How can you effectively insulate your attic space for better thermal comfort?

Insulating your attic space is one of the priority works to be carried out to improve your thermal comfort. Be careful however, a craftsman will not use the same techniques depending on the structure of your house.

Why insulate the attic space as a priority?

In a house built before the year 2000, heat losses are numerous and a good insulation is often necessary to ensure a better living comfort in the dwelling. If your budget is quite limited and you wish to make sufficient and immediate energy savings, it is advisable to insulate the attic space as a priority because most heat loss occurs through the roof and attic space.

A good insulation of the house has immediate advantages on the comfort of life. By preventing heat from escaping from the dwelling, heating equipment is allowed to operate much more efficiently on a daily basis. By also investing in suitable equipment, you can save even more energy.

Depending on the structure of your attic space, insulation techniques may be different but still effective. You can find out more on sites, especially if you want to finance your work to make it more profitable in the short term. There are many solutions depending on your situation.

Insulation of the lost attic space

How do you insulate attics when you have lost attics? The term “lost attic” refers to a room that is very difficult to fit out unless substantial work is done on the structure itself. For example, a farmhouse structure can be an obstacle to the creation of a new room under the roof, as well as a ceiling height that is too low, when the regulations require a minimum height of 1 m80.

The advantage of this configuration is the simplicity of implementation. Insulating lost attics requires only a few hours and few tools, making it the cheapest insulation technique for attics. If your room is difficult to access, you will often be offered to blow it out. In this case, a craftsman uses flake insulation to be spread throughout the room to a thickness of about 30 centimetres. This is the least time-consuming and cheapest technique to use.

If you still wish to have access to your attic space, it is recommended to place the insulation directly under the roof structure. This is known as crawl space insulation. A little longer and more expensive, it also requires the installation of a vapour barrier against humidity.

Good insulation of attic space

In a house, we talk about converted attic space when it is possible to create a new room suitable for residential use. The room meets all the housing standards, but it must first be well insulated. Several techniques can be applied depending on your budget and the aesthetic look you want in the room.

As in a lost attic, you can opt for insulation under crawl space provided that a double layer of insulation is applied. Here too, a vapour barrier must be added to the insulation system to prevent moisture from infiltrating and destroying the structure in the long term. This method allows for less expense but requires the loss of some living space in the room under the roof.

If you want to keep the aesthetic qualities of your structure while keeping your entire surface, opt for sarking insulation. This method is rarely used because it is invasive and is generally recommended if a roof renovation is also necessary. To do a sarking, the craftsmen must remove the roof covering, place the insulation in the frame and replace a cover. Be careful, this technique costs more than a hundred euros per square metre.

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