Minimum roof pitch*	17.5° at 100 mm headlap 22.5° at 75 mm headlap
Headlap (minimum)	75 mm
Headlap (maximum)	120 mm
Batten spacing at maximum gauge	345 mm
Batten spacing at minimum gauge	300 mm
Size of tile	420 x 334 mm
Covering capacity at maximum gauge	10.6 tiles per m² at 100 mm headlap 9.9 tiles per m² at 75 mm headlap
Cover width	294 mm
Profile depth	28 mm
Hanging length	399 mm
Weight as laid	56.2 kg per m² at 100 mm headlap 52.5 kg per m² at 75 mm headlap
Weight per 1000	5.3 tonnes
Weight per tile	5.3 kg
Weight per pallet (including pallet/packaging)	1.1 tonnes
Quantity per pallet	204
Quantity per row/band	34
Quantity per mini pack	N/A
Quantity per layer	102
Mini packs per row	N/A
Battens per m²	3.1 m at 100 mm headlap 2.9 m at 75 mm headlap
Batten size - up to 450 mm rafter centres	38 x 25 mm
Batten size - up to 600 mm rafter centres	50 x 25 mm
Nail size/type for tiles	50 x 3.35 mm aluminium clout head
Nail size/type for tile clips	50 x 3.35 mm aluminium clout head

Note: Unless otherwise stated, data is based on tiles laid at minimum headlap.

* Rafter length restrictions apply at minimum roof pitch. Please contact Technical Support for further details.

Concealed Calderdale and Dual Calderdale slate ventilators must not be used on roof pitches below 22.5°

Tile Fixing

Sandtoft roof slates must be laid and fixed to comply with BS 5534: the British Standard Code of practice for slating and tiling, and BS 8000: Part 6: the British Standard Code of practice for workmanship on building sites.

To ensure compliance with these Standards we strongly recommend that either the recommendations given in the Sandtoft Zonal Method User’s Guide and Zonal tables must be followed where available or a calculated fixing specification must be obtained using Sandtoft’s Fixing SPEC service.

For further information go to Fixing SPEC or contact Sandtoft Technical Support on 0870 145 2021

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