a wall corner step three.
Use roofing nails to install the l shaped flashing flush with the roof and wall then cover it with roofing cement and reattach the roofer s felt.
At the bottom of the roof water needs to be directed.
Click to enlarge make sure the sheathing wrap overlaps all step flashings.
Headwall flashing should extend up behind the exterior wall covering and down over the roof covering material as you see here.
Continuous flashing against a sidewall is one way to install a roof but it s not the correct way.
This is true no matter what type of roof covering material is installed.
Flexible flashing tape seals the eave to the wall.
That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above.
How to install roof flashing against a wall.
Above the roof sheathing.
Bend the roof edge of the flashing down over the peak and nail the wall side to the sheathing extending past the peak.
Where snow buildup is likely add a wide band of peel and stick membrane lapped over the step flashing but under the sheathing wrap.
Ensure it sits flat and extends at least 8 inches above the shingles.
Hammer one nail to the.
Kickout flashing keeps water out of walls rain should run off the roof and into the gutter.
Nail it in place with two nails one.
