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A-Z of DIY & Building Guides Fitting Insulation

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Contents:

Date Published:
27/05/2008

Insulating Windows, Water Tanks & Pipes

Draught-Proof Windows

Double-glazing is a big investment but instantly makes your home feel a lot cosier as heat loss through the glass is halved. Before you buy, check the frames and glass carry the Energy Saving Recommended logo. As an interim DIY measure, fit secondary glazing kits that will cost between £20 to £50 per window. Fix draughty gaps around window frames with a flexible sealant.

An example of draught proof windows

DIY Payback

Professionally installed double glazing units can save you about £100 a year in heating costs and even DIY secondary glazing will give you significant savings and make rooms feel a lot warmer.

Water Tanks & Hot Water Cylinders

If we all lagged our hot water cylinders with an insulated jacket, enough CO2 would be saved to fill over 4.2million double decker buses. An 'off-the-peg' jacket for your cylinder will cut heat loss by 75 per cent as long as it's at least 75mm thick.

If you have a cold water storage tank in your loft, leave the area under the tank free of insulation so that warm air rising form the rooms will stop the water freezing. Tie insulation fibre around the sides and over the top of the tank or buy a tank insulation jacket.

DIY Payback

A thick 80mm cylinder jacket costs around £10 and will save the average three-bed semi homeowner £20 per year, so you start saving in only a few months.

Protect Pipes

Protect exposed water pipes with foam tube insulation. The tubes have a ready-cut split along their length so you can just push them over any exposed pipes in your loft or other exposed areas.

DIY Payback

For about £10 you should be able to tackle the job yourself and the saving should be about the same figure per year. Well worth it.

More Insulation & Heating Info

For more about designer radiators, click here >>

Need a new boiler? Find out more here >>

Find out how to heat your home here >>

Need to bleed a radiator? Click here to find out how

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  1. When your selling loft insulation for a living, you soon discover that people are not aware, *nor do they care*, that the HEAT in the home is held back [it's retained] by a thin sheet of chalky ceiling plaster-board. To understand the problem get an small off-cut of scrap plasterboard and examine it. Question: How much heat is that going to retain? the answer is either none, or very little indeed. In 1961 ROOF / LOFT INSULATION was an hard idea to push, in 1971 - 2001 the concept of heat conservation was beginning to be appreciated, but guess what, OAP still didn't want it. Why? because they did not want workmen in their homes. To counter this the Govt decided to give it away free - they brought out grants, but even then the take up was'nt that great. An English mans home is his castle, and we know how cold castles can be in the winter. It's now 2009, if I go down a street, any street in the UK, I know that 40% of the homes have no insulation, or have 1960s 1" inch insulation, knock on these doors and maybe providing it's free you might find 3 who want it done. Some advice: Lay it along the joists, then across the joists, and make sure the ends are closed / or close knit, otherwise you have 50 little tunnels spewing heat out into the eaves. And insulate under the tiles, ridge to gutter - along / down the joists, I know its a sod off a job, but well worth the effort. And get it done, today, not next year.
    Posted by 40 years Man / Boy on 08/04/2009 02:50:20
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  2. I was looking for a comparison of available insulation materials for a new build. their efficiency, cost , life-length etc. This would be most useful. I do not need to be convinced to use insulation only want some practical advice to make decisions.
    Posted by shirley bork on 21/03/2009 11:04:59
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  3. Could not find any info about insulation under solid floors. eg flag-stones or concret. Ian
    Posted by Ian on 13/03/2009 22:47:51
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  4. Hi, In at least one project, possibly including a Brighton penthouse, you noted a remarkably efficient insulating 'foil' worth umpteen inches of 'cosywrap'. Can you possibly repeat ,divulge, the name of such? Best regards, Derek Noden
    Posted by Derek Noden on 20/08/2008 17:53:13
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