Vapor diffusion and film-free for a natural indoor climate.
Healthy indoor climate.
Building elements made of cross laminated timber are generally open to diffusion. This means that they allow the unhindered movement of water vapor through the components to the outside. This prevents moisture from condensing inside the building and promoting the growth of mold. Vapor diffusion is an essential aspect of building physics in cross laminated timber, as it ensures a permanently pleasant indoor climate.
When using solid wood, there is another effect that reinforces this advantage: the storage and release of room humidity. The natural material is able to absorb water from the air. When the relative humidity drops, the wood releases the absorbed water again, thus ensuring a constant room humidity. This contributes to a healthy and pleasant indoor climate.
Another advantage of cross laminated timber is that it has no negative effects on vapor diffusion, even if it is glued. The joints between the individual boards are so good that no moisture can penetrate. This eliminates the need for vapor barriers and wind brakes, making the indoor climate even more natural. This creates a real feel-good ambience that wood offers as a building material.
A film that hinders vapor diffusion would lead to a reduction in energy efficiency. This is because a film on the inside would hinder natural vapor diffusion. The result would be an unfavorable indoor climate and mold growth. It is therefore essential to use solid wood without foil.
Building physics for sustainability.
One possible solution for perfect insulation and vapor diffusion in cross-laminated timber construction is the use of special insulating materials made from natural materials. These fillers, such as wood fiber, hemp or flax, provide excellent insulation and are open to diffusion at the same time. This ensures a perfect indoor climate without compromising the natural character of the building.
In this article, we have looked at the advantages of vapor diffusion and the absence of foil in cross laminated timber construction. A diffusion-open construction method and the use of natural insulating materials provide a pleasant indoor climate without increasing energy consumption. In contrast, the use of foils would have a negative impact on the indoor climate and energy efficiency. Anyone who understands building physics in cross laminated timber can benefit from these advantages and create a healthy and sustainable indoor climate.
