Secondary Glazing Double Hinged C7

Aluminium secondary glazing. Equal leg/ odd leg with built-in fixing cover. Hardwood subframes (FF) or overhang (RF) and handle integral to profile design.

The low profile design and good thermal and acoustic performance mean that secondary glazing is recommended by both Historic England and the Listed Property Owners Club as a suitable product for improving windows in historic buildings.

Features and benefits:

• Front face: 45 mm (left/ right), 38 mm (top/ bottom).
• Depth: 20 mm (face fix subframe), 36 mm (reveal fix subframe).
• Far better acoustic performance than standard windows insulation.
• Cost-effective thermal insulation for older buildings.
• Suitable for conservation areas and listed buildings.
• Fully bespoke, customisable to your exact requirements.
• 4 mm toughened glass as standard.
• Capacity for up to 12 mm glazing.
• High grade acoustic foam.
• Steel bearing rollers and clip locks (horizontal sliders).
• Pre-tensioned Caldwell Spirex balances (standard VS).
• Pre-tensioned Caldwell Torso2 balances (Deluxe Tilt VS).
• Fully removable sashes (Deluxe Tilt VS).
• Standard colours - white, brown, anodized.
• Discrete window furniture.
• Ancillary section to create combination units.

- Optional features:

• Flush fit pre-finished timber subframe.
• Acoustic and thermal glass options.
• Arches, rakes, shapes.
• Any RAL colour (two week lead time).
• Premium woodgrain finishes.