The flashing shall be a minimum of 4 inches 102 mm high and 4 inches 102 mm wide.
Roof vent flashing over or under felt.
If the felt butts into a wall that has flashing on it and the wall is running perpindicular to the felt the felt is typically placed under the flashing.
But over the underlayment along the rake edges of the roof.
Does drip edge go over or under felt.
Flashing is installed to surround roof features such as vents chimneys and skylights.
Cap flashing mortared or caulked into the chimney laps over the top edges of the other flashings to prevent water from running behind them.
Understanding the proper way to install the drip edge will only get you so far.
Continuous flashing protects the joint between a vertical wall and a sloped roof.
Drip edges prevent water from seeping under roofing along the edges of rakes and eaves.
According to most building codes and manufacturer recommendations the drip edge should be installed beneath the underlayment along the eaves of the roof.
Step flashing protects the joints between the roof deck and chimneys or dormers.
Then the felt would be under the flashing.
Step flashing fits to each course of shingles and appears to step up the wall of the chimney.
After this lines should be snapped every 34 as you move up the roof.
They re applied under roofing felt along eaves and over roofing felt along rakes.
Depending on the width of the pipe you may need to tear away a segment or two of the rubber boot.
Once you have installed shingles just past a plumbing vent install the flashing piece so it will lie on top of roofing at its bottom but be covered with roofing at its top.
Before laying roof felt all rotten decking must be replaced.
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.
Drip edges on the eaves any valley liners and all flashing should be installed before the tar paper is laid.
Roof flashing is a thin material usually galvanized steel that professional roofers use to direct water away from critical areas of the roof wherever the roof plane meets a vertical surface like a wall or a dormer.
Chalk lines should be snapped 33 5 8 above the eave line.
Begin by removing the shingles at the affected area and removing old flashing if present.
Lay it over metal flashing edges around vents and pipes.
Then nail the new l shaped flashing under the builder s felt but above the fascia board.
