Efficient & sustainable<br />bio-based insulation

Efficient & sustainable
bio-based insulation

Home Efficient insulation Thermal comfort

Keys aspect of good thermal insulation

Keys aspect of good thermal insulation


The efficiency of the insulating material

Insulation provides 90% of the insulation of the wall. It helps reduce heat loss and avoids cold walls, which are a source of discomfort and condensation.

Choosing insulation with low thermal conductivity (λ = 0.040) and thickness adapted to the desired level of insulation. (e.g.: R = 5 for 200 mm of insulation with λ = 0.040)


The air-tightness of the frame

Seepage of air from the outside is another major source of heat loss and can reduce the efficiency of your insulation system (condensation).

Installing a roof-boarding screen (or rain protection) that is pervious to water vapour on the outside (cold) and a vapour barrier such as Biofib‘control on the inside (hot).


Absence of thermal bridge

Breaks of insulation (joints between walls, rafters, runners, etc.) are some of the "cold" points through which heat can propagate.

To guarantee the continuity of the insulation by carefully sealing the joints of walls / floors / inner walls. To favour insulation in a staggered double layer.


Thermal inertia of the building

The greater the capacity of the walls to store heat, the slower they heat and cool.

To be careful when choosing the structure (new buildings) and the density of the insulating materials.

U - Thermal transmission coefficient (W/m2.K)

Ease with which thermal energy passes through the wall. It is calculated by adding the inverse of the thermal resistance of the materials that make up the wall and the surface resistance. The lower the value of U, the greater the insulating properties of the wall.

Keys aspect of good thermal insulation

R - Thermal resistance (m2.K/W)

Ability of a material to stop the transfer of energy. It is proportional to the thickness (e) and the thermal conductivity (λ), such that: R = e / λ. The higher the value of R, the greater the insulating properties of the material.

λ - Thermal conductivity (W/m.K)

Heat flow crossing a material thickness of 1 m for a temperature difference of 1 ºC between the two sides. The lower the value of λ, the greater the insulating properties of the material.

Energetic efficiency

A ≤ 50
B 51 - 90
C 91 - 150
D 151 - 230
E 231 - 330
F 331 - 450
G > 451


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