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Restraint (Timber Gables) Restraint Straps (Domestic Roofs)
Gable Panel (without gable ladder)
Cullen PFS restraint straps fixed to solid timber noggins between trusses at maximum 2000mm centres with 3.4x35mm square twist nails, 8no. to noggins and 4no. to gable panel (2no. top face & 2no. cavity face)
Cullen RST-3 restraint straps at maximum 1200mm centres fixed to additional longitudinal bracing with 8no. 4x25mm steel screws fixed to gable panel stud with 3no. 3.4x35mm square twist nails
Truss profile
Gable Panel (with or without gable ladder)
Bottom rail of gable panel
Continuous wallplate 38mm min-75mm maximum depth
1200mm max
Vertical restraint strap to be face fixed to vertical stud with 4no. 3.4x35mm square twist nails or Cullen VRS-900-100 fixed to top of bottom rail with 4no. 3.4x35mm square twist nails
Mortar bed
Cullen Gable Restraint Bracket (GRB) at maximum 1200mm centres
1200mm max
1200mm max
1200mm max
1800mm maximum Vertical restraint strap plugged and screwed to blockwork at maximum 1.8m centres, either: Cullen VRS-900-100 installed to top of gable panel bottom rail or Cullen PFS-1200-F nailed to face of gable panel vertical studs. or
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