How can I insulate exterior walls?

When it comes to thermal insulation for the exterior walls of your home, there are two ways you can install this wall insulation on your property: from the exterior of the building walls or from the interior of the walls. For the most part, installing thermal insulation from the exterior of the walls is the most popular option. Why? This method of installing thermal insulation in the walls of your home is cost-efficient and highly effective. In this article, you’ll find our tips on adding thermal insulation to the exterior walls of your home, including which type of thermal insulation to choose and how much this exterior insulation tends to cost.

Why should you opt for insulation for the exterior walls of your home?

Most heat likely escapes from your home via the roof, rather than via the exterior walls of the property. However, it’s a close comparison: while around 30% of heat is lost through the roof of the building, close to 25% of heat escapes through the external walls of the home.

So, if you’re looking to increase the energy efficiency of your home, you’ll need to install thermal insulation on your exterior walls to really make a difference to your use of heat energy at home.

What is home exterior wall insulation?

Exterior wall insulation is a process that installs insulation directly onto the external walls of the home (or any other type of building or property).

This type of external wall insulation makes a huge difference to heat levels and energy usage in the property. Exterior wall insulation is even more effective than other types of home insulation! This means that putting in insulation on your external walls can hugely increase your home energy efficiency and save you a significant amount of money on your heat bills.

In order to optimise your home energy efficiency, you might want to consider installing exterior cladding alongside exterior insulation. This will optimise your home heat usage and reduce your heat bills further.

The most effective method of exterior wall insulation

The best method of installing thermal insulation on the external walls of your home is to add the insulation material from the exterior of the building.

It’s key to remember that exterior wall insulation isn’t just about increasing heat levels in your home. External wall insulation is also vital for keeping your home cool in warmer weather, boosting the energy efficiency of air conditioning systems that you might have installed in your home or building.

So, which type of external wall insulation should you choose for your home, in order to gain the maximum benefits from this type of exterior insulation?

Adding insulation into the external walls of your home is key to increasing your home energy efficiency and bringing down your heat bills. When you’ve installed exterior wall insulation, it’s time to take your home energy efficiency up to the next level! By installing a Netatmo Smart Thermostat, you can remotely program and adjust your home heat levels from your smartphone or tablet, even while you’re away from the property. Easy to install, it’s a handy device to increase your heat management and home energy efficiency, effectively complementing exterior wall insulation on the property.

Which external wall insulation should you choose for your home?

Exterior wall insulation is primarily used to render your home more energy efficient, ensuring it holds in and makes better use of heat.

There are multiple options for exterior wall insulation for your home. You’re free to choose the insulation material that best suits the needs and style of your exterior walls and the building in general.

When you’re deciding on what material to use for your exterior wall insulation, these are multiple key insulation categories to bear in mind:

Mineral insulation, including glass wool or rock wool (these insulation materials offer good value for money in external wall insulation)
Synthetic insulation materials (most commonly cellular plastic such as polyurethane or extruded polystyrene)
Natural insulation materials produced from plant material, wood or animal material such as sheep’s wool, cork, hemp or feathers (these insulation materials are the most ecological, but are also the most expensive)

Make sure you choose the right exterior wall insulation for your home based on the design and dimensions of the building. Remember, putting in your external wall insulation from the exterior of the property is the most cost-efficient choice. Once your exterior wall insulation is in place, it’s time to think about putting in a Netatmo Smart Thermostat to boost your home energy efficiency further!

How much will it cost to put in exterior wall insulation for your home?

The price of exterior wall insulation depends on a variety of factors:

Size and design of the home: The larger your property, the larger its exterior walls! The dimensions and design of your property will affect the amount and type of exterior wall insulation that you need.
Age of the property: An older property may be more difficult to add insulation material to or require expert insight to advise on the best type of exterior wall insulation to use for the building.
Type of insulation material chosen to add to the exterior walls: You might prefer to use 100% natural insulation materials, or you might simply be looking for the exterior wall insulation option that will increase your energy efficiency at the best possible price.
Method of installation for your new insulation: Remember, putting in your external wall insulation from the exterior of the building is the most cost-effective option. This will effectively trap air, in order to help your home retain more heat.

As we’ve seen, some 25% of your home heat escapes through its external walls. This means that adding in effective external wall insulation can help you increase your home energy efficiency and reduce your home heat bills in one fell swoop. With so many insulation options out there for exterior walls, you’re sure to find the best option for your home!