Pitched roofs

7.2.7Joints and connections

Joints and connections shall be designed to ensure structural stability without undue movement or distortion.

Members should:

  • be accurately cut to fit tightly
  • not be damaged or split.

The following joints should be used at the main connections of traditional cut roof members:

Hipped roof joints

Angle ties should be used at the corners of hipped roofs to prevent the wall plates from spreading.

Where hip rafters are heavily loaded, e.g. carrying purlins, they should be jointed using dragon ties, or similar, to prevent the hip rafter spreading.