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H65 Single lap roof tiling

            TYPES OF TILING

  110 CLAY ROOF TILING WITH COUNTERBATTENSgenerally
        • Substrate: site sprcific rafter design.
        • Pitch: site specific.
        • Underlay: Contractor's choice.
             - Recycled content: Submit proposals.
             - Direction: Parallel to eaves.
             - Head-lap (minimum): 150 mm.
        • Counterbattens:
             - Size: site specific.
             - Fixing: site specific.
        • Battens:
             - Size: site specific.
             - Fixing: site specific.
        • Tiles: To BS EN 1304, interlocking.
             - Manufacturer: Contractor's choice.
               Product reference: Contractor's choice.
             - Colour: site specific.
             - Size: site specific.
             - Head-lap : site specific .
             - Fixing:
               Fixing of local areas: site specific.
               Fixing of general areas: site specific.
        • Accessories: site specific.

RotF generic (intermediate) NBS 2014                    6118-AEW-XX-XX-NBS-A-01
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