Our Vertical Sliding Secondary Glazing is ideal for heat and sound proofing for traditional wooden box sash windows, or any other windows that have horizontal bars. Panels slide open in the same way as vertical sliding sash windows and provide easy access to the existing window. When open they provide ventilation without interfering with curtains or blinds.
Our Vertical Sliding Secondary Glazing is extremely versatile, slides smoothly and is available with spring balances or spring catches to hold sliding sashes in an open position. We can also offer our unique tilt back easy clean vertical sliders.
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The sizes detailed below are for guidance only, if the sizes you require are less than the minimum or exceed our maximum recommended sizes - please ask our technical department for advice.
Economy Odd Leg System
Luxury Subframe System
| Key Dimensions And Sight-lines | |
| Outerframe Depth (mm) | 39 |
| Sash Depth (mm) | 13 |
| Glass (mm) | 4 - 6.8 |
| Max. Distance To Visible Glass (mm) | 82 |
| Size of Vertical Interlock (mm)² | 20 |
| Key Dimensions And Sight-lines | |
| Outerframe Depth (mm)¹ | 39 |
| Sash Depth (mm) | 13 |
| Glass (mm) | 4 - 6.8 |
| Max. Distance To Visible Glass (mm) | 57 |
| Size of Vertical Interlock (mm)² | 20 |
² The visible interlock is 33mm for our unbalanced vertical slider when you account for the spring catch adaptor.
Unbalanced Vertical Slider
Balanced Vertical Slider
| Recommended Sizes | |
| Min. Width (mm) | 400 |
| Max. Width (mm) | 1250 |
| Min. Height (mm) | 600 |
| Max. Height (mm) | 1850 |
| Max. Panel Weight (kg) | 18 |
| Recommended Sizes | |
| Min. Width (mm) | 400 |
| Max. Width (mm) | 1250 |
| Min. Height (mm) | 800 |
| Max. Height (mm) | 2450 |
| Max. Panel Weight (kg) | 18 |
¹ We offer three different subframes for our Luxury system; giving a depth of SF1: 39mm, SF3: 55mm, SF4: 69mm.
² The visible interlock is in fact 33mm for our unbalanced vertical slider when including the spring catch adaptor.
Balanced Vertical Slider - Heavy Duty System
| Recommended Sizes | |
| Min. Width (mm) | 400 |
| Max. Width (mm) | 1500 |
| Min. Height (mm) | 900 |
| Max. Height (mm) | 2800 |
| Max. Panel Weight (kg) | 50 |
| Key Dimensions And Sight-lines | |
| Outerframe Depth (mm) | 56 |
| Sash Depth (mm) | 29 |
| Glass (mm) | 4 - 20 |
| Largest distance to visible glass (mm) | 80 |
| Size of Vertical Interlock (mm) | 35 |
Tilt Back Vertical Slider - Luxury Subframe System
| Recommended Sizes | |
| Min. Width (mm) | 400 |
| Max. Width (mm) | 1250 |
| Min. Height (mm) | 800 |
| Max. Height (mm) | 2450 |
| Max. Panel Weight (kg) | 18 |
| Key Dimensions And Sight-lines | |
| Outerframe Depth (mm)1 | 44 |
| Sash Depth (mm) | 19.4 |
| Glass (mm) | 4 - 6.8 |
| Largest distance to visible glass (mm) | 81.5 |
| Size of Vertical Interlock (mm) | 27 |
¹ We offer three different subframes for our Luxury system; giving a depth of SF1: 39mm, SF3: 55mm, SF4: 69mm.
| Specifying - Suitable Applications | |
Please note: Glass specified must comply to the glass safety BS 6262: Part 4, 1994 regulations. (see document downloads) |
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| Document Downloads | |
| Secondary Specifications
(20 page specification guide, detailing all available secondary glazing.)
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(2.1 Mb) |
| Fitting & Measuring Guide
(8 page installation and measuring guide for our secondary glazing.)
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(0.4 Mb) |
| Glass Safety Guidelines
(Guide to where you must comply with glass safety regulations.)
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(0.1 Mb) |
| Technical Manuals Downloads | |
| Economy Odd Leg System
(Section Identification, Profiles, Combinations and Sight lines.)
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(0.4 Mb) |
| Luxury Subframe System
(Section Identification, Profiles, Combinations and Sight lines.)
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(1.0 Mb) |
| Heavy Duty System
(Section Identification, Profiles, Combinations and Sight lines.)
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(0.4 Mb) |
| Technical Drawings - Downloads |
Technical drawings can be provided in DWG or DXF format, please contact us. |
Please remember all sizes are for guidance only and are subject to location of the fitted product. Please contact us for more information.
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