Architects impressed with secondary glazing solution

Architects at a Warwickshire practice were said to be so impressed with Granada’s secondary glazing system that they decided to get it installed to improve thermal efficiency and reduce energy costs in their own premises.

Jonathan Holland Architects, based in a Grade II listed property in Kenilworth, had invited a Granada Glazing specialist to present a secondary glazing CPD session – and quickly recognised that their building’s original, single-glazed windows could benefit from additional thermal insulation.

According to Granada, studies have shown that up to 70% of the heat from buildings is lost through single-glazed windows. The company adds that quality secondary glazing reduces heat loss by up to 65%, is less expensive than full window replacement and can be the only option to improve thermal efficiency in historic or listed properties.

Granada Glazing fitted eight secondary glazing units in total: four balanced vertical sliding units, a trio of three-panel horizontal sliding units and one two-panel horizontal sliding unit – all with 4mm toughened Low E glass to reflect heat back into the rooms.

Designed specifically for traditional box sash windows, balanced vertical sliding units blend with the internal décor and are designed to be undetectable from the outside, maintaining the character of a building’s external appearance.

Suitable for all property types, Granada’s slimline aluminium secondary glazing frames can be powder coated in over 200 RAL colours. The product range encompasses hinged, sliding, vertical sliders, including tilt back, and lift-out options.