It is less than years since a solution was found to dampness entering homes. For hundreds of years houses, even those of the wealthy, were cold, damp, and pretty miserable.
Once houses began to be constructed with brick and stone, various solutions were tried to keep damp at bay. If you walk around and see anything pre, more often than not, it will be rendered.
This provided a protective layer over the brick which could be painted to try and keep wet weather on the outside. Grants seem to attract the wrong type of companies in my humble opinion. Anyway I paid for it and got it installed this winter by a bead insulation company. They got it done within a week fo calling and it cost me just under a grand. Its a big detached house so I thought that was pretty reasonable.
No problems as yet and I don;t expect there to be any. Hi Jim, while I agree with you that workmanship is everything, there are companies out there that work with Government schemes like ECO that offer a quality installation. I think, negative newspaper headlines from the Daily Mail and the Express with respect to the cavity wall insulation schemes do not help.
So, many in the public are turned off by problem stories surfacing as a result of poor workmanship, but then those same newspapers do not devote any time to actually cover the positive aspects of insulating your property. Just out of interest did the cavity wall insulation company provide a third party warranty with the installation as well?
Nick, Thanks for your reply. Perhaps there are some exaggerated stories out there, but I think my experience shows that there is no smoke without fire. I hope that the government put some better controls in place to make sure these installers do a good job — and dont waste time with surveys that go no where — that would be my advice.
I think I got a warranty on my job, I will have to try and dig it out. Is this something they are supposed to provide? Ive never really been one for warranties mind.
You can pay hundreds of pounds for a piece of paper — don;t tell me these companies turn up 10 years down the line when my walls get wet! However, I would go an cite a couple of reasons, why a private contractor with no certification may lead to problems vs. The Government approved and certified contractor would have to jump through a serious of hoops, and as mentioned would be certified externally for competence.
Whereas the private contractor is unregulated. Any funded jobs now via ECO or a Government backed subsidy scheme have to be surveyed and logged in a central database to prove they are suitable for the measure. By installing as part of a Government funding scheme you are obliged to provide an external warranty, such as CIGA or GDGC, so if something went wrong with the installation, you would have the first steps available to claim on the install to have it re-mediated.
On the otherhand, you may well have had a very competent installer, and it is very difficult to judge standing here, purely answering back to your comments. Can I just ask what is the finish of your existing walls? Do you have brick or existing render? Is cavity wall insulation safe?
I have seen that dreadful fire in London and I am now wondering if we are at risk. We had cavity wall insulation put in 2 years ago. Thanks for your help. Hi Norman, with regards to the the news over the last 24 hours — it is absolutely tragic, our deepest sympathies go to all those affected in North West London.
In answer to your question, there are three products that tend to be used in cavity wall insulation mineral wool, polystyrene beads, or foamed insulants. Nowadays the most common material is the mineral wool as it is the cheapest to install.
It is likely if you property was installed with cavity wall insulation in the last 2 years, white wool was injected into the cavity if it was done under a Government scheme. To be honest with any type of cavity wall insulation you are safe — it would be very very unlikely to accelerate a fire since the insulation is contained within 2 skins of brick. I live in a house which is only 2 years old. They say it will improve the efficiency even more.
Would it cause damp problems and is it really necessary? I live in a Danish built house, with well insulated weatherproof external walls. My question is if I wanted to improve the insulation, would it be worth using cavity fill insulation, and ould it be safe to do so??? I should like to install insulation in a property in Exmouth Devon. How do I find out whether it needs doing or has already been done 2. I would prefer a local based contractor, rather than a national one Thank you. We are having real trouble finding anyone to do the job in Oxford.
Happy to pay since there are no grands for us. Problem is our concrete build s house — there is a cavity, many people on the street had it done few years ago but now no one wants go give us guarantee. Can you have cavity wall insulation in our 20year old bungalow that was built with therma blocks on the inside and will it benefit us.
Recently we added an airbrick to one ene of gable end. Lots of white grainy substance flowed out following removal of visual inspection pipe of subfloor void whilst airbrick being fitted. Further visual telescopic check showed no insulation inside this part of wall.
Airbrick placed in situ into subfloor void without a liner through cavity. Should we be concerned about any future problems within cavity wall further along the gable end as we do know eps beads were installed to the gable end wall. In summer the heat can be seen coming off the external brickwork.. The small void was retrofilled but we were asked if it was a solid subfloor. We thought not but subsequently have been told although we have a subfloor void it would be classed as a solid floor.
Would this affect the installation in any way and should we inform the company or not that filled the small void of about 1m square.
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May 6, at pm. Lisa says:. May 8, at am. May 9, at am. Mrs S Baker says:. May 8, at pm. PhilliP says:. November 18, at pm. November 21, at pm. JimmyThoms says:. December 6, at pm. It is important to realise that cavity wall insulation can play a role in causing damp: if the wrong type of insulation material is used, a pre-existing damp problem can get worse. In some cases, installing cavity wall insulation will create a damp problem where none previously existed.
In older properties, insulation made from natural materials can help the walls breathe, allowing moisture to circulate and to leave the house. The correct type of insulation can also help prevent damp by keeping the house at a constant temperature and reducing condensation. Before cavity walls were introduced, solid walls were commonplace. If you live in a particularly old house, it may have solid walls.
One way to tell whether you have solid or cavity walls is by looking at the pattern of the bricks on the outside. However, if the bricks face in different directions—so you can see the long sides of some bricks but the shorter, square-shaped ends of other bricks—you probably have a solid wall.
Solid walls may allow penetrating rain to enter the building more easily, which is one common cause of damp. Having waterproof products on your walls may seem like the ideal solution to damp, but in some cases it can make a damp problem even worse.
One of the reasons we love working in London is the immense variety of the architecture around us, which provides such a clear window on the past.
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