Welsh Slate
Welsh slate is an extremely durable metamorphic rock. It is unaffected by extremes of temperature and is highly resistant to acids, alkalis and other chemicals. It retains its natural colour, even in UV light and is impermeable to water.
Geographic availability
UK
Origin / Location of manufacturing / Processing plant
Penrhyn Quarry, Near Bangor, Wales Cwt Y Bugail Quarry, Blaenau Ffestiniog, Wales
Application and typical uses of the product
Roof covering for rafter pitches over 20 degrees, external and internal cladding and paving, natural walling stone and decorative aggregates.
Breakdown of Product
100% Natural Slate
Embodied energy (Processing plant emissions). How much energy is used to produce the product? kWh per annum or kgCO2
Typical embodied energy 5 MJ/m2. Typical embodied carbon 0.3 kgs/m2. Based on roofing application
Thermal conductivity (k) W/m°C or Thermal transmittance (U-value) - W/m2°C (If applicable)
k = 1.7 W/m°C
Is the resource Renewable or Finite?
finite
Does the material need to be processed further or treated by the user
No
Buildability - how complex is installation? What skill level is required?
Roofing slates should be installed by an experienced natural slate roofing contractor or equally competent person. Most cladding and paving products can be installed by persons familiar with stone walling and flooring products
Deconstruction and Re-use
Due to its durability most Welsh Slate products are re used after their initial installation
Disposal/ End of Life
Welsh Slate is chemically inert and can be crushed to be used as construction fill
Types, textures, specifications and colours currently available
Heather Blue, Dark Blue Grey, in naturally cleaved fine textured riven finish as well as a naturally “pillared”, fine rubbed or flame textured finish for cladding and paving
Supplier Name
Welsh Slate
Main Contact
Sales Team
Contact Address
Penrhyn Quarry,
Bethesda,
Bangor,
Gwynedd, LL57 4YG
Telephone Number
01248 600656
Email
enquiries@welshslate.com
Website
Is this product certified?
BS EN 12326, BS EN 1314, CE Marked
Lifespan of materials if maintained correctly (years)
100 years +