Quantities are calculated from the engineered roof design, not estimated. Prices exclude colour selection, which is confirmed at order stage. Geysers, solar PV and HVAC must not be fixed to the roof structure unless shown on the roof layout. Payment terms: 60% deposit, 20% before delivery, 15% on completion of truss installation, 5% on project completion. 2,5 % settlement discount for full payment with order.