Cavity Wall Scandal
The PPI of the home building world; mis-sold cavity wall insulation and everything you need to know
When you consider the fact that as much as 30% of the heat that you produce within your home makes it way out through the walls, then it is easy to see why many people decide to arrange cavity wall insulation.
It is said that cavity wall insulation can reduce energy bills and make sure that your home is as warm and inviting as possible and for some people this has definitely been the case. However, retrofit cavity wall insulation might not actually do the things that you want it to, in fact, it could have the exact opposite effect.
The rise of wall cavity insulation
Over the past 20 years energy companies have felt the pressure to promote energy saving measures to those who own homes. The reason for this is to ensure that they hit energy saving targets, something which has definitely been pushed forward by the UK government.
After promoting the benefits of cavity insulation it was thought that there was a real interest in having it installed, which led to more than 6 million homes throughout the UK having it installed. Cavity Extraction
Whilst some people are finding that the insulation has done what they wanted it to, there are others who are finding that it isn’t quite able to deliver as they hoped. In fact, it is caused their homes to feel colder, damper and even be less energy efficient then it was before.
Why is this?
The short answer to this question is that not every house in the UK is an ideal candidate for retrofit cavity wall insulation. Homes that are built after 1930 come with cavity walls, these cavity walls are designed to ensure that the inside of your home is kept as dry as possible.
The outer walls of your home are not going to be watertight, bricks are made from a material which means that they are able to absorb water and they are porous too. If there has been a period of particularly heavy (or even just persistent) rain, then all those tiny little holes and cracks (which will appear over time no matter how much you take care of your home) are going to take in water.
In a home with cavity walls, the space between the two walls means that the damp that may be soaking into the outer walls is not going to end up making its way into the inner walls.
When you install cavity wall insulation into that wall space then you are creating a way for the water to travel between the two walls. Rather than simply staying on the outer walls, the insulation will soak up the water and then transfer it onto the inner walls. The insulation will also remain wet, thanks to the fact that there is no air flow in this particular space.
It can take years for anyone to notice any issues, however, mould and damp will soon form and the interior plaster and décor will be affected. Which can be costly to replace, as well as meaning that your home doesn’t feel like that warm space to call your own.
It isn’t known quite how bad the Cavity Wall Scandal problem is at the moment, however, it is thought that as many as 3million homes across the UK could be affected. Only time will tell what impact this will have and whether or not there is any chance that it will be dealt with and fixed for those homes.