51 Clive place, Penarth

VELFAC triple-glazed windows and doors have helped transform a ‘run down’ family home into an award-winning example of energy efficiency. 

Energy efficient windows for a red brick house

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The house, built in 1948, was renovated and redesigned by architect/owner Nigel Humphrey who wanted to expand the available living space while virtually eliminating energy costs and carbon emissions - with the end result proving so successful that it has received a prestigious International Green Apple Award.

An ‘Almost Zero Carbon’ House
Achieving an almost zero carbon house was challenging admits Nigel: ‘I often use thermal modelling to create energy efficient buildings and I’m familiar with concepts such as Passive house, but this can be a costly option when renovating an older house. Instead, my strategy was to reduce energy losses as much as I could afford, maximise ‘free energy’ gains from the windows and solar panels, use a very efficient heat source and distribution system (with an air source heat pump and vertical wall panels) and import only 100% renewable energy from an external supplier. For this to work, good quality, energy efficient building products such as VELFAC windows and doors were essential and when our conservatory is replaced with solar PV glass, we should have all the energy we need.’

Dramatically Reducing Draughts
Stylish, triple-glazed VELFAC units proved highly cost effective in terms of energy performance, especially regarding air tightness: ‘Draughts were a significant source of heat loss,’ explains Nigel. ‘Before the renovation, the air within the house was replaced up to 10 times per hour; now, with VELFAC units (plus attention to detail) I’ve reduced the rate to 1.5 times an hour, a significant improvement.’

The composite aluminium/pine VELFAC system has also been used to transform a traditional post-war house into a stylish and contemporary home: ‘We opted for a mix of light and dark grey external aluminium framing to match the milled aluminium rainwater goods,’ comments Nigel. ‘Internal framing is finished in a clear lacquer to emphasise the wooden construction and to complement the light interior.’

51 Clive Place is an inspiring example of how to minimise energy consumption in a domestic house and has been awarded a 2015 International Green Apple Award for the Built Environment and Architectural Heritage.

Sector: Private house / renovation

Architect: Nigel Humphrey (owner) / mas architectural design

Specified for:

  • Energy efficiency
  • Sustainability
  • Slim frames / maximum daylight
  • Contemporary style
  • Design versatility

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