NSS HADDON (AD) 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 slight longitudinal texture. It is in most cases virtually free of any mineral inclusions, but the HADDON (AD) can on occasion have slight traces of “mica” cubit minerals, which are totally stable. The HADDON (AD) natural slate 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 HADDON(AD) slates also conform to the more stringent requirements of NF (Norm Francais) 228; this requires the quarry and slate 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, NF228 demands the very best selections so you can be confident you are receiving 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 HADDON Spanish natural roofing slates are extracted from deposits in the Ourense region in Northwest Spain.
COLOUR: Dark Grey
TEXTURE: A smooth fine grain slate with slight longitudinal textured surface and traditional dressed edge detail
QUALITY: Northern Slate supply the HADDON in a First selection, quality, and selection having been through a stringent grading process and tested to the requirements of British and European Standards
SLATE THICKNESS: 5mm
SIZES AVAILABLE:
60x30cm (24”x12”)
50×30 (20”x12”)
50×25 (20”x10”)
45×25 (18”x10”)
40×25 (16”x10”)
40×20 (16”x8”)
30×20 (12”x8”)
NSS HADDON is a strong, durable slate with excellent proven reliability and performance here in the UK and European markets nearly 50 years. It naturally splits from the block to give a relatively flat smooth fine grain surface with slight longitudinal texture. It is virtually free of any mineral inclusions. The “HADDON” (LB) natural slate 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 HADDON slates also conform to the more stringent requirements of NF (Norm Francais) 228; this requires the quarry and slate 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, NF228 demands the very best selections so you can be confident you are receiving 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 HADDON Spanish natural roofing slates are extracted from deposits in the La Bana region in Northwest Spain.
COLOUR: Dark Grey/Blue black
TEXTURE: A smooth fine grain slate with slight longitudinal textured surface and traditional dressed edge detail
QUALITY: Northern Slate supply the HADDON in a Best, First and Standard quality and selection having been through a stringent grading process and tested to the requirements of British and European Standards
SLATE THICKNESS: 5/6mm, 6/8mm and 7mm
SIZES AVAILABLE:
60x30cm (24”x12”)
50×30 (20”x12”)
50×25 (20”x10”)
40×25 (16”x10”)
40×20 (16”x8”)
30×20 (12”x8”)
Leading agents importers, distributors and stockists of Natural Slate for Roofing, Cladding and Flooring.
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