Is it a good idea to install it??
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Cavity wall insulation
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Posted 5 months ago #
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Yes. The Gov't subsidies makes it quite cheap these days too.
Posted 5 months ago # -
Mostly a very good idea. There are exceptions (cavity not big enough etc), but mostly worth it.
Posted 5 months ago # -
depends,
If your house is older like mine circa 1900's removing the cavity by filling it takes away the buildings ability to circulate air and remove moisture from the building fabric, this in turn can lead to issues with damp etc,the cavity wasn't a mistake it was put in for a reason,
due to the rise in heating bills etc this is always something people consider as an easy to remedy option,
newer houses don't know,
Posted 5 months ago # -
Not as simple as just the age for judging. It also doesn't stop the cavity doing its job - it slows down the air movement rather than eliminating it. It is an easy remedy for most householders.
Posted 5 months ago # -
Just been offered cavity insulation for £149 (2 bedroom , semi-detached house) and have absolutely no idea if this is a good idea or not!?
Anyone have any other views on this insulation now that we're a few months into winter (albeit a warm winter compared to last year)?
Posted 4 months ago # -
Did you see Rip off Britain as well then?
Posted 4 months ago # -
Cost me £99 for 3 bedroom semi just late last year, has made a noticeable difference.
Posted 4 months ago # -
we got ours free, courtesy of British Gas, 5 floor appartment block, and we dont habve gas.
Part of their commitment to reducing global warming.
Posted 4 months ago # -
try your energy supplier.
Posted 4 months ago # -
Ours came from these guys.
Posted 4 months ago # -
It would seem EDF is doing a promotion again, looks like it's free but didn't check the details.
https://www.edfenergy.com/products-services/for-your-home/winter-saving/winter-form.shtml
Posted 4 months ago # -
Some interesting reading on the EST page, looks like I might be able to get it for free...the only trouble being "meterage charges" if your walls are bigger than they say they should be
Posted 4 months ago # -
Get it done. Its in the top three things to do to your home to reduce bills. check your loft has the full recommended amount of 275mm and feel the difference
Posted 4 months ago # -
Do you live in a very rainy place? I have read (due to our own damp problem sadly) that it can be an issue if you do.
Posted 4 months ago # -
As greatape - some houses/positions etc mean it will cause more problems than it will solve. I won't put it in our house and am sick of the continuous calls we get telling us 'it'll be fine'.
Posted 4 months ago # -
Have a word with local building control officers, they'll tell you if it's suitable.
Posted 4 months ago # -
Most of the "reasons" not to do it are myths in my opinion.
The only reason the cavity approach is used, is because it's far cheaper to build a Brick and block wall with a cavity, than it is to build a double skin solid brick wall (like they used to do)
Personally I would say go for it, it's not as good as other forms of insulating your house, buts it very cheap and it's certainly better than doing nothing at all.
I would ring around and ask what fill different people are using, try and get someone who uses Polystyrene balls rather than mineral wool.
Polystyrene fills more completely leaving less voids, and it doesn't slump over time like mineral wool.
Far more effective in the long run.Posted 4 months ago # -
get someone who uses Polystyrene balls rather than mineral wool.
Unless things have changed in recent years most specifiers would only recommend mineral wool or rockwool when I was in the business.
Polystyrene used to have problems with the resin that was supposed to hold it together.
Posted 4 months ago # -
There are people that use polystyrene around.
Not too many as mineral wool is easier (from the installers point of view) so most take the easy option.
(and will more than likely tell you it's better too
)
Posted 4 months ago # -
I'd say no. Can cause damp by bridging the cavity and letting moisture travel from the outer skin to the inner wall. Can cause brick ties to corrode. Leaves 22mm holes in your brick pointing. Cavities let air circulate.
Posted 4 months ago # -
Here - some advice for you on a website. It is a good idea for most with a few exceptions. Saying something can cause something else is not quantified. Water on a steel bike can cause rust, yet we ride bikes in the rain!
Posted 4 months ago # -
Generally a good idea unless your walls are constantly wet, eg you live where wind swept rain is a problem, or you already have damp problems due to other issues.
The rics scotland advice seems fair:
http://www.rics.org/site/scripts/news_article.aspx?newsID=2120
Posted 4 months ago # -
The Beeb did something last night (0730ish, Rip Off Britain? don't know I was doing the dishes) on the problems cavity wall insulation could cause if not done right. Very superficial before they went on to energy suppliers acting like they are above the law, but iPlayer is your friend.
edit - beaten to it
Posted 4 months ago # -
The phead example is why I won't install - exposed location with gable end constantly battered with prevailing winds and rain hitting it straight on.
Posted 4 months ago # -
First post dutchandy.
I wonder who employs dutchandy?
Posted 2 weeks ago # -
i also read in Ireland they have banned installing fiber and going back to polystyrene beads as less problems with damp
Is that because it rains a lot there? Should we do the same in the South East?Posted 2 weeks ago # -
Posted 2 weeks ago #
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Posted 2 weeks ago #
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British Gas do it free of charge if you're a customer
Posted 2 weeks ago # -
well i was against having it done at my gaff due to exposure.
drilled a hole through both walls with an SDS gun - 1 meter drill bit and what came out on the end but some cavity wall insulation ....
Posted 2 weeks ago # -
First things first I am an electrician so before anyone accuses me of self promoting they are wrong
Just had my 4 bed detached house in Devon done by http://www.everwarm.co.uk
They used a almost "marshmallow type foam and we can feel the differance
Total cost £0000 , zero , nothing yep fugg all and we both work so it is not like we are on benifits
Posted 2 weeks ago # -
British Gas do it free of charge if you're a customer
British Gas do it free of charge if you're not a customer too
Posted 2 weeks ago # -
They used a almost "marshmallow type foam and we can feel the differance
Like how - maybe the weather got a bit warmer - I think we need something a bit more scientific than your feelings
Posted 2 weeks ago #
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