Nailing schedule for wood shingles shakes.
Minimum pitch for cedar shake roof.
Modern building codes require a minimum slope of 4 12 for shakes and 3 12 for shingles.
This wood roof article describes the slope and exposure requirements for wood shake or wood shingle roofs and provides detailed instructions on how and where to nail or fasten wood shingles shakes on roofs.
We discuss the following.
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.
Metal roof shingles require a minimum roof pitch of 3 12 or greater.
Clay and concrete tile requires a minimum roof pitch of 2 1 2 12 or greater.
Normal roof slope for typical installation.
Let us recap on the minimum roof pitch required for each type of roofing material.
These top grade shingles are 100 heartwood 100 clear and 100 edge grain.
Normal shingle installation is allowed for all roofs with a pitch of 4 12 and above.
If you desire a cedar roof for your home the ideal pitch for your roof ranges from a five pitch to a 12 pitch.
Irc and ibc codes allow a minimum roof slope of 3 12 for shakes and shingles mansard roofs installation guidelines are found here.
It is typical to see installations with slopes greater than these.
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.
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.
Available 100 edge grain 100 all clear in 16 or 18 or 24 lengths.
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.
The minimum roof slope on which certi label shakes are recommended is 4 12 and for certi label shingles 3 12.
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 following table provides the minimum required allowable roof slope for each type of roofing material mentioned in the code.
Asphalt shingles require a minimum roof pitch of 2 12 or greater.
The maximum width of flat grain shingles is 8 inches.
The minimum width for both shakes and shingles is 3 inches.
As with asphalt shingles flashing at sidewalls should be stepped flashing not continuous flashing.
The minimum roof pitch for shingles and shakes is 14 degrees.
Minimum pitch for cedar roofs.
