Minimum Roof Cricket Slope

The manufactured slope of the cricket panel.

Minimum roof cricket slope.

2 1 2 12 minimum roof slope for clay and concrete tile. And 4 12 minimum roof slope for slate and wood shakes. Cricket or saddle coverings shall be sheet metal or the same material as the roof covering. I believe that the intent of the minimum 1 4 per foot slope is to assure complete drainage.

Minimum height for roof cricket. I e if the roof surface slope is 1 4 ft the cricket panel slope should be 1 2 ft there are exceptions to this rule please call us for further information. 2 12 minimum roof slope for asphalt shingles photovoltaic pv shingles and building integrated pv. Cricket angles slopes are to be constructed to maintain positive slope drainage the entire distance of the valley.

Slope should be built into the structure on new buildings. Slope is not specified in the code. Cricket valley slope is independent of the cricket material slope. Crickets should be installed behind all curbs that obstruct drainage.

Cricket panel slope is typically double the roof surface slope. For steep slope roof systems ibc 2018 provides for a 1 12 minimum roof slope for mineral surfaced roof roll roofing. Roof slope of 1 4 per foot minimum is required on all roof systems. If the field of the roof is sloped at 1 4 per foot the valleys are a fairly small area so they wouldn t be likely to pond at a lesser 1 8 slope.

Depending on the roof surface slope there is an accepted maximum length to width ratio. 903 2 2 crickets and saddles. 1 8 per foot was the standard until the 1990s but roof deflection often resulted in ponding. The functionality of the cricket is determined by the cricket valley slope.