The finest natural roofing slates from the most reputable quarries, selected to provide a long lasting, beautiful roof with minimal grading and sorting.

This range provides readily available alternatives to long discontinued slates from Wales and Scotland, providing a close match for texture and colour without the slightest compromise on quality.

Excellence natural slates are ideal for heritage conversion and refurbishment projects and high quality new build and self build projects, with some slates being National Parks approved.

Gallegas 39 (Formerly SIGA 39)

A very popular slate for use on all projects across the UK, with a pleasing blue grey textured finish.

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SIGA 120

SIGA 120 is a unique indigenous alternative to traditional Scottish slate.

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A clean, flat and regular slate with an attractive dark appearance, commonly used in the South of England.

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An attractive blue black slate suitable for use in Scotland on high profile projects. Complies with the Belgian ATG standard.

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SIGA 32s

A textured blue grey slate with National Parks Approval. A good alternative to the popular SIGA 32.

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SIGA 150

SIGA 150 has been carefully selected from quarries in Vermont USA to provide additional green slate for the UK market.

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SIGA 140

An alternative to indigenous purples slate, sourced from the USA.

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SIGA 112s

SIGA 112s is a smooth, dark blue grey slate sourced from our quarries in northern Spain.

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A textured blue grey slate with National Parks Approval. 7mm thickness commonly used in the North of England, 5mm in the South.

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SIGA 53S is a strong, hard slate with excellent durability, an attractive dark/grey appearance and a rustic, rugged texture.

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Registered Office: SIG Trading Limited, Adsetts House, 16 Europa View, Sheffield Business Park, Sheffield, S9 1XH. Registered in England No. 01451007 VAT No. GB 487 01733