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Windows: single, double or triple glazing
Posted by Tim Pullen on 3rd June 2009 at 10:07 am
If you are thinking about changing your windows you will need to think about U-values. A U-value measures of the rate at which heat escapes through a fabric, so the lower the figure, the better. A U-value of zero means that no heat is escaping. It is expressed as Watts per square metre…
Posted in: Energy efficiency
The case for secondary double glazing
Posted by Tim Pullen on 21st August 2009 at 12:08 pm
I recently helped a lady refurbishing a typical 1960s three-bedroom semi with energy efficiency issues. A quick heat loss calculation gave a peak heat load of 8.5kW which should have equated to a use of about 10,000kWh of gas per year. Her actual gas consumption was 15,000kWh p.a. which was used…
Posted in: General, Energy efficiency
Sash windows can be made energy efficient
Posted by Cathy Debenham on 4th November 2009 at 11:24 am
Traditional timber sash windows are often associated with howling draughts, and are under threat as people replace them with plastic double glazed units. But before you throw yours on the scrapheap, read English Heritage's research which shows that simple repairs and basic improvements can significa…
Posted in: Energy efficiency
Secondary glazing for sash windows cuts cost and increases comfort
Posted by Cathy Debenham on 15th December 2011 at 9:55 am
'I bought my existing house in 2009 and, although the walls had been well insulated in 1994 by the developer with 100mm expanded polystyrene fitted between the studs, there were improvements that could be made,' writes Brian John Griffiths, one of our shortlisted contributors. 'Firstly, I topped …
Posted in: Energy efficiency
Secondary glazing for sash windows cuts cost and increases comfort (Revised)
Posted by Cathy Debenham on 21st December 2011 at 2:50 pm
Winner of our Keep Warm: Spend Less competition 'I bought my existing house in 2009 and, although the walls had been well insulated in 1994 by the developer with 100mm expanded polystyrene fitted between the studs, there were improvements that could be made,' writes Brian John Griffiths, o…
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How to maximise the benefit of secondary glazing
Posted by Simon Forsyth on 2nd February 2012 at 9:35 am
Q: Our property is old and the windows are not double glazed but made of oak and have 6 - 8 panes per each half of the window. Any ideas about secondary double glazing appreciated. A: Thinking back to first principles, the aim is to stop 'coolth' getting into the room - draughts of c…
Posted in: Energy efficiency
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