Within a shingle roof the flashing is expertly woven into the shingles or roofing materials to protect the seam between the chimney and the roof.
Roof to wood chimney chase flashing.
This design provides waterproofing at the exit point of a vent to divert water around the vent and to prevent water intrusion through the hole cut into the roof decking.
Step flashing step flashing is the flashing that is incorporated into the shingle.
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Here we are we re on the roof and we re looking at this chimney chase which is pretty typical to see on a roof.
Along the edges or closer if necessary to flatten the metal.
We make the cricket wider than the chase by about 6 inches on each side.
Seal the sides of the chimney with prebent pieces of step flashing under each course of shingles photos 4 and 5.
Extending the cricket past the corners helps divert water flowing down the roof away from the chase and also simplifies step flashing installation.
Slide the prebent and soldered chimney saddle into place behind the chimney.
Galvanized roofing nails about every 6 in.
The main component of chimney flashing consists of a flat base with a tapered cone.
The chimney chase has a saddle flashing in.
It can be made of a variety of materials depending on the type of roof and its pitch.