Roofing
Riverstone
Medium grey colour with the slightest hint of green. Riven surface and coarse grain.
Characteristics
Color
Medium grey colour with the slightest hint of green
Surface
Riven surface and coarse grain
Solar Reflectance (SRI)
Meets SRI requirements for Title 24
Warranty
Eligible for 75-year
Technical Specifications
Weight
Approximately 720 lbs./sq.
Standard Deviation
0.00
Solar Reflective Index
16
Solar Reflectance
0.18
Note: The weights given above are based on a 2″ double headlap (DHL). For a 3″ DHL add 7-5%.
All American Slate roofing slates are pre-dilled with two nail holes.
ASTM Test
| Value | ASTM Test Method | ASTM Grade | |
|---|---|---|---|
| Modulus of Rupture | 82 MPa | C-120 | S1 |
| Water Absorption | 0.11% | C-121 | S1 |
| Weather Resistance | 0.1 mm | C-217 | S1 |
Eligible for American Slate’s limited 75-year warranty.
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