Then nail the new l shaped flashing under the builder s felt but above the fascia board.
Wall to roof flashing installation.
To make corner flashing take your tin snips and cut a 45 degree line from an outside corner to the center fold.
But it doesn t work that way.
When fitting flashings to flat roofs no overlap onto the roof is required as the roof itself will have it s own upstand flashing built into it.
Continuous flashing against a sidewall is one way to install a roof but it s not the correct way.
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.
Begin by removing the shingles at the affected area and removing old flashing if present.
Measure the length of the porch roof joint to determine how much flashing you will need.
Place a kick out flashing at the base of the roof and flush against the wall.
Once even a small section of roofing cement fails you ll have a leak.
If siding on.
It may seem as if a single piece of flashing would offer more protection than many pieces of step flashing.
Under the eaves of a roof with little overhang and no gutters.
In wall areas frequented wetted by splashing rain splashback or snow buildup flashing membranes up to 36 inches wide can be used to protect the wall sheathing and structure.
All the same rules of flashing apply except only the measurements of chase depth and drop are required.
Place the first piece of step flashing over the end of the tarter strip.
Now install the kickout flashing and step flashings up the roof as needed.
Install the step flashing before running the first row of shingles install a piece of step flashing along the sidewall so that it sits tightly against the roof.
The wall leg of the kickout should be applied over the housewrap cut a 2 ft square piece of housewrap and tuck one edge into the horizontal cut the same one the first piece of housewrap was slipped into and up under the housewrap on the wall by at least 5 in.
If you already have faulty flashing installed you must remove it.
Ensure that the step flashing will lead the water directly into the kick out flashing.
Tape over the cut in the housewrap with housewrap tape.
Water damage from splashback is common in wall areas lo cated.
Each additional rain adds more water and before you know it you ve got rotted wood.
Install your underlayment completely and your shingles up to where the wall begins so that the first piece of flashing or the corner flashing will rest on a shingle.
Remove the flashing and apply some roofing cement to fix the flashing into place.
Align the step flashing with the leading edge of the starter course and nail it in place using one nail in the upper corner.