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  BU610 Preventing moisture in timber-framed skillion roofs

Many low-slope roofs in New Zealand are skillion roofs. The roof cladding and ceiling lining are parallel and usually directly attached to framing.  BU610 image.PNG

Careful design, specification and construction is needed to avoid moisture-related problems in skillion roofs.

This bulletin explains potential problems and how to reduce he risk of them occurring. 

The bulletin covers: 

  • External moisture
  • Thermal movement
  • Internal moisture
  • Trapper moisture
  • Condensation risks
  • Design options