Secondary glazing reduces heating cost by two thirds

Installing Granada Glazing’s secondary glazing system has delivered a significant saving in energy costs for a North Derbyshire welfare centre by reducing heating needs by two thirds, as well as eliminating external noise intrusion.

All the windows at the Muslim Welfare Association’s Grade II listed building in Chesterfield are original and single glazed, which provided little thermal insulation for users of the facility and allowed noise from a neighbouring factory to enter the rooms.

The building’s owner contacted Bakewell-based Brocklehurst Property Maintenance, one of Granada Glazing’s trade partners to discuss options, suitable treatments and fit a total of 59 units.

A combination of horizontal sliding units and arched units were installed. All have Low-E glass with a special coating that reflects heat back into the rooms. Some windows feature an arched unit stacked over a horizontal sliding unit, while others were treated with two horizontal sliding units one above the other.

Duncan Brocklehurst, MD of Brocklehurst Property Maintenance, said: “In addition to the issues around heat retention, the customer was also experiencing excessive levels of external noise from a nearby factory, which proved particularly challenging during prayer sessions.

“The products that Granada supplied have ultimately helped to rectify both issues. The factory noise is now not noticeable at all, and the customer is able to run their heating for just one third the amount of time they were previously. It’s been a massive financial saving.”

Ellen Dawson, trade sales office manager at Granada Secondary Glazing, commented: “Given the requirements from a thermal perspective, we opted for a 4mm toughened Low E glazing solution that would drastically improve the building’s heat retentive properties.

“Where possible, we specified bespoke, arched units to match the primary windows exactly. Where this wasn’t possible, we instead stacked horizontal units on top of one another. Our entire suite of products offers incredible thermal and acoustic performance; it’s fantastic to hear that the customer has been reaping the benefits of the install so quickly.”

Suitable for all property types, Granada’s slimline aluminium secondary glazing frames can be powder coated in over 200 RAL colours.

The Granada Glazing product range encompasses hinged, sliding, vertical sliders, including tilt back, and lift-out options. Full training and marketing support is available to installers across the UK.