Tile Installation

Tile Laying

Tiles can be interlocked either right over left or left over right, but should be laid with the laps facing away from prevailing winds or from discharging rain water pipes or valleys.

Where possible the tiles should also be laid with the laps facing away from the normal line of sight.

Tiles are laid by lifting both tiles in the course above and sliding the next course under the nose of the tiles already in place (Fig. 1).

Tile Installation Procedure – Hip Roof

General instructions for tile laying as described above. On the second to top course, lay the top corner of the first tile 150mm from the hip board. Continue to lay tiles towards the other hip until the last full tile will fit.

Secure these tiles by tacking through the back flange. Lay subsequent courses two at a time, both starting about the same distance from the hip board (Fig 2).

Care should be taken to line up the corrugations. To reduce waste, use part tiles to complete rows within approximately 150mm of hip board. This allows each end of a full tile to be cut and bent to fill the gaps.

Nailing

The correct position for nailing tiles to battens is shown in (Fig. 3). Tiles are secured by nailing through the front down-turned flange into the side of the batten.



Nails should be approximately 60mm to the side of the centre of the pan of the tile (Fig. 4): and close to the bottom of the downturned flange. This ensures good holding of the tile and ample penetration of the batten at the same time restricting nail penetration to a maximum of three thickness.
Note: In areas prone to cyclones and hurricanes, installation must meet local standards and bylaws. Low wind zones nailing should be at 8 points per tile for the top two courses and bottom two courses of tiles and also within one tile length from hips, valley and barges.

MetroShake – 4 nails per tile positioned out of water course.

Nailing Technique

The person nailing should stand on the tile being installed facing the fascia and nailing as shown. (Fig.5)

Eaves / Fascia

At eaves, tiles are fixed through the top surface of the tiles into the batten immediately behind the fascia. The nail should be close to the high point of the tile profile (Fig.6). To ensure weather-proofing, the nail must be sealed up. MetroShake nail positions must be out of the water course.