Roofing
CUPA 50
CUPA 50 is a non-carbonated slate formed by tectonic compression. Deep gray slate with thin laminations and very uniform smooth surface.
Split to an average thickness of 3/16” to 3/8”.
Characteristics
Color
Gray
Surface
Smooth
Sizes
8”x6” to 24”x12″
Thicknesses
3/16” to 3/8”
Warranty
Eligible for 75-year
Technical Specifications
Water Absorption
< 0,11% Code : W1 (< 0,4%)
Carbonate non-carbonated
≤ 0,4% Fullfil (< 1,5%)
Mor characteristic
Longitudinal 58.1 MPA
Transverse 60.5 MPA
Transverse 60.5 MPA
SO2 exposure test
S1
Thermal cycle test
T1
Freeze thaw test
Fullfil < 0,4%
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)
British Standard
BS 680 Part 2
CE marking
EN 12326
French Standard
02/09 – Nº 17704
ASTM Test
| Value | ASTM Test Method | ASTM Grade | |
|---|---|---|---|
| Modulus of Rupture | 606 lbs. at 0.237 in | C-120-19 | S1 |
| Absorption | 0.073% | C-121-20 | S1 |
| Weather Resistance | 0.0007 in. | C-217-20 | S1 |
Eligible for American Slate’s limited 75-year warranty.
Projects Gallery
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