The flashing shall be a minimum of 4 inches 102 mm high and 4 inches 102 mm wide.
Felt roof flashing.
Although roof flashing is occasionally fabricated from plastic roofing felt or rubber it is usually made of rust resistant metal galvanized steel aluminum or copper.
Flashing tape is a waterproof flashing membrane that is used to seal openings in exterior walls preventing moisture from entering the area.
Flashing is installed to surround roof features such as vents chimneys and skylights.
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.
Drip edge metal valley flashing dormer chimney and kickout flashing are types of roof flashing that shed water away from the connections between roofs walls chimneys and other building assemblies.
Nail metal drip edge flashing which bends over the roof and down the edge of the facing board on all roof edges.
Installing roof felt is a two person job.
At the end of the vertical sidewall the step flashing shall be turned out in a manner that directs water away from the wall and onto the roof and or gutter while this is a nice diagram of how these flashings work don t forget our 5 th design rule.