Heritage Reproduction Stone Conservation Slate

 manufactured in the ukManufactured in the UK

Preserving Britain’s Heritage

siga heritage logo

Greys Artstone are Proud manufacturers of  the SIGA 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.

SIGA 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.

SIGA Heritage Cotsway Slate

cotswayDue to reduction in quarrying of Natural Cotswold Stone over the decades both new and second-hand stone, have become increasingly costly and therefore in very short supply.
Due to this shortage, and the lack of a suitable alternative, that the SIGA Heritage Cotsway range of slates is now being manufactured by Greys Artstone Ltd. This product is an excellent alternative to real stone and has been specified on new houses and listed buildings throughout the Cotwolds and surrounding areas to replicate the rustic beauty of the original Cotswold Slate, that has given the area its distinctive charm.
The Slates are designed to blend in with original Cotswold stone slates, with their Random Diminishing appearance.
Unlike other imitation tiles, our products sit well amongst natural Cotswold stone, and will weather over the years to become indistinguishable from natural stone tiles.
The SIGA Heritage range of artificial stone roofing products are hand 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.
SIGA 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.

SIGA Heritage Rutland Slate

rutlandCollyweston stone slate is a traditional roofing material found in central England. The slates are were quarried near the village of Collyweston in Northamptonshire, near Stamford and close to the borders of Lincolnshire and Rutland.
The stone was traditionally mined and left outside for three winters until the frost revealed layers that could be broken ("clived") into flat slates, this gave then a very similar appearance to that of Cotwold Stone Slates with sizes identical to create the Random Diminishing roofscape it is renowned for. The SIGA Heritage Rutland is coloured to replicate this discticive slate. With sizes larger at the bottom of the roof scape and smaller as it is laid to the ridge, and random widths per course, its rustic appearance complements all architectural designs.
The SIGA Heritage Range is supplied with batten schedules to create an easy to lay format that is traditionally pegged as a Natural slate would be.
The slate has all the characteristics of a natural random diminishing slate with all the advantages of a modern building material.

SIGA Heritage Charnwood Slate

charnwoodSwithland 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.

Advantages

  • 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

Colours

Cotsway

Examples

Rutland

Examples

Charnwood

Examples

Sizes

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

Downloads

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.

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.

Download Greys Artstone Reproduction Stone Brochure

Download pdf Brochure


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hbr building logo show 2018 concept 217x90 no sponsor

NEC, BIRMINGHAM
28 - 31 MARCH 2019
RHC EDINBURGH 
19 – 20 OCTOBER 2019
HARROGATE CONVENTION CENTRE
1 - 3 NOVEMBER 2019