Branz Skillion Roof

In fact research has shown that most skillion roofs in new zealand have no problems even those that are not deliberately ventilated.

Branz skillion roof.

In skillion roofs the roof cladding and ceiling run parallel typically within 300 mm of each other. Pink batts skillion roof insulation has been appraised as a thermal insulation material for timber framed skillion roofs of domestic and commercial buildings. In skillion roofs the roof cladding and ceiling run parallel typically within 300 mm of each other. The small roof space can accelerate prob lems with moisture.

Skillion roof airflows modelled airflow simulations were carried out for a monopitch skillion roof with profiled metal roofing with and without eaves. The dimensions of the building are not critical and chosen only to show the effect. Skillion roofs are commonly thought to pose more of a problem because their tight construction and narrow framing cavities provide little oppor tunity for air entiy and movement. Technical literature pink batts skillion roof insulation product data sheet nov16 1082revb november 2016.

The building in the model has a 12 m long roof with 300 mm deep eaves. Branz research provides guidance around the ventilation of these roofs. Pitched roofs constructed with timber rafters are described in nzs 3604 2011 timber framed buildings as either couple close or skillion roofs. The roof space is generally inaccessible with little natural ventilation and the small roof space can accelerate problems with moisture.