How To Install A Cricket On A Flat Roof

Any tapered foam roof system will be a vast improvement over an older flat roof design.

How to install a cricket on a flat roof.

Put metal flashing along the sides of the cricket nailed in place to overlap seams with the roof. Today firms make tapered roof insulation crickets that are pre cut. The roof shingles and step flashing are then replaced. A tapered roof cricket will protect the mortar and flashing of your chimney.

A roof cricket is a ridge structure designed to divert water on a roof. Roof surface slope the slope that is in the structural deck the slope created by tapered insulation or a combination of the two. Cricket width points c to d generally the shorter of the 2 cross sections. Install a waterproof membrane over the cricket sides and edges fastened to the cricket with a construction stapler.

Before installing a roof cricket you first should understand what it is and why it is important. Secure the plywood triangles to the roof decking and cricket ridge with galvanized screws. This cricket s components are four pieces made from 2 4 and 3 4 plywood. Benchmark foam expanded polystyrene eps crickets are used to divert water around rooftop units or obstructions correct differential heights of adjacent roof decks and.

The height should be at least as high as the slope in order to direct water away from the chimney so if the slope is 4 in 12 place. Roof crickets are found on the high side of a chimney or when one roof meets another. A cricket or saddle diverts water around the high point of a chimney or from one roof area to another. Both pieces are screwed tot he roof.

Cricket length points a to b generally the longer of the 2 cross sections. The roof cricket is normally the same pitch as the rest of the roof but not always. The lead counter flashing on the chimney will be installed next.