CUPA 12
Dark grey Spanish roofing slate with a smooth matt face, from CUPA’s La Campa quarry in Lugo — the most widely specified natural slate in Britain and the default where a slate roof is drawn. At 5 mm and 36.9 kg/m² it is the lighter of the two CUPA slates here. Its declaration covers extraction and manufacture on one site, and gives a 75-year study period, which is conservative for a material that routinely outlives the building’s other layers.
Carbon and evidence
Product Evidence
Evidence currently held for the CUPA PIZARRAS product record.
Recorded Carbon Result
A1–A3 GWP-total per m² of finished roof at 36.9 kg/m², over the declaration’s 75-year study period. Delivery is declared separately at 1.98 kgCO2e/m² (608 km by road and 1,198 km by sea) — for a material this heavy the quarry’s location matters as much as its process.
Indicator: GWP-total
CUPA 12 natural slate (BREG EN EPD 000232 (Issue 02))A1–A3 covers raw-material supply, transport to manufacture and manufacturing. It is product-stage information, not a whole-life result.
Environmental Product Declaration
EPD recorded- Coverage
- Specific product
- Declared unit
- 1 m² 36.9 kg/m², 75-year study period
- Programme
- BRE Global (BRE Global Scheme Document SD207)
- Registration
- BREG EN EPD 000232 (Issue 02)
- Standard
- EN 15804:2012+A2:2019, ISO 14025
- Valid until
- 2031-02-19
- Verification
- Third-party verified
Quarried at La Campa Quarry, Folgoso do Courel, Lugo, Spain. Formats 500×250, 400×250, 600×300, 400×200 and 500×300 mm, all 5 mm thick.
Carbon profile
kgCO2e per 1 m² of roof · each bar starts at zero · local scale
A1-A3 product
6.2
A4-A5 site*
2.45
B use
0
C end of life
0.165
D reuse / recycling
-0.793
Reported GWP Modules
Displayed as stored; modules are not added together here.
A1–A3
6.2 kgCO₂e
per 1 m² of roof
A4*
1.98 kgCO₂e
per 1 m² of roof
A5*
0.472 kgCO₂e
per 1 m² of roof
B1
0 kgCO₂e
per 1 m² of roof
C1
0 kgCO₂e
per 1 m² of roof
C2
0.146 kgCO₂e
per 1 m² of roof
C3
0.0103 kgCO₂e
per 1 m² of roof
C4
0.00884 kgCO₂e
per 1 m² of roof
D
-0.793 kgCO₂e
per 1 m² of roof
Upfront Carbon (A1–A5)*
8.65 kgCO₂e per 1 m² of roof
A1–A3 6.2 + A4 1.98 + A5 0.472 · GWP-total, as declared
Evidence Sources
Comparison Status
This result should be displayed for information only and not ranked against another product.
- • The EPD is not linked to an evidence source.
Design & Specification Notes
Qualitative notes for early design discussion. Not product-specific EPD evidence, and not a basis for numerical comparison.
Dark grey Spanish roofing slate with a smooth matt face, from CUPA’s La Campa quarry in Lugo — the most widely specified natural slate in Britain and the default where a slate roof is drawn.
Typical Uses
- •Roof coverings
- •Waterproofing layer
- •Weather protection
Key Performance
High durability in wet exposure and wind uplift.
Typical Service-Life Estimate
100 yearsGeneric estimate for early design discussion; confirm with the manufacturer.
Specification Actions
- •Confirm the current EPD covers the selected product, finish and manufacturing route.
- •Calculate transport distances for primary materials.
- •Document material reuse or reclaimed content percentages.
Indicative Health & Indoor Air
Specification
- Range
- CUPA 12
- Finish
- Natural roofing slate, 5 mm
- Thickness
- 5 mm
- Country of manufacture
- Spain