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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
An introduction to solid wall insulation
Posted by Tim Pullen on 3rd December 2009 at 2:13 pm
A third of the heat lost from a house is through the walls according to the Energy Saving Trust. An uninsulated, 225mm solid brick wall will have a U-value of 2.23W/m2. Adding just 50mm of PUR (Kingspan or similar) insulation will reduce that to just 0.4W/m2. Bear in mind that the current building r…
Posted in: Energy efficiency
Close your curtains to keep warm (and reduce bills)
Posted by Cathy Debenham on 11th January 2010 at 1:21 pm
Walking home from a friend's house last night I was surprised to see how many people hadn't closed their curtains, despite sub zero temperatures. Hanging curtains, and closing them at dusk, can make a significant difference to the warmth of your house, and to how much you spend on heating. Resear…
Posted in: Energy efficiency
[Auto-Saved] Does DIY double glazing work?
Posted by Tim Pullen on 8th April 2010 at 9:36 am
![[Auto-Saved] Does DIY double glazing work?](i/blog/127071682738201_thumb.1270716827.jpg)
Q: Would attaching a 4mm polycarbonate sheet to a single glazed window with magnetic tape (giving an air gap of 3mm) be worthwhile as thermal insulation? Is a 3mm gap too small to be effective? A: A single glazed window will have a U-value of around 5.4W/m2K. A 4mm thick sheet of polycarb…
Posted in: pending
Does DIY double glazing work?
Posted by Tim Pullen on 14th April 2010 at 9:10 am
Q: Would attaching a 4mm polycarbonate sheet to a single glazed window with magnetic tape (giving an air gap of 3mm) be worthwhile as thermal insulation? Is a 3mm gap too small to be effective? A: A single glazed window will have a U-value of around 5.4W/m2K. A 4mm thick sheet of polycarbonate (a…
Posted in: Energy efficiency
How to insulate your loft conversion - Q&A
Posted by Tim Pullen on 4th October 2010 at 9:35 am
Q: The house I bought recently has the loft converted into extra rooms. Should I pay a company to take down the plasterboards on the wall and ceilings and install insulation such as Kingspan boards, as there is only 10cm of insulation according to the blueprints? A: To answer this question direct…
Posted in: Energy efficiency
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