Technical data
| Size of slate | 600mm x 300mm |
|
Minimum pitch**: Moderate exposure |
22.5° (100mm lap) 20° (110mm lap) |
| Minimum pitch**: Severe exposure | 25° (100mm lap) 22.5° (110mm lap) |
| Maximum pitch | 90° |
| Typical laps | 100, 110mm |
| Slate hooks | Hook fixed 100 -150mm |
| Maximum gauge | 245 - 250mm |
| Slate thickness | 4mm |
| Covering capacity (net) |
13.4 slates/m2 at 100mm lap |
| Weight of slating (approx) |
20.4 kg/m2 (0.20 kN/m2) at 100mm lap |
| Battens required (net) |
4.00 lin.m/m2 at 100mm lap |
| Batten size recommended (fixed to BS 5534) |
50 x 25mm for rafters/supports not exceeding 600mm centres
|
| Fixings | Slate nails (30 x 2.65mm) Copper disc rivets (19mm dia. x 2mm stem) |
| Fitting Screws |
14 gauge self sealing
|
| Slate hooks*** | Length to equal to lap |
| Authority | BS EN 492 |
Cedral fibre cement slates meet the strength requirement of BS EN 492, achieving an average bending movement greater than 50 NM/M (Class B). The slates also have a minimum density of 1700 kg/m3 and a nominal thickness of 4mm.
*Made to order
**The minimum recommended pitch and lap may be influenced by special circumstances, please contact the Technical Advisory Team for further information
***When using slate hooks the perimeters /local areas (as defined in BS 5534) will require nails and rivets
Technical specifications
Benefits:
- A+ Green guide rating
- Can achieve a BES 6001 'Very Good' rating
- Environmental product declaration available
- Can be used for both roof and facade
- Fibre cement is a recyclable building material
- Low maintenance
- Low carbon footprint of 16 CO2e/m2
Related Documents
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