Alterna Fibre Cement Slates

Smooth surface and square cut edge

  • Modern Aesthetics
  • Full Roof System
  • Suitable for commercial, public and residentials projects
  • Can be used for both roof and cladding
  • Fibre cement  recyclable
  • Economical and functional


A smooth surface and square cut edges give a low profile slate at an economical price, particularly suitable for complex roof geometries down to 17,5 degrees.

With its low wastage and ease of installation, it's easy to see why it is the product of choice for all types of new build and refurbishment projects. Used on a variety of applications, Alterna provide the flexibility to create inspirational roofs and cladded facades.

Size of Tile 600mm x 300mm 

All information contained here-in is subject to final approval from an architect or engineer.

Minimum Pitch

With 100mm lap: 22,5° 

The information given here is relevant for normal wind loading conditions.
Maximum Pitch

17,5 degrees

Minimum Headlap

600mm x 300mm

100mm, 110mm

Maximum Gauge

600mm x 300mm

245 - 250mm

Covering Capacity

600mm x 300mm

100mm lap 13,4

110mm lap 13,6

Weight of Tiling

600mm x 300mm

100mm lap 20,4kg (approx weight kg/m2)

110mm lap 20,9kg (approx weight kg/m2)

Battens Required

600mm x 300mm

100mm lap 4.00 (Net linear metre/m2)

110mm lap 4.08 (Net linear metre/m2)