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Venta 55 is from a newly opened quarry in Northern Spain and is exclusive to JRC in the UK market. The producers of this slate have many years of experience and are now putting all their efforts into this new, high quality slate.
Data Sheet
| Water absorption | W1 |
| Non carbonate carbon content | In accordance 0.5% |
| Mechanical resistance characteristics (MoR) | Longitudinal 67.5N/mm2 Transversal 62.4N/mm2 |
| Calcium carbonate content | Complies 0.4% |
| Dimensional tolerances | Complies |
| Thermal cycle | T1 |
| Exposure SO2 | S1 |
| External fire performance | Deemed to satisfy A1 |
| Reaction to fire | Deemed to satisfy A1 |
| Release of dangerous substances | None |
| Use as roofing or external cladding | Yes |
