Section 3.1

Roof Pitch	Construction Requirements.
12.5°	Minimum pitch.
Pitch >=12.5° - 15°	Sarking required.
Pitch >15° - <18°	Recommend sarking.
Pitch >=18° - <27	Standard fixing.
Pitch >=27° - <36°	Standard fixing. Perimeter scaffolding or guard rail to besupplied by builder.
Pitch >=36°	50 x 38 mm minimum batten required. Mechanical fixing every tile. Perimeter scaffolding or guard rail to be supplied by builder.

NOTE:

Regardless of pitch, all roofs in areas of design velocity >47 metres per second should be sarked.