The Ontario Building Code | Exposure

9.26.9.6. Exposure

(1) The exposure of wood roof shingles shall conform to Table 9.26.9.6.

Table 9.26.9.6.
Exposure of wood Shingles

Forming Part of Sentence 9.26.9.6.(1)

Item

Column 1

Column 2

Column 3

Column 4

Column 5

Column 6

Column 7

Roof Slope

Maximum Exposure, mm

No. 1 or A Grade Length of Shingle, mm

No. 2 or B Grade Length of Shingle, mm

400

450

600

400

450

600

1.

<1 in 3

100

115

165

90

100

140

2.

≥1 in 3

125

140

190

100

115

165