Calculating Quantities

Method: 1. Measure length of eaves. From table determine number of tiles needed along length of eaves (Ne). 
2. Measure length of Rafter. From table determine number of tiles needed along length of rafter (Nr). 

NOTE:
Roof Pitch             Battern Centres 17.5                       320mm
26.0                       340mm 

3. Calculate number of tiles required by multiplying the tiles required along the eaves by the number required along the rafter.

NOTE: This number only covers the tiles required for one side of the roof. For the tiles required for the total roof this number must be doubled.

4. Ridge Tiles: See the table for number of ridge tiles.

NOTE:For more complicated roofs which include hips and valleys, contact us for assistance with the calculations
Quotations are given FREE of Charge.