| 06353 Fixing accessories
Hooks, bolts, nuts & screws shall be manufactured from aluminum alloys. The products shall comply with the requirements of BS 2465 for material, workmanship threads and hooks.
Washer shall be diamond or flat pattern produced from rubber or bitumen coated fiber homogeneous and free from porosity and grit.
0636 Clay Roof Tiles and Fittings
Clay roof tiles and fittings shall comply with the requirements of BS 402.
Tiles shall be manufactured from wet weathered and prepared clay.
These shall be uniformly burnt through out, free from fire cracks, true in shape, dense and tough. Clay tiles shall show clean fracture when broken.
Clay tiles shall not be less than 10mm in thickness. The sizes of tiles shall be as indicated in drawings.
Tile fittings shall be manufactured from the same clay as the material for the tile.
Clay tiles shall be fixed to timber using roof nails as described under corrugated steel sheet fixing accessories. The holes in clay tiles and fittings shall be pre pierced.
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