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Energy performance, thermal insulation, EPB and Gablok insulated wooden blocks

Details on insulated blocks

The EPB is studied on a case-by-case basis, depending on each building site. The energy performance of buildings (EPB) is evaluated based on a number of precise criteria whose value differs depending on the type of dwelling. These criteria correspond to the characteristics that define a dwelling.

For instance: the different types of insulation (roof, exterior walls, interior walls, …) used, the type of frame and window surfaces, the orientation of the house or the heating system.

In a self-build project using Gablok, as for any other building, it is impossible to give a precise value of the EPB without knowing the other data (heating system, ventilation system, degree of insulation of the windows and so on).

Nevertheless, we can assert that the thermal conductivity (“U” value) of a Gablok wall is U=0.15 w/m²k. Our insulated wooden blocks will be able to meet 2021 EPB requirements.

Today, the thermal conductivity required by the EPB for a wall is U=0.24 w/m²k

The thermal conductivity of a passive house wall is U=0.10 w/m²k.

Note that it is always possible to increase the insulating value of our Gablok walls by applying additional external insulation.