White Marble
Agrébec’s roofing white marble is specially produced for roofing. It decreases heat island and allowes energy savings.
Our white stones for mineral roofing are a product of crushed white marble. Tests in a laboratory showed that our white aggregates for roofing MB2 type are up to twenty times more degradation (MgS04) resistant than certain calcite or dolomite stones.
With several millions of square feet sold, our roofing white gravel helped building the biggest projects of the last twenty years.
Granulometry: 5-12 mm
In compliance with AMCQ norms
Gradation in accordance with ASTM D 1863 No. 7a
Tested in accordance with ASTM C1549 and C1371
SRI calculated in accordance with ASTM E1980
CAN/CSA A23.2-9A MgS04 % measured 2.3 %
FOR BUILD-UP ROOFS AND OTHERS
| 1/4-7/16 (5-12mm) |    |
820 |
Granulometry: 20-40 mm
In compliance with AMCQ norms
Graded in accordance with ASTM D 448 No. 4
Tested in accordance with ASTM C1549 and C1371
Initial solar index reflexion of 72, and after 3 years greater than or equal to 55 according to the ASTM E 1980 method
CAN/CSA A23.2-9A MgS04 % measured 0.23 %
FOR BALLAST USE
| 3/4-1 1/2 (20-40mm) | | 824 |
Granulometry: 5-12 mm
In compliance with AMCQ norms
Gradation in accordance with ASTM D 1863 No. 7a
Tested in accordance with ASTM C1549 and C1371
SRI calculated in accordance with ASTM E1980
CAN/CSA A23.2-9A MgS04 % measured 15.6%
FOR BUILD-UP ROOFS AND OTHERS
| 1/4-7/16 (5-12mm) | | 862 |
Granulometry: 20-40 mm
In compliance with AMCQ norms
Graded in accordance with ASTM D 448 No. 4
Tested in accordance with ASTM C1549 and C1371
SRI calculated in accordance with ASTM E1980
CAN/CSA A23.2-9A MgS04 % measured 2.45%
FOR BALLAST USE
| 3/4-1 1/2 (20-40mm) | |
864 |