Along the edges or closer if necessary to flatten the metal.
Roof to wood chimney chase flashing.
When we do a chase repair we usually rebuild or add a water diverter or cricket at the top see image 1.
It can be made of a variety of materials depending on the type of roof and its pitch.
Step flashing step flashing is the flashing that is incorporated into the shingle.
Extending the cricket past the corners helps divert water flowing down the roof away from the chase and also simplifies step flashing installation.
Tools you will need for roofing from amazon bostitch coil nailer https amzn to 2u1v8e2 shingle remover https amzn to 2fzu5wf roof snake https amzn to 2.
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.
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.
Slide the prebent and soldered chimney saddle into place behind the chimney.
Nail it to the roof along the top edge.
Galvanized roofing nails about every 6 in.
Seal the sides of the chimney with prebent pieces of step flashing under each course of shingles photos 4 and 5.
We make the cricket wider than the chase by about 6 inches on each side.
The main component of chimney flashing consists of a flat base with a tapered cone.