Gravel for roofs

Ballast natural gravel

Produced from naturally rounded granite river pebble, our natural washed gravels for roof ballast are designed to outperform
industry requirements and standards.

–Photos for illustrative purposes only–

GRANITE RIVER STONE 20-40MM
No. BT-674 20-40MM

Granulometry: 20-40 mm

In compliance with AMCQ norms

Graded in accordance with ASTM D 448 No. 4

CAN/CSA A23.2-9A MgS04% measured 0.9%

Gravel 40-20mm Group 2.

FOR BALLAST USE

1 metric ton covers +/- 120p² to 2 inches thick

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