Information for Architects

Diminishing Reproduction Stone Slate

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.

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Sizes

Greys Artstone Stone Slate Size

Roof Pitch Headlap Specification

  • 3” Overlap – Roof pitches between 28 degrees and above
  • 4” Overlap – Roof pitches between 28 degrees and 24 degrees
  • 5” Overlap – Roof pitch between 24 degrees and 20 degrees (Double felting and boarding recommended depending on roof exposure at minimum pitches)

Heritage Reproduction Stone Conservation Slate including SIGA Hertiage

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.

Downloads

Sizes

Greys Artstone Stone Slate Size

Reproduction 24” x 12” Welsh Slate & Westmorland Green Single Size Slate

Greys reproduction roofing slates have been designed in consultation with professional roofers and architects, to achieve an easy to lay and uniform slating format. 
Greys Artslate Roofing Slates are constructed from Glassfibre Reinforced Concrete (GRC) producing a strong and durable slate weighing only 30kgm2 . 
Their construction allows them to be cut easily without cracking or breaking and looks like slate when cut.

Downloads

Sizes

Greys Artstone Stone Slate Size

Diminishing Reproduction Welsh Slate & Diminishing Westmorland Green Slate

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.

Downloads

Sizes

Greys Artslate Random Diminishing Slate Size

General Information

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.

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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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Greys FREE Slate Samples
hbr building logo show 2018 concept 217x90 no sponsor

HARROGATE
6 - 8 November 2020
FARNBOROUGH
16 - 17 January 2021
NEC, BIRMINGHAM
March 2021