Vent pipe flashing fits over flues or pipes.
Roof to wall flashing over shingles.
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.
Also consider ice guards even if you don t have gutters.
Step flashing should be installed as individual pieces for each course of shingles starting at the bottom of the chimney or wall.
Apply a shingle then a piece of flashing then a shingle and so on so that each piece of flashing rests on top of the lower course and is covered by the upper course.
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.
Step flashing fits to each course of shingles and appears to step up the wall of the chimney.
Flashing should overlap the roof covering material but on asphalt shingle roofs for aesthetic reasons the part of the headwall flashing that extends down over asphalt shingles is often covered with a course of shingle tabs.
Begin by removing the shingles at the affected area and removing old flashing if present.
Have to pull some nails if the shingles are existing.
Step flashing step flashing redirects the water back onto the shingle.
Step flashing is made up of each piece is slid under a shingle tab going up the roof.
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.
Then nail the new l shaped flashing under the builder s felt but above the fascia board.
In some cases you ll have to remove the siding.
Where you meet a chimney or side wall install step flashing.
Do a google and.
The shape of vent flashing is typically a cylinder with a wide flange at the base which is lapped into the shingles as the roofing is installed.
All of the edges must be wrapped with flashing which improves the appearance and provides resistance against rain snow and wind.
Even if one piece of step flashing fails the flashing and shingle below it start the process over again.
To make corner flashing take your tin snips and cut a 45 degree line from an outside corner to the center fold.
Don t mistake this condition for headwall flashing routed beneath the shingles and call it a defect.
How to install roof flashing against a wall.
The correct way to flash at the shingles in the area you indicated is using step flashing.
