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Systematic insulation

Energy saving building means having a coordinated concept for insulating all parts of the building: exterior walls, windows, roofs, and the cellar ceiling. A pre-fabricated house takes a systematic approach into account for all of these components in the planning phase. Pre-fabricated house walls actually save valuable space: the space savings amount to about 7 square metres for a floor space of 100 square metres, or the surface area of a small room, if you prefer. And wood is a building material that provides best-of-breed heat insulation.

Better than state-of-the-art
Pre-fabricated wooden building is a particularly innovative approach that is continually under development. As early as the 80s, pre-fabricated houses complied with energy saving regulations that were not introduced until 20 years later. Today, the heat loss on the outer skin of the house must be at least 25 percent below the values permitted by energy saving regulations.

High performance insulation
The lower the heat conductivity of a building material, the better its insulating properties will be. Pre-fabricated houses are mainly made of wood, which insulates far better than stone or concrete. To achieve the same insulating characteristics as a 55 centimetre layer of wood, a full-brick wall would have to be three metres thick, according to the NRW Energy Agency.

Multiple-layered wall constructions
Pre-fabricated houses use wall constructions consisting of multiple layers. The insulating materials are built into the wall cavity, and do not need to be applied to the outside, which is the case with conventional houses. This means that a pre-fabricated house wall will provide far better heat insulation, and thus more energy saving potential than a conventional brick-built of the same thickness. And this also means that the temperature inside.

Ecological insulating materials
Rock wool is the most common insulating material today, simply because it is the cheapest. However, renewable raw materials like wood fibres, flax or sheep´s wool are becoming increasingly popular as they guarantee a healthy indoor atmosphere. Ecological insulating materials also have favourable characteristics with respect to building technology.