No, insulation issues are not just a matter of the long winter months!

To avoid suffocation during the summer season and its heat wave episodes, it is better not to reside in a thermal sieve.

In order to reduce your energy consumption related to heating but also to air conditioning and gain comfort in your interior all year round, properly insulating your home is essential.

Respectful of the environment, easy to install and efficient in all seasons, wood fibre, also called wood wool, has many advantages for owners.

An ecological material

Obtained from the defibration of resinous tree scraps (mainly pine, larch and spruce) or otherwise unexploited trees, wood fiber is part of biosourced plant insulation, such as cotton wool, cellulose wadding, cork and linen.

Delivered in bulk or compressed and molded in the form of panels of varying densities, the fibers do not contain any harmful additives (glues, etc.) and offer the advantages of a natural, fully recyclable product.

In order to further reduce the carbon footprint of wood wool, you can also opt for materials from French forests managed in an eco-responsible way.

A versatile insulator

If it is very appreciated for its low environmental impact, wood wool is also acclaimed for its multiple qualities.

Thanks to its high density and its thermal phase shift capacities, it helps to delay heat transfer in winter and to retain the coolness accumulated during the night in the summer season, thus bringing real added value to summer comfort. .

Sound insulation is not left out either, wood being an excellent natural noise absorber.

The wood fiber wall panels can indeed reduce outside sounds (road traffic, voices, etc.), while a wood fiber parquet underlay will help reduce impacts, such as footsteps.

In addition to its insulating properties, this material has hygroscopic properties and then acts as a humidity regulator by helping to evacuate water vapor and to make the walls "breathe", which is very appreciable especially in old buildings. .

Different formats for different needs

In order to adapt to various uses and spaces, wood fiber can come in several forms.

If you want to insulate lost attics, the wisest thing will be to turn to loose wood wool.

Less common than panels, it is installed by blowing.

Like wadding, loose wood wool is sensitive to compaction (10 to 20% depending on the manufacturer): it will therefore be necessary to bet on a thickness of at least 35 cm to benefit from sufficient thermal resistance.

For converted attics but also the interior insulation of walls, it is more likely to opt for flexible or semi-rigid wood fiber panels.

Denser than the loose version, they are preferably laid in two crossed layers fixed on a wooden frame and can be easily cut without releasing irritating substances.

Be careful, however, as wood fiber is flammable, care should be taken to select only fireproof products for the insulation of the attic, where fires can occur.

Our "HOME" file

Finally, for exterior insulation of roofs, facades and floors, we will bet on rigid wood wool panels, with very high density, in thick single layer.


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And the price ?

The only downside is that wood fiber is often more expensive than most other traditional materials.

Thus, to insulate attics, the budget will be on average 30% higher than that of cellulose wadding and will reach almost double that of glass wool.

However, as it is an ecological product from renewable sources, you can claim financial aid provided you call on an RGE-certified craftsman for its installation.

Ask a France Rénov adviser on 0 808 800 700 (non-surcharged number).

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