A range of good quality natural roofing slate, ideal for the refurbishment and volume housing developer markets.

Commercial slates are recommended for experienced slaters, as thickness and quality can be more variable than the Excellence range, so careful sorting and grading is recommended for the best aesthetics.

SIGA 54X

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

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SIGA 65

A first mixed selection textured blue grey slate from a very popular quarry, suitable for all project types except in Scotland.

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SIGA 62M

A first selection slate from the La Bana Region with a fine vertical line. Smooth, blue grey and slender - suitable for projects in the South and East of England.

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SIGA 37

A very popular slate for use across the UK, with a pleasing blue grey textured finish similar to SIGA 39.

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SIGA 65V

A consistent, economical and smooth natural slate. Ideal for new build housing projects covered by NHBC warranties in the South, West and East of England.

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SIGA 35

A heavy textured 8mm blue grey slate very popular with house-builders in Scotland.

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SIGA 13S

A dark blue grey smooth slate from Spain similar to SIGA 112s, with a fine vertical grain. Often used on self build projects.

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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