Secondary Double Glazing
Secondary double glazing - lift out
The Black Knight secondary double glazing lift out windows are the simplest window design in the range.
With no moving parts it is also the most cost-effective design and is ideal for situations where there are no opening sections in the existing window or when access for maintenance and cleaning is only required periodically.
Each window has a glazed sash securely fitted in a bespoke frame and the panel lifts out easily for cleaning and access to the primary window.
Double brush seals ensure that the secondary double glazing is tightly sealed to reduce heat loss, eliminate draughts and, when the correct glass is specificed, cut down on noise.
The secondary double glazing lift out design is fully compatible with all the other design types in the range and can be installed in combination to suit your particular window design requirements.
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