Ceiling Insulation: The Complete Guide
When considering its sound and thermal insulation, we think especially of the attic and the walls. However, a well-insulated ceiling plays a significant role in the energy performance of your home and for your comfort.
Why insulate your ceiling?
Insulating a ceiling is essential when it is in direct contact with lost and poorly insulated attics. The attic is in fact the main heat loss zone for the house, and an important warming zone in summer. You can not go into insulating your attic: ceiling insulation will be an excellent alternative to improve the energy performance of your home, and limit energy consumption .
In addition, hearing footsteps from people on the upper floor is not always easy to hear: soundproofing your ceiling may be the best solution.
How to properly insulate your ceiling?
To be performed alone or with the intervention of a professional, you can use the false ceiling technique.
With excellent thermal and sound efficiency, the false ceiling makes it possible to conceal the irregularities of the existing ceiling. It lowers the height of the room, it reduces the volume to be heated.
It also knows how to be a very aesthetic choice.
It consists of covering the original ceiling, either with a thick canvas stretched between the walls, or with rigid plates suspended by a structure. The plates or slabs can be made of wood such as paneling, PVC, plaster - BA13-, or even terracotta or ceramic. The insulation is installed between the two ceilings, usually in rolls. Mineral wools, sheep's wool, synthetic foams… without having a lot of thickness, these materials are good insulators.
The advantage of this method is that it can conceal a network of electric cables, particularly for integrated lighting.
In sheets or rolls, the insulation can also be attached directly to the ceiling.
If the ceiling is that of the attic, in the slope under the roof, you can use, in addition to other materials, loose insulation, such as cellulose wadding: in traditional frame houses, it is blown into bags installed between the rafters. Everything is then covered with plasterboards, for a nice finish.
And to adapt to any shape, to all architectures, we also use polyurethane foam.