Roof Cricket Angles

Since roof drains are rarely placed in the lowest point of a structural sloping roof deck crickets are usually needed.

Roof cricket angles. A pitch over 9 12 is considered a steep slope roof between 2 12 and 4 12 is considered a low slope roof and less than 2 12 is considered a flat roof. Crickets are also often referred to as saddles in this context. That roof was originally built with flush rakes so we extended the rake overhangs on both sides to 24. Cut 3 4 inch plywood to fit that triangle space for both sides.

The porch joined the house at right angles to a shed roof section. The functionality of the cricket is determined by the cricket valley slope. Columns beams and supporting walls usually occupy the low points forcing drain placements to be moved further up hill. Cricket angle the angle x between corresponding lines ab cricket length and ac cricket valley design guidelines.

The roof cricket is normally the same pitch as the rest of the roof but not always. Measure the triangle along the sides of the cricket beam the length up the roof the width against the chimney and the angle between the outside of that line and the top of the cricket beam. As this angle increases the cricket valley slope increases resulting with more effective drainage. Most roof s have a pitch in the 4 12 to 9 12 range.

We designed the porch with wide overhangs for shade from the hot north carolina summer sun. Roof pitch refers to the measurement of the slope of a roof and you express this as a ratio. Common roof pitches and equivalent grade degree and radian angles. Of the cricket width length angle and the roof surface slope.

Cut a 2 inch by 4 inch board that s 2 feet long then cut a slope into the board to match the slope of the cricket. We began by tearing off the shingles and removing a skylight from the shed roof. For a 4 in 12 slope measure 4 inches down from one end of the 2 inch by 4 inch. Although there s isn t any standard pitch of a roof used on all kinds of sloped roofs you can determine the range of pitches by using a roof angle calculator and by considering factors like the local climate and roofing materials.

Depending on the roof surface slope there is an accepted maximum length to width ratio. The angle between line 1 2 cricket length and 1 3 cricket valley. Cricket panel slope is typically double the roof surface slope. Without crickets the area between the drain and the wall remains low and collects water.

To see how pitch impacts the look of a garage and changes cost click the design center button on our pole barn kits page.