18mmx600mm structural ply or OSB gussets with 8no. 3.35x 65mm nails each side spaced evenly. Min. 4mm gap at top flange

Finnjoist or Kerto Blocking

Restraint strap (RS), where required

Bevelled plate nailed to ridge beam or strapped to wall using restraint straps

Structural ridge beam or wall

Framing anchors (FA), where required

Ventilation holes may be drilled in blocking where required