Skip Navigation
Find a Stockist

Technical - Calderdale Slate

  Calderdale Slate

*

Technical Data

*
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
32 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 ring shank clout head
Nail size/type for tile clips
50 x 3.35 mm aluminium ring shank 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 Services for further details.
 
*Concealed 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 Services on 0844 9395 999.