Sierra natural slate is an exceptional quality slate and one of the very best options available from North West Spain. It is a flat, smooth blue grey slate which is mined (as opposed to open quarried) in deep slate tunnels near to Ourense, Galicia and is a popular seller throughout the UK and Ireland. It is readily available in both 50×25 and 60×30 dimensions.
The Sierra slate is sold, not only in the UK and Ireland, but all over the world and indeed is a market leader in Germany which has some of the strictest quality criteria for natural slates anywhere in the world.
The Sierra Spanish slate is a very consistent natural slate and requires minimal grading, making it a popular choice for roofing contractors, self-builders and architects. Available in Premium 5mm or Heavy 7mm.
Sierra Slates fully comply with BS 12326-1:2014 (W1, S1, T1), and come with a full quarry backed guarantee.
Please contact us on 02877741686 or info@valleyroofing.co.uk to get more technical information or pallet quantites
| Slate Colour and Finish | Blue/Grey, Very Smooth |
| Available in Sizes | 50x25, 50x30, 60x30 |
| Available in Grades | Premium or Heavy |
| Nominal Thickness | 5mm & 7mm |
| Minimum Pitch | 22.5 deg for standard 100mm h/lap (for pitches below 22.5 deg please consult LBS Technical Dept) |
| Maximum Headlap | All LBS slates are holed for 100mm head-lap |
| Alternative Headlaps | For availability and advice please contact LBS |
| Gauge | 200mm for slate pre-holed for 100mm head-lap |
| Batten Size | Please refer to BS 5534 or SR 82:2017 |
| Nails | Copper, Aluminium or Silicon Bronze |
