How to Insulate a Single Brick Extension

How to Insulate a Single Brick Extension

Good insulation can make the world of difference to an extension. If you’re having a new one built you can get this included as part of the overall design. However if you move into a property with a single brick extension and no insulation, how do you resolve the issue?

Here we consider the best way to insulate a single brick extension. Remember whatever you opt for, the finished result should adhere to current building regulations. As such it is often a good idea to find out what your local building inspector will require. It’s better to know in advance than to have work done and then discover you haven’t fulfilled their requirements.

Single brick wall insulation

wall insulationThis refers to insulation that is installed inside the extension. Single brick wall insulation of this type is typically cheaper, so it’s good for your budget. However you will lose some of the room space during the installation process.

One option you could go for would be to have stud walls installed in the room. The space in between the stud walls and the brick is filled with insulation. Obviously this will mean the room will become smaller, so bear this in mind if the extension is already quite small as it could make a crucial difference.

The stud walls can be made with breeze blocks or timber. The latter is the better choice because it is less messy and the wall will also be thinner. When you are fighting to keep every centimetre you can to maintain the size of the room, even the slightest difference will matter.

The other option you could go for is to use insulation boards that are fixed directly to the walls inside the room. This is only recommended if the wall is flat and smooth though – if this is not the case you may find it won’t work as well as it should.

You can also combine the two techniques if you wish. Stud walls can be erected with insulation packed inside as mentioned above. Then you can add another layer of insulation by way of the boards mentioned here.

External wall insulation

external wall insulationWhen considering insulating single brick extension, you may want to consider external insulation instead. This could be the better option if your extension is small and every centimetre of space indoors counts. You should look into whether planning permission will be required in this case.

There are several areas to consider when you are pondering over the idea of getting external wall insulation. For example, you have to consider the condition of the outer walls. If they are substandard you cannot simply put the external insulation over the top of them. They would have to be repaired or treated first, which will add onto the cost. Of course, if the walls are in poor condition they should be repaired anyway.

There are plus points to consider as well though. For example your life won’t be turned upside down during the installation process. Since the work is done outside your property you can get on with your life as normal. This wouldn’t be the case if you had insulation installed inside the extension. You don’t lose any room inside the extension either, although you do have to bear in mind the impact of the extra layer. For example soffits and fascias might be affected; you may not have the room to allow a layer of insulation to be added in this way. Drainpipes may also have to be moved.

As you can see while one single brick extension might be better with internal insulation, another might work better with external insulation. Your budget, the size of the extension and various other factors will all come into play here. We already know internal wall insulation is typically cheaper than insulation that is applied externally. However it pays dividends to shop around too. Get at least three quotations from different companies and make sure you get all the details of the job as well. You can then more accurately compare them in order to choose the best one for your needs.

You might be tempted to go down the DIY route if you are opting for internal insulation with the insulation boards. However do bear in mind the work must be done to a high standard. If you should ever want to sell in the future, shoddy work will undoubtedly come up in the surveyor’s report and it could end up causing significant problems. Getting it done right now is by far the best solution for warmth and peace of mind.