Pilkington energiKare™ Legacy was recently installed in a social
housing project in Camden, London by United House. The new glazing
has helped to save up to £300 a year on heating bills. The house
provides a fantastic example of how to install energy-efficient
glazing in homes with traditional windows - without losing their
character.
In the £68,000 social housing refurbishment in Camden, Pilkington
energiKare™ Legacy provides similar energy efficiency performance to
standard replacement low-e double glazing but in a much thinner
profile. This allows architects and specifiers to refurbish
buildings in line with Part L 2010 of the Building Regulations and
maintain or closely replicate the original frames.
The aim of the refurbishment was to improve the U value of the
windows from an energy inefficient 4.8 centre pane U value to an
improved 1.8 centre pane U value, and with the innovative Pilkington
energiKare™ Legacy glazing system the U value target was easily
reached. The result is excellent thermal performance from a unit as
thin as a single pane of glass.
Daniel Johncock, Building Services Engineer at United House, said
“One of the biggest challenges facing local authorities and other
housing providers is the much-needed retrofitting of over seven
million energy-inefficient homes in the UK with a ‘hard to treat’
status. In order to improve the energy efficiency of this home, we
specified Pilkington energiKare™ Legacy as it is an unrivalled
glazing product that enabled us to retain the existing façade
appearance, whilst substantially improving one of the poorest
performing elements of the building fabric.”
Pilkington energiKare™ Legacy utilises two panes of glass separated
by a gap of 0.2mm (compared to a typical 16mm gap in traditional
double glazing). The glazing’s overall thickness of 6mm is enough to
provide an aesthetically pleasing glazing solution where a slim
profile is needed and a thermally-efficient window. Moving to
glazing with a low centre pane U value whilst maintaining the high
light and solar transmission associated with single glazing can save
over £300 per year on heating costs, and around 32 tonnes of CO2
over the lifetime of the window, in a typical 3 bed semi-detached
property.
Pilkington energiKare™ Legacy utilises advanced Pilkington Spacia™
technology.
This consists of an outer pane of low-emissivity glass and an inner
pane of clear float, with a vacuum rather than air or another gas in
between.
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