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Technical - Bold Roll

  Bold Roll

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Technical Data

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Minimum roof pitch
22.5°
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
9.7 tiles per m²
Cover width
300 mm
Profile depth
68 mm
Hanging length
394 mm
Weight as laid
47.5 kg per m²
Weight per 1000
4.9 tonnes
Weight per tile
4.9 kg
Weight per pallet (including pallet/packaging)
1.0 tonnes
Quantity per pallet
210
Quantity per row/band
35
Quantity per mini pack
N/A
Quantity per layer
105
Mini packs per row
N/A
Battens per m²
2.91 m
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
80 x 3.75 mm aluminium ring shank clout head
Nail size/type for tile clips
55 x 3.35 mm aluminium ring shank clout head
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Note: Unless otherwise stated, data is based on tiles laid at minimum headlap.
 
For projects where the rafters are below the minimum recommended roof pitch, please contact Technical Services for advice.
 

Tile Fixing

Sandtoft roof tiles 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.