Roof Cricket Slope

Cricket panel slope is typically double the roof surface slope.

Roof cricket slope.

Quicket material slope of per foot combines with and reverses the deck slope to net a per foot finished slope. Mark the height of the cricket on the back edge of the chimney. The roof cricket is normally the same pitch as the rest of the roof but not always. The manufactured slope of the cricket panel.

Installing a roof cricket. For steep slope roof systems ibc 2018 provides for a 1 12 minimum roof slope for mineral surfaced roof roll roofing. Below are some. Roof crickets are found on the high side of a chimney or when one roof meets another.

The shaded cells once again represent a properly designed cricket based on our previously stated criteria providing a slope of 1 8 inch per foot plus or minus 10 percent. The functionality of the cricket is determined by the cricket valley slope. And 4 12 minimum roof slope for slate and wood shakes. 2 12 minimum roof slope for asphalt shingles photovoltaic pv shingles and building integrated pv.

Roof crickets can be covered with metal flashing or with the same material as the rest of the roof. A general rule for designing sufficient slope in crickets is that its slope shall be twice the slope of the adjacent roof field. When the chimney is at the bottom of a roof slope or has roof sloping into it i always install a cricket. The industry rule of thumb is that the cricket panel slope should be twice that of the roof surface slope.

2 1 2 12 minimum roof slope for clay and concrete tile. Typically that will keep water from remaining on the cricket surface. Roof slope created a simple and great fix to a project were crickets were missed and ponding water became an issue for an owner. Cricket valley slope is independent of the cricket material slope.

Quicket is engineered to elevate the membrane surface as the distance increases away from the roof drains and scuppers. We were able to make new crickets to the existing roof membrane providing positive water flow to the drains. Then we were able to correct the owner s ponding water concerns. Figure 3 shows cricket valley slope calculations to acheive that 1 8 per foot standard.

Crickets are also often referred to as saddles in this context. Most commercial building codes require per foot slope of the membrane. When designing a cricket two items need to be designed slope and configuration of the cricket. Jason smithpeterson dean roofing inc.

Depending on the roof surface slope there is an accepted maximum length to width ratio.