Looking into cavity insulation.
Or what is commonly known as the cavity gap between them this actual description means that they are cavity walls. You may ask what is the point of having a cavity wall?
So what is the point of insulating cavity walls?
When you insulate a cavity wall this allows you to keep the room more effectively and efficiently managed, using smaller amounts of energy means that they carbon dioxide emissions will be reduced (these as we all know one the biggest causes of climate change). This also means that your heating bills will be reduced as the heat is retained within your room.
On certain external walls you will get a problem with condensation which is where dry rot and mould will occur, having the insulation on the walls will help reduce the amount of condensation within the external walls.
Cavity wall insulation works very very simply, as heat will always go from one area to another. In winter when it is really cold outside the heat will disappear from your home even quicker into the surrounding area; if you have insulation in between the two layers of bricks it will slow down the speed at which he leaves the house for as long as possible. It essentially makes it more difficult for the heat to pass through your walls into the corner area.
The insulation effectively has little pockets where the heat is stored which stops the heat from leaving the insulation; these pockets are known as your walls U value, which is a guage of how quickly they lose heat (the lower the you value the longer it takes for the heat to leave your home).There are a number of types of cavity wall insulation from when the house is being built, installing insulation slab in the dividing walls to injecting the walls with a foam which solidifies inside the wall and acts as an insulant.
So is there an easy way to tell whether your home as cavity or not?
There are a number of ways the easiest way and the most common is to look at the pattern of the bricks on the outside of your home. Homes that have cavities will generally be built with bricks all facing one way, homes that are produced with solid walls of bricks in alternating pattern so what they will be one be placed then the next brick will be placed a 90° angle to when looking at the wall it looks like a full brick, half brick, full brick.
If the brickwork has been rendered or some sort of external plastering, you can generally taking measurement of the widths of the wall and this will give you an idea whether or not there is a cavity infill. As a rule of thumb if a wall is more than 250 mm wide then it is very likely to have a cavity, a much narrower wall would suggest that it’s a solid wall.
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