Garsdale slates feature a detailed textured surface and crisp square edge. Versatile and easy to install making them a favourite with both architects and contractors alike.

Garsdales have been chosen on numerous projects to satisfy both facade and roofing requirements, such as Broxden Dental Centre in Perth and Methven social housing scheme in Scotland.

If you would like to find out more about our truly complete roof system, underwritten by a 15 year warranty, please click here.

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Size of Tile

600mm x 300mm

Minimum Pitch 100mm lap
Moderate exposure 22.5°
Severe exposure 25°

110mm lap
Moderate exposure 20°
Severe exposure 22.5°
Maximum Pitch 90°
Maximum Gauge


Covering Capacity 13.4 slates/m² at 100mm
13.6 slates/m² at 110mm
Weight of Tiling 20.4 (0.20 kN/m²) at 100mm lap
20.9 (0.20 kN/m²) at 110mm lap
Battens Required 4.00 (net lin.m/m²) at 100mm lap
4.08 (net lin.m/m²) at 110mm lap
Batten Size Recommended 38mm x 25mm for rafters/supports not exceeding 450mm centres
50mm x 25mm for rafters/supports not exceeding 600mm centres
Tile Nails

30mm x 2.65mm

Copper disc rivets


Authority BS EN 492

Please click here for further information on batch codes and special considerations

Need a complete roof system? We’ve got you covered. Welcome to the most comprehensive roof system on the market. At Marley Eternit, we’ve pulled together all the elements you need to specify high-performance roofs for any type of scheme into one advanced solution. So now you can source everything – from the battens and underlay, through to the roof covering, components and fixings.

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Country of Production


Environmental Management


Quality Management


Health and Safety Management


LCA study

Can achieve an A+ rating in the BRE Green Guide to Specification


Manufactured under high pressure and air cured

Raw materials

Cement, silica, fibres, pigments and fillers


> 60 years


Fibre cement is a 100% recyclable building material

Embodied Carbon Rates


Measurement metric No per sq m  Headlap / gauge M₂ conversion
KgCO₂e 13.4/13.6 100mm/110mm 13
Here at Marley Eternit, we are always on hand to offer practical and experienced support. Select an option below or call us on 01283 722588.