Zenith
Zenith is the pinnacle of natural roofing slate, quarried in Galicia, Spain, from a historic reserve with a heritage dating back to 1968. It offers unmatched consistency straight from the crate – saving time on site, increasing efficiency, reducing labour costs, and enhancing the finished result.
Zenith is exclusive to Independen Slate Supplies – a slate we have selected for projects where design matters and quality is non-negotiable. Zenith exceeds the toughest standards in the roofing industry. With W1-T1-S1 rating and passing the rigorous French NF tests and Belgian ATG tests – among the strictest in Europe. Made to endure harsh climates, it suits UK conditions perfectly.
Hand-selected from exceptional rock, with only a limited quantity meeting Zenith’s strict criteria. This meticulous approach is precisely why Zenith is reserved for Independent Slate Supplies – responsibly sourced, expertly crafted, it delivers an effortless finish and enduring performance.
Sizes Available
500mm x 250mm
600mm x 300mm
Download a brochure
Advantages
- 100-Year Guarantee – The first slate to receive a 100-year guarantee through ISS.
- Exclusivity – ISS is the sole supplier of this premium, high-grade slate.
- Minimal Sorting – Naturally flat and uniform in thickness, reducing on-site labour and speeding up installation. 800 pieces per crate, displaying complete consistency.
- Visually Consistency – Harmonious colour tones and fine-grained surface texture.
- Exceptional Durability – Rated W1-T1-S1 for maximum resistance to water, thermal cycling, and sulphur dioxide resistance.
Technical Advice
When using Spanish slate, the allowance for cutting/wastage varies according to the selection being used. Click here for more information and guidance.
A Declaration of Performance (DOP) and full testing results can be provided upon request.
Click here to download a brochure.