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Vertical sliding secondary glazing has been designed especially for secondary glazing sash windows. Secondary glazing for sash windows mirrors the primary sash window - consisting of two secondary sashes, one above the other, securely retained in their own outer frame.
Sightlines of the secondary double glazing for sash windows match a traditional sash window and each secondary sash is easily released for opening by way of the factory fitted side shoot bolts which then re-engage in pre-positioned keeps for variable ventilation.
Inner panels are easily removable to allow access for cleaning and maintenance. Suitable for Listed Building sash windows, Conservation Areas & all other properties with sash windows.
When the fire escape is required, the clear bottom sash opening width or height must be 450mm minimum together with a clear 0.33m² openable area.
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