Roof Cricket Design Guide

Cricket valley slope is independent of the cricket.

Roof cricket design guide.

Click on the wall to select it and click the open object edit button. Roof pitch the metal roofing panels shown in this manual require a mini mum slope of 2 per foot to ensure proper drainage. 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. Since roof drains are rarely placed in the lowest point of a structural sloping roof deck crickets are usually needed.

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. A general rule for designing sufficient slope in crickets is that its slope shall be twice the slope of the adjacent roof field. Roof crickets can be covered with metal flashing or with the same material as the rest of the roof. The roof cricket is normally the same pitch as the rest of the roof but not always.

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. Design guidelines cricket panel slope is typically double the roof surface slope. The crickez system helps to simplify roof crickets with quicket. Refer to the rain carrying table in this booklet for the maximum allowable panel length per slope that will provide adequate drainage.

Select build wall exterior wall and draw a wall inside the area of the roof cricket on the floor below parallel to its front. Construction that is found to be outside the require. Typically that will keep water from remaining on the cricket surface. 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.

The functionality of the cricket is determined by the cricket valley slope. When designing a cricket two items need to be designed slope and configuration of the cricket. Tapered roof insulation and crickets are designed to provide effective drainage for epdm tpo pvc and built up bur membranes. Roof crickets are found on the high side of a chimney or when one roof meets another.

Depending on the roof surface slope there is an accepted maximum length to width ratio. For longer slopes and lower roof pitches contact fabral for other suitable profiles.