The chimney chase has a saddle flashing in.
Roof to wood chimney chase flashing.
Seal the sides of the chimney with prebent pieces of step flashing under each course of shingles photos 4 and 5.
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.
It can be made of a variety of materials depending on the type of roof and its pitch.
Along the edges or closer if necessary to flatten the metal.
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.
Nail it to the roof along the top edge.
Extending the cricket past the corners helps divert water flowing down the roof away from the chase and also simplifies step flashing installation.
When we do a chase repair we usually rebuild or add a water diverter or cricket at the top see image 1.
The main component of chimney flashing consists of a flat base with a tapered cone.
Slide the prebent and soldered chimney saddle into place behind the chimney.
Galvanized roofing nails about every 6 in.
Step flashing step flashing is the flashing that is incorporated into the shingle.
Chimney flashing protects the structure of a roof at venting exit points for different roof types.