Framing And Roof Crickets

You will need to use compound miter cuts for the cricket rafters.

Framing and roof crickets. This beam will provide the backbone for the cricket or saddle. Ok so a four foot wide chimney has a span of 4 foot and half of that is the run which is 2 foot. Do not check build roof planes. 2x8 sleepers should be nailed to the roof surface to pick up the ends of the rafters.

Secure the plywood triangles to the roof decking and cricket ridge with galvanized screws. This also makes it easier. Always frame the cricket at the same pitch as the roof and you will be within code guidelines. In this example a pitch of 12 12 and 1 1 2 x 5 1 2 rafters are specified.

Select build roof build roof from the menu and in the build roof dialog specify the pitch framing and any other attributes that you will need for the cricket. Put metal flashing along the sides of the cricket nailed in place to overlap seams with the roof. Install a waterproof membrane over the cricket sides and edges fastened to the cricket with a construction stapler.