Standard Square Reveal Fix

• 33mm x 15mm twice primed softwood ground bedded in non setting mastic and fixed to structure
• Odd leg frame with applied mastic bead lips ground and is fixed to it
• Local concealed packers take up opening tolerance
• Optional caulking joint between frame and wall allows finished decoration

Guidance

• Set back minimum 12mm from wall face to avoid blowing plasterwork
• Any hinge fixings must penetrate into structure
• Enlarged timber grounds required when:
  - Dealing with very irregular openings
  - providing access for remote blind controls
• Optional back fillet available to conceal packing

Splayed Reveal Fix

• Shaped softwood ground is machined to match the splay
• Aluminium frame fixing continues as S1

Guidance

• When attaching to shutters ensure that these are securely fixed back and sealed beforehand
• Timber section can be sized to accommodate remote blind controls
• 12mm minimum setback as S1

Face fix

• Softwood frame with minimum 38mm x 32mm section bedded in non setting mastic and fixed back to structure
• Optional ovolo moulding
• Aluminium frame fixing continues as S1

Guidance

• Suitable detail where:
  - no reveal exists
  - where clearance is needed for inward opening windows
• Remote blind controls and ventilators cannot normally be accommodated

Inset Box Sash

• Timber sized to provide a minimum 75mm glass to glass cavity and fixed back to box sash
• Optional ovolo moulding available
• Aluminium frame fixing continues as S1

• Minimum 75mm cavity applies to use of matching sash window, normally Series 20
• Existing architraves will sometimes need to be resited both for practical and visual reasons

Ventilators

• Accommodated through enlarged timber section generally at head of window