Use broken-bond practice only!
Marley Radiant Barrier is compulsory for pitches below 26 degrees in all cases and Radiant Barrier or Undertile Membrane is compulsory for any pitch above 26 degrees and in all cases
Ensure that all battening is in an absolute level plane.
On exposed sites and at rafter lengths exceeding 8m the tile headlap must be increased to 120mm. However, increased headlap is not as effective as a steeper pitch.
Due to natural variations in the raw materials and the occasional occurrence of efflorescence on concrete products, absolute colour uniformity on the roof cannot be guaranteed with Standard Through colour tiles.
All tiling and fixing to comply with SANS 10062 and 10400L code of practice.