Roofing
CUPA 7
Previously Olympus Peak
CUPA 7 is a non-carbonated natural slate formed by tectonic compression.
Black slate with thin laminations and a smooth surface.
Characteristics
Color
Black
Surface
Smooth
Sizes
16”x8 to 16”x10”
Thicknesses
3/16” to 3/8”
Warranty
Eligible for 75-year
Technical Specifications
Water Absorption
0,28% Code: W1 (< 0,4%)
Carbonate non-carbonated
≤ 0,48% Fullfil (< 1,5%)
Mor characteristic
Longitudinal 61,2 MPA
SO2 exposure test
S1
Thermal cycle test
T1
Freeze thaw test
Fullfil < 0,6%
All American Slate roofing slates are pre-dilled with two nail holes.
International Certifications
ASTM
C-121-20 (S1), C-120-19 (S1), C-217-20 (S1)
French Standard
NF 228-02/01/01 – 5277
British Standard
BS 680 Part 2
CE marking
EN 12326
Belgian Standard
ATG/H876
ASTM Test
| Value | ASTM Test Method | ASTM Grade | |
|---|---|---|---|
| Modulus of Rupture | 742 lbs, Ave. thickness 0.304 in | C-120-19 | S1 |
| Absorption | 0.181% | C-121-20 | S1 |
| Weather Resistance | 0.0006 in. | C-217-20 | S1 |
Eligible for American Slate’s limited 75-year warranty.
Projects Gallery
Want a slate sample?
We welcome your inquiries and would be delighted to have the opportunity to discuss why American Slate is the right choice for your next project — and for our times.