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The pitch of the roof has to be considered when loading the roof. Roof Pitch Less Than 30° The roofing tiles should be carried onto the roof in "lifts" of six to eight tiles. Each lift should be deposited on the tile batten, with the nose of the bottom tile hooked over the tile batten, and the back of the tile sitting on the batten below. Each tile in the lift should have the nose of the tile hooked over the one below. The lifts should be spaced approximately 900 mm apart over the entire roof, with an extra lift at the hip or gable to allow for cutting and wastage. On trusses or roofs designed with a camber to take up the load, it may be a requirement that the roof be loaded equally on both sides to spread the weight evenly. Roof Pitch Between 30° and 40° The loading of these steep pitched roofs requires special attention. Safety must be of foremost importance to prevent the tiles slipping and falling from the roof. The following method will provide for satisfactory placement of lifts before the spreading operation. The method for loading roofs below 30° is used with exception that one batten is left free and the lifts are placed 450mm apart. It is then possible to split the lift into two. The top half of the lift is hooked over the nose of the tile over the free batten and the back of the tile rested on the split lift below. Roof Pitch More Than 40° On very steep pitched roofs loading of the roof should not exceed the amount of tiles that can be laid and fixed in that days work. All loose material should be removed from the roof for safety reasons.
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