NSS “CHATSWORTH” is a strong, durable slate with excellent proven reliability and performance here in the UK and European markets for nearly 50 years. It naturally splits from the block to give a relatively flat smooth fine grain surface with a slight longitudinal texture. It has a clean surface conforms to the requirements of BS EN 12326 with a W1 T1 and S1 specification. (Copy BS EN 12326 Declaration of Performance certificate available upon request) NSS “CHATSWORTH” slates also conform to the stringent requirements of NF (Norm Francais) 228; this requires the quarry and slates to meet even greater exacting quality criteria and production testing procedures culminating with barcode traceability to be approved for use in France.
The French market is known to receive over 80% of global slate production NF 228 demands the very best selections so you can be confident you are receiving a consistent quality slate with every consignment. (Copy NF certification available upon request)
As a benchmark for quality and selection you should ensure the slates meet the requirements detailed within the “Northern Slate quick quality check list” to ensure you are receiving the very best slate for your proposed natural slate roof.
ORIGIN: The “CHATSWORTH” Spanish natural roofing slates are extracted from deposits in the Galicia region of Northwest Spain.
COLOUR: Blue Grey
TEXTURE: A smooth fine grain surface with slight longitudinal textured and traditional dressed edge detail
QUALITY: Northern Slate supply the CHATSWORTH Blue Grey in an Ultra, a Best and First selection having been through a stringent grading process and are tested to the requirements of British and European Standards
SLATE THICKNESS: 5/6mm, 6/7mm and 8/9mm
SIZES AVAILABLE: 60x30cm (24”x12”)
50×30 (20”x10”)
50×25 (20”x10”)
40×25 (16”x10”)
Leading agents importers, distributors and stockists of Natural Slate for Roofing, Cladding and Flooring.
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