Standard Square Reveal Fix
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- 33mm x 15mm twice primed softwood ground bedded in acrylic 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
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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
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Splayed Reveal Fix
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- Shaped softwood ground is machined to match the splay
- Aluminium frame fixing continues as S1
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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
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Face fix
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- Softwood frame with minimum 38mm x 32mm section bedded in acrylic mastic and fixed back to structure
- Optional ovolo moulding
- Aluminium frame fixing continues as S1
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Guidance
- Suitable detail where:
- no reveal exists
- where clearance is needed for inward opening windows
- Remote blind controls and ventilators cannot normally be accommodated
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Inset Box Sash
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- 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
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Guidance
- 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
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Ventilators
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- Accommodated through enlarged timber section generally at head of window
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Guidance