Our secondary glazing is an additional internal window frame manufactured from strong but lightweight aluminium with narrow profile sections giving slim sight lines.
There are many situations where secondary frames can be very effective with benefits including:
Noise Reduction
External noise pollution can be reduced by up to 80% which is equivalent to 54db.
Thermal Insulation
Heat loss can be reduced by up to 65% also preventing draughts and improving comfort levels.
Security
The internal frame creates an additional barrier against forced entry.
And with product styles for any situation including, Vertical Sliders, Horizontal Sliders, Side Hinged, Fixed and Lift Out, there’s a secondary frame solution for all scenarios.