Roof To Wood Chimney Chase Flashing

Step flashing step flashing is the flashing that is incorporated into the shingle.

Roof to wood chimney chase flashing.

Galvanized roofing nails about every 6 in. Nail it to the roof along the top edge. 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.

We make the cricket wider than the chase by about 6 inches on each side. 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. The chimney chase has a saddle flashing in.

When we do a chase repair we usually rebuild or add a water diverter or cricket at the top see image 1. 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. Extending the cricket past the corners helps divert water flowing down the roof away from the chase and also simplifies step flashing installation. Seal the sides of the chimney with prebent pieces of step flashing under each course of shingles photos 4 and 5.

Chimney flashing protects the structure of a roof at venting exit points for different roof types.