Cavity wall insulation causing damp ?

r2015

I got my walls cavity insulated in June and the house doesn't cool down so quick when the heating goes off at night so when it comes on in the morning, I've got warm air heating, it doesn't blow so much warm air about. During the day it is also switches off entirely when the temperature has been reached, before there was always a slight background heat.


I now get more condensation on the inside of my double glazed windows in the mornings and in the bathroom when I have a shower.


I believe this is caused because the walls are now warmer than the window glass and the heating not being on so often.

[Deleted User]

This has just been on Radio 4 You and Yours today. Apparently, the problem with CIGA refusing to pay out has become such a problem that the Government are now investigating.

They spoke to a woman who had £15,000 worth of damage caused by CWI which should never have been installed, but she didn't get anywhere until she complained to her MP. The contractors were insisting that there was no problem, even after the independent inspection that they had commissioned had said that there was.

Annie1960

Jeff Howell of the Telegraph has been talking about this issue for some time.

https://www.google.co.uk/search?rls=en&q=telegraph+jeff+howell+cavity+wall+insulation+mould&ei=jGJOVcS_B4fj7AbOlICYBw

warmhands.coldheart

I've said this before on other threads but here goes again for what it's worth. Has the house ever had any form of CWI in it before? We had our house "topped up" years ago as there were cold spots all around the house. Turns out the CWI had never been properly installed and had all sunk/settled in the cavity leaving big empty voids. Contractor drilled test holes, inspected and told us he had to us a certain wool type CWI injected in as mixing different types of CWI can cause issues. ie you can't have polystyrene (beads or other type) on top of wool type as they work differently and can cause damp. Could this be a possibility in your case?

Furts

Annie1960 wrote: »

Jeff Howell of the Telegraph has been talking about this issue for some time.

https://www.google.co.uk/search?rls=en&q=telegraph+jeff+howell+cavity+wall+insulation+mould&ei=jGJOVcS_B4fj7AbOlICYBw

The shocking aspect of this article is not Jeff's attack on John Campbell, but the response that he received to this. For the benefit of Jeff , for the benefit of Dianna Goodwin (the lady in the article) and for the benefit of mse Forum users I can state that my profesional dealings with John Campbell have produced an equally dismal result. The solution to this is not the customer care course referred to in the article. Total re-education or instant dismissal would be more appropriate.

dampdaveski

I think Jeff Howell is a first class 'tool' however there are aspects of his continued rants about CWI that i find myself agreeing with.
The biggest issue i've found with CWI (Cavity Wall Insulation)is that a pre installation survey is carried out by people that just don't have the correct knowledge.
when you add any form of insulation to a property the fine balance between having a condensation problem or otherwise is changed and if you don't do anything to get that fine balance back where it should be then problems will escalate. From that I mean increasing ventilation.

I've come across lots of people who have been desperate to get the CWI removed, but in actual fact all they needed was to improve the ventilation to the house by upgrading extractor fans etc.

Obviously if it has been badly fitted with great voids all over the place or there are other building faults then ventilation isn't necessarily going to be a cheap fix.

Moral to the story is to get the property inspected by a competent surveyor who specializes in 'damp and condensation' BEFORE you have it fitted.

RedRuby, apologies if my post doesn't help you (though I have just seen that this is an old post) -.-

Furts

dampdaveski wrote: »

I think Jeff Howell is a first class 'tool' however there are aspects of his continued rants about CWI that i find myself agreeing with.

IIRR Jeff was a bricklayer in earlier life and is now a journalist. I have great respect for good brickies, but am wary of journalists. Journalists make a living based on "bad news is good news for selling newspapers". They have a vested interest in finding fault.

I too, do not fully agree with Jeff's stance on CWI. My view is similar to yours.

Ultimately, countless thousands of homeowners have allowed CWI to be installed in their homes without doing the simplest stages of due diligence, or research or checking. Harsh as it may sound, these people are victims of their own misfortune. The lady in Jeff's article is a prime example of this.

rgannon4

I think theres a certain trust that is automatically attributed to a Government Scheme, so I whilst I agree that homeowners should hold some due-diligence... miss-selling seems apparent.

It looks like there is now a process to diagnosing these problems, starting with employing a charted surveyor to help diagnose where the damp is coming from. Contacting the firm who sold it to the proprietor and allowing them the chance to remove it and make things correct or contact CIGA if no response.

Having read Jeff Howells very comprehensive argument on CWI, it seems that its effective on some homes but not all.

http://www.askjeff.co.uk/cavity-wall-fill/