The Modern concrete interlocking roof tile from Marley has a smooth, single lap design and slate like appearance that is enhanced by the necessary broken bond laying pattern. It’s excellent covering capacity makes the Modern concrete tile an affordable roofing solution that is a great alternative to slate. Why Concrete Interlocking Tiles? The concrete interlocking tile is a modern alternative to the standard plain tile. It is greatly admired for its smooth appearance. Additionally, concrete interlocking tiles have a lower environmental impact, are easier to install and are much more budget friendly – all the while being sturdier with the use of concrete material! Product Specification Pallet Quantity: 192 Colour: Smooth Grey Minimum Pitch: 17.5° Smooth / 25° Granular Maximum Pitch: 90° Size: 420mm x 330mm Tile Thickness: 30mm (nominal) Covering Capacity (Net, Roof)9.9 tiles/m2 at 75mm headlap10.7 tiles/m2 at 100mm headlap Weight of tiling per m² (approx, roof):50kg/m2 (0.49 kN/m2) at 75mm headlap54kg/m2 (0.53kN/m2) at 100mm headlap Tile Nails: 50mm x 3.35mm Minimum Headlap (roof): 75mm Maximum gauge (roof): 345mm Battens required (net, roof):2.9 lin.m/m2 at 75mm headlap3.1 lin.m/m2 at 100mm headlap Batten size recommended:38mm x 25mm for rafters/supports not exceeding 450mm centres (fixed to BS 5534)50mm x 25mm for rafters/supports not exceeding 600mm centres (fixed to BS 5534)