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Charnwood Heritage Reproduction Stone Conservation Slate

Advantages of Greys Charnwood Heritage Reproduction Stone Conservation Slate

  • Designed to Diminish
  • 100% through-coloured for colourfastness
  • Weathers and cuts like stone
  • Saves costs on labour and trusses over second hand roofing stone
  • Full design service
  • 20% lighter than natural roofing stone
  • Hand crafted using moulds from original natural stones
  • 25 Year Warranty
  • Tested to BS EN 492:2012
  • Ventilation Slates and Ventilation Ridges available
  • Approved for Conservation Areas, National Parks and Grade 2 Listed Buildings
  • manufactured in the ukManufactured in the UK
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Greys Roofing Preserving Britain’s Heritage with Charnwood Heritage Reproduction Stone Conservation Slate

greys artstone heritage logo

Greys Artstone are Proud manufacturers of  the Greys Heritage range of artificial stone roofing products. 
The Range is crafted to give an authentic roofscape, offering detailed moulding, a choice of colours and a range of sizes. The glass fibre cement construction provides a light yet durable roofing material. An easy to lay format and a range of compatible products, including ridges and in-line ventilation systems, create an extremely versatile and cost effective alternative to natural products. Each individual slate is hand crafted using moulds taken from stone slate originals. As with natural stone, shades vary, with no two slates being identical. This, combined with the surface detail and hand colouring, ensures a truly authentic roofscape.

Greys Heritage Reproduction Stone roofing slates have been designed in consultation with professional roofers and architects, to achieve an easy to lay slating format, resulting in a coursed and diminishing stone slate roof. 
The slates are constructed from Glassfibre Reinforced Concrete (GRC) producing a strong and durable slate weighing only 65kgm2
Their construction allows them to be cut easily, without cracking or breaking, and looks like stone when cut.  The construction of our slates makes them 20% lighter than the original stone, saving on labour and timber costs. In real terms that means 16m2 of our slates per ton compared to 7m2 per ton of natural stone slates.

Greys Heritage Charnwood Slate

greys heritage charnwood insetSwithland slate roofs are an important feature of historic buildings in the East Midlands. With the closure of the two main Pit Quarries back in the 1800’s, the East Midlands have been eagerly awaiting a product that replicates the unique and rustic beauty of the original Swithland slate that has given the area it’s distinctive charm.
The reproduction slates are faithful to the original in terms of colour, texture and performance.

Designed to Diminish

Our slates are designed to give a random diminished course roofscape. A wide range of sizes ensure the roof can be laid using a random diminishing course technique providing greater weather protection and an authentic look.





Greys Artstone Stone Slate Size

SIGA Heritage Slate Technical Data

Our standards speak for themselves

  • Weight - 65kgm2
  • Construction - Glass Fibre Reinforced Cement
  • Fixings - 35mm plastic or alloy pegs to BS 5534:2003 codes of practice for slating and tiling
  • Durability - To BS 7543: 1992, 'The durability of building and building elements, products and components'
  • Colour - Coloured through with pigments to BS 1014
  • Fire - None combustible to BS 476 P.T.4
  • Approved for Conservation Areas, National Parks and Grade 2 Listed Buildings
  • Freeze / Thaw - Products comply to BS EN 492:2012
  • Strength - Better than BS EN 492:2-12
  • Permeability - To BS EN 492:2012
  • Ventilation - Net free ventilation area - Slate 10,000mm2, Ridge gives 12,500mm2, for 5mm continous air gap install every 2.5m

All the slates in our range have been successfully tested for durability, colour, strength, fire and freeze thaw. Many of our competitors use traditional concrete, their slates aren’t protected from the elements, which will expose the aggregate over time. See the example below.

Example of GRC Construction versus none GRC Construction.
Greys GRC Slate

Weathers like a natural stone or slate product

Aggregate Concrete Slate

Weathers and shows aggregate over time

  • Greys GRC Slate

    Weathers like a natural stone or slate product

  • Aggregate Concrete Slate

    Weathers and shows aggregate over time

In a recent document The International Glassfibre Reinforced Concrete Association recommend that for good quality GRC, ductile lifetimes of at least 60-80 years can be confidently expected in UK weather conditions. (Source: www.grca.org.uk).

Roof Pitch Headlap Specification

  • Job Specific - Batten Shedule Provided

Ridges and Ventilation Systems

Greys Artstone Reproduction Stone Ridge

Reproduction Stone Slate Ridge

Reproduction Stone Slate Vent Ridge

Greys Artstone Vent Slate

Reproduction Stone Slate Vent Slate


Our Green Credentials:

Greys Roofing Products are manufactured using CEM 2 Cement that contains 30% Fly Ash (Fly Ash is the correct term as appears in European and British Standards and has replaced “pfa”) Pulverised Fly Ash (pfa) is a waste product of pulverised fuel (typically coal) from fired power stations.

Our Products are Guaranteed

We’re confident our product is durable enough and manufactured to the highest of standards that we give a 25 year manufacturer guarantee.

greys 25 year guarantee icongreys bsen icongreys ce icongreys free site survey icongreys free estimates icongreys free batten layout icongreys supply and fit icon

Colour and Efflorescence COLOUR: Stone and Slate colours on this website are subject to the limitations of monitor quality and are for guidance only. EFFLORESCENCE: The phenomenon of efflorescence has been a problem to the construction industry for decades. The cause lies in the basis chemistry of all Portland cements. Efflorescence in Greys Artstone products is a temporary phenomena and will disappear over time.

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  • Contact Details
    Greys Artstone Limited
    Lees Mill
    Lees Mill Lane
    HD7 5QE
    Telephone: +44(0)1484 666400
    Fax: +44(0)1484 662709

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