Measuring and Marking

Measurements are made on the roof, but tiles are normally marked, cut, bent and stacked on the ground.

To save time marking, cutting and bending each tile, it is best done by both installers – one to measure and the other to enter the measurements on a piece of paper. To avoid confusion, cut, bend and stack tiles in strict order. Note the following steps:

(i) The basic measurement is taken from the last corrugation on the bottom corner of the last full tile, to the hip board, along the front edge of the batten (Fig. 1).

(ii) Measure and mark on the tiles with chalk, the required measurements taken from the roof, ensuring the MATCHING corrugation of the overlapping tile to be cut, is taken as the measure starting point (Fig. 1). This forms the BENDING line (Fig. 2).

Add to the bending line measurement the height of the ridge board projection above the tile line. Mark on the tiles with chalk. This forms the cutting line (Fig. 2).

ALTERNATIVELY- Set a bevel to the angle formed by the hip board and tile batten. Place the bevel on the tile so that the measuring mark on the front of the tile lines up with the inside of the bevel. Mark along the inside of the bevel to give the BENDING line. Scribe the other side of the bevel to form the CUTTING line.
Each tile should supply two cut pieces leaving a minimum of wastage (Fig 2).

NOTE: As measurements are taken from the face edge of the batten, measurement markings on the title should be along this line also.