Minimum Pitch For Cedar Shake Roof

If you desire a cedar roof for your home the ideal pitch for your roof ranges from a five pitch to a 12 pitch.

Minimum pitch for cedar shake roof.

The maximum width of flat grain shingles is 8 inches. Handsplit red cedar shakes cedar shake shingle bureau the recognized authority sin ce 1915 sumas washington 604 820 7 700 certi split the premium grade of shingles for roofs and sidewalls. The minimum roof slope on which certi label shakes are recommended is 4 12 and for certi label shingles 3 12. If 4 12 and above is normal and 2 12 is minimum what about properties with roofs in between the two such as a 3 12 pitched roof.

The minimum roof pitch for shingles and shakes is 14 degrees. The following table provides the minimum required allowable roof slope for each type of roofing material mentioned in the code. Normal shingle installation is allowed for all roofs with a pitch of 4 12 and above. Modern building codes require a minimum slope of 4 12 for shakes and 3 12 for shingles.

We discuss the following. Minimum pitch for cedar roofs. Metal roof shingles require a minimum roof pitch of 3 12 or greater. Available 100 edge grain 100 all clear in 16 or 18 or 24 lengths.

Wood shingle wood shake roof installation specifications. The minimum width for both shakes and shingles is 3 inches. Asphalt shingles require a minimum roof pitch of 2 12 or greater. Wood shingles are more susceptible to leaks than composite or asphalt shingles because they don t lock as tightly or lay as flat as traditional shingles.

At these low pitches 14 22 degrees care must be taken and a water impermeable vapour permeable underlay must be used underneath with a ventilated space between the membrane and the shingles. Low sloped roof shingle installation. The minimum roof slope allowed by code for any type of roof is in 12 applicable only to coal tar pitch roof systems. These top grade shingles are 100 heartwood 100 clear and 100 edge grain.

Normal roof slope for typical installation. Nailing schedule for wood shingles shakes. As with asphalt shingles flashing at sidewalls should be stepped flashing not continuous flashing. At these pitches there is a possibility of some water penetration.

Irc and ibc codes allow a minimum roof slope of 3 12 for shakes and shingles mansard roofs installation guidelines are found here. Page 23 cedar care maintenance overview a word about topical treatments for installed roofs topical treatment products power washing the beauty of cedar download pdf page 24 coverage and exposure tables shingle coverage table 1 shingle exposure table 2 shake coverage table 3 shake exposure table 4 download pdf. It is typical to see installations with slopes greater than these.