Roof Cricket Design Guide

A roof cricket is a ridge structure designed to divert water on a roof.

Roof cricket design guide. A general rule for designing sufficient slope in crickets is that its slope shall be twice the slope of the adjacent roof field. Select build wall exterior wall and draw a wall inside the area of the roof cricket on the floor below parallel to its front. Place shingles over the cricket and nail them into place with roofing nails beginning against the back edge of the chimney and going up toward the top of the box that you cut into the roof. Roof crickets are found on the high side of a chimney or when one roof meets another.

For longer slopes and lower roof pitches contact fabral for other suitable profiles. Since roof drains are rarely placed in the lowest point of a structural sloping roof deck crickets are usually needed. Design guidelines cricket panel slope is typically double the roof surface slope. Supports roof corners deck perimeter penetrations and side laps you should bring the concerns to the owner general contractor roof system designer or roof deck installer to confirm the steel roof deck has been installed according to sdi fm global or other specified guide line.

Roof crickets can be covered with metal flashing or with the same material as the rest of the roof. Cricket valley slope is independent of the cricket. Depending on the roof surface slope there is an accepted maximum length to width ratio. When designing a cricket two items need to be designed slope and configuration of the cricket.

Typically that will keep water from remaining on the cricket surface. The crickez system helps to simplify roof crickets with quicket. Tapered roof insulation and crickets are designed to provide effective drainage for epdm tpo pvc and built up bur membranes. The roof cricket is normally the same pitch as the rest of the roof but not always.

Polyiso xps and eps roof insulation all work well with quicket. Roof pitch the metal roofing panels shown in this manual require a mini mum slope of 2 per foot to ensure proper drainage. Click on the wall to select it and click the open object edit button. The slope that is created by the structure i e concrete steel or wood etc tapered insulation or a combination of the two.

If you draw the wall in the wrong direction and its siding layer faces the interior select it and click the reverse layers edit button. Distance between points 1 and 2 the slope created along the valley edge of the cricket as a result of the cricket width length angle and the roof surface slope.