Lift Out

A practical, cost-effective solution for windows that require occasional access with removable panels

Technical Performance Data

Full panel sizing and acoustic performance data for the Lift Out range. The slimmest sightlines in the Granada range - ideal for fixed, decorative, and heritage applications including arched and shaped openings.

Up to 49 dB Noise Reduction (Rw)
3,250mm Max Panel Width & Height
50 kg Max Panel Weight
6 Glass Types Available

Values are Rw (dB) measured to BS EN ISO 717-1. All tests performed with a 200mm air gap (glass-to-glass) and a 6mm single-glazed toughened primary window in a hardwood frame. Deduct 1 dB for a 150mm air gap; deduct 1–4 dB for a 100mm air gap.

Secondary GlassRw (dB)
Weighted
Rw+C (dB)
Traffic weighted
Rw+Ctr (dB)
Low-freq weighted
4mm Toughened474441
6mm Toughened494642
6.4mm Laminate494743
6.8mm Laminate494743
8mm Toughened494743
8.8mm Laminate494844
10.8mm Laminate494844

Rw data extrapolated from physical tests at Element High Wycombe (23/06/22 & 12/07/22). Test configuration: 1,200 × 1,200mm unit, 200mm air gap, 6.87mm standard laminate secondary glass, 6mm single-glazed toughened primary in a hardwood frame.

Data extrapolated from physical testing at Element High Wycombe (23/06/22 and 12/07/22).

Download Performance Data Sheet: GSG-DS002 Rev A — Acoustic

All dimensions in mm. Sizes are for guidance only and depend on glass type, subframe, and installation method. Contact us to discuss units outside the listed parameters.

Glass TypeMin WidthMin HeightMax WidthMax HeightAspect Ratio
(W:H)
Max Panel
Weight
4mm Toughened125mm250mm3,250mm3,250mmN/A50 kg
6mm Toughened125mm250mm3,250mm3,250mmN/A50 kg
6.4mm Laminate125mm250mm3,250mm3,250mmN/A50 kg
6.8mm Laminate125mm250mm3,250mm3,250mmN/A50 kg
8.8mm Laminate125mm250mm3,250mm3,250mmN/A50 kg
10.8mm Laminate125mm250mm3,250mm3,250mmN/A50 kg
Product RangeGlass OptionsMax. Window Size
(Including 16mm Timber)
Installation Options
Width (mm)Height (mm)Area (m²)Face Fix
Through Timber
Reveal Fix
Through Frame
Classic4.0mm tough207020571.7TIM-25x16TIM-25x16
Enhanced6.0mm tough322033073.6TIM-25x16TIM-25x16
Enhanced6.4mm Laminate322033073.4TIM-25x16TIM-25x16
Enhanced6.8mm Laminate322033073.2TIM-25x16TIM-25x16
Enhanced8.8mm Laminate322033072.5TIM-25x16TIM-25x16
Enhanced10.8mm Laminate322033072.0TIM-25x16TIM-25x16

Our Sheffield-based manufacturing base is home to our very own painting plant, allowing you to choose from a comprehensive palette of more than 200 powder-coated RAL colours to achieve a precise match with your Granada secondary glazing system. Suitable for new developments, heritage buildings, and complex commercial environments, our finishes are specified to meet the requirements of each project.

Stocked colours available from short lead times

White
RAL 9003
Cream
RAL 9001
Van Dyke Brown
BS 08 B29
Anthracite Grey
RAL 7016
Black
RAL 9005
+200 RAL
custom colours

Dimensions

All sizes given in mm.

Frame and panel tolerances: ±1.5mm

Maximum delivery sizes: 2,100 × 4,400mm

Glass Thickness Tolerances

  • Toughened: ±0.2mm
  • Laminated: ±0.4mm
  • Laminate interlayer: ±0.1mm

Thermal Data

Independently verified U-value data is not currently available for the Lift Out range. Please contact our technical team for guidance on thermal performance.

Acoustic Test Conditions

All windows tested at 1,200 × 1,200mm with a 200mm air gap and 6.87mm standard laminate, against a wood-framed primary with 6mm single-glazed toughened glass.

Product Case Studies

Sheffield Buddhist Centre

Sheffield Buddhist Centre

Secondary glazing was installed at the Sheffield Buddhist Centre to improve thermal performance, reduce draughts, and lower the building's carbon footprint. The system sits discreetly within the existing window reveals, preserving the historic frames and complying with listed-building conservation requirements. The installation has increased occupant comfort, particularly in the Great Hall, while protecting the building's heritage fabric.

Compton House, Hay-on-Wye

Compton House, Hay-on-Wye

Secondary glazing was installed at Compton House, a Grade II listed townhouse within the Brecon Beacons National Park conservation area, to improve thermal and acoustic performance across five residential flats. The solution enhanced occupant comfort, reduced noise intrusion, and delivered a cost-effective upgrade while retaining the original single-glazed timber sash windows and preserving the building's historic fabric.

Read full case study
What colours are the frames available in?
All Granada secondary glazing products are manufactured from durable aluminium and powder-coated in-house for a high-quality, long-lasting finish. We hold a selection of stocked colours, including:

  • Van Dyke Brown (BS 08 B29, Satin)
  • Cream (RAL9001, Satin)
  • Grey (RAL7016, Satin)
  • Black (RAL9005, Satin)
  • Granada White (RAL9003, Satin)

To ensure short lead times and offer maximum flexibility, Granada has invested in an in-house powder coating line. This allows us to provide fully customisable aluminium frames in over 200 RAL colours, giving customers the freedom to match any design aesthetic while maintaining the durability and performance expected from our secondary glazing systems.
Are there any guarantees or warranties?
Granada secondary glazing is built to last and comes with a comprehensive warranty for peace of mind. All frames and glazing are covered by a five-year warranty, with a two-year warranty on moving parts.

Should you experience any issues, our dedicated customer care team is available to assist. Please contact us on 01909 499 899 for support and advice.