Installation Guide

LENGTH AND
THICKNESS
Approximate coverage of one square (4 bundles) of shingles
based on following weather exposures
90mm 100mm 115mm 125mm 140mm 150mm 165mm 180mm 190mm
405mm x 5/50mm 6.7 7.4 8.5 9.3 – – – – –
455mm x 5/55mm – 6.7 7.6 8.3 9.3* – – – –
610mm x 4/50mm – – – – 6.9 7.3 8.1 8.8 9.3*
NOTE. *Maximum exposure recommended to roofs.
Shingle Coverage Table 1
405mm 455mm 610mm 405mm 455mm 610mm 405mm 455mm 610mm
14˚ to 19˚ 95 108 146 90 100 140 75 90 125
19˚ and steeper 125 140 190 100 115 165 90 100 140
Shingle Exposure Table 2
PITCH
Maximum exposure recommended for roofs
Length (mm)
No 1 Blue Label No 2 Red Label No 3 Black Label
(a) 5 bundles will cover 9.2 sqm roof area when used as starter-finish course at 255mm weather exposure;
7 bundles will cover 9.2 sqm roof area at 190mm weather exposure; see footnote (d).
(b) Maximum recommended weather exposure for 3-ply roof construction
(c) Maximum recommended weather exposure for 2-ply root construction
(d) All coverage based on 13mm spacing between shakes
(e) Maximum recommended weather exposure
Shake Coverage Table 3
Approximate coverage (in sq. m) of one
square, when shakes are applied with
13 mm spacing, at following weather
exposures, in inches (d):
125mm 140mm 190mm 215mm 255mm
455mm x 13mm Handsplit-and-Resawn Mediums (a) – 5.1 6.9 – –
455mm x 19mm Handsplit-and-Resawn Heavies (a) – 5.1 6.9 – –
455mm x 16mm Tapersawn – 5.1 6.9 – –
610mm x 9mm Handsplit 4.6 – 6.9 – –
610mm x 13mm Handsplit and Resawn Mediums – – 6.9 7.8 9.3
610mm x 19mm Handsplit and-Resawn Heavies – – 6.9 7.8 9.3
610mm x 16mm Tapersawn – – 6.9 7.8 9.3
610mm x 13mm Tapersplit – – 6.9 7.8 9.3
455mm x 9mm Straight-Split – 6.0 8.3 7.8 –
610mm x 9mm Straight-Split – – 6.9 7.8 9.3
380mm Starter-Finish course
Use supplementary with shakes applied
not over 255mm weather exposure.
SHAKE TYPE, LENGTH
AND THICKNESS
455mm 610mm
19˚ and steeper 190mm 255mm (a)
Shake Exposure Table 4
PITCH
Maximum exposure recommended for roofs
Length (mm)
(a) 610 x 9 mm handsplit shakes limited to 125mm maximum weather exposure.
16
Coverage and Exposure Tables
Formula for calculating
at reduced exposures:
square footage
÷ reduced coverage
= total material required
Example:
You are estimating
a roof that measures
296 sq. metres.
You have decided to
put 405 mm shingles
(No. 1 Blue Label or
No. 2 Red Label) at
100mm exposure.
The above coverage
table (Table 1) tells you
that a 4-bundle square
at 100mm exposure
covers 7.4 square m.
296 ÷ 7.4 = 40 squares
of material
1 Square = 9.2 square metres or 100 square feet