Lower vertical sliding sash
This system is used when regular ventilation is required.
It can be mounted within the 'staff beads' of a sash window, allowing the lower pane to be opened, whilst the upper pane remains fixed, enabling the retention of working internal shutters.
All secondary glazing site lines will be matched up with your existing glazing bars to ensure that your windows retain their period features without being compromised – a priority when preserving the character of your historic property whilst improving the thermal efficiency.
Our slim, lightweight framework can be powder-coated to any RAL or BS number to complement your existing decor and provide you with an aesthetically-pleasing result, virtually invisible inside and out.
This style of secondary glazing can be produced to accommodate the idiosyncrasies of your primary windows, and can be engineered to facilitate arch/bow tops and even curved-in-plan.
Our Lower Vertical Sliding Sash unit is held in place using our magnetic system and is easily removable for cleaning and maintenance purposes.
Click here to download the product specification sheet.
Our secondary glazed units are available in an extensive range of RAL or BS colours, can be filmed with a variety of different films from UV to Privacy and our replacement ironmongery also comes in a range of finishes. We also offer two different types of glass. For more information please see our Finishing Touches section.more info