Hengitettävyys

Hengitettävyys refers to the ability of a material to allow air or vapor to pass through it. This property is crucial in various applications, particularly in textiles and building materials. In textiles, breathability is important for comfort, allowing moisture vapor generated by the body to escape and preventing a clammy feeling. Materials with high breathability are often preferred for sportswear and outdoor clothing.

In the context of building materials, hengitettävyys relates to how well walls and structures can manage moisture. A breathable wall system allows water vapor to escape from the interior of a building, preventing condensation and potential damage like mold growth. This is particularly relevant in construction methods that aim for energy efficiency and healthy indoor environments. The degree of hengitettävyys is often measured by specific tests that quantify the rate of air or vapor transmission through a material. Different applications require varying levels of this property, and material selection is often guided by these specific needs. Factors like pore size, material composition, and structure influence a material's hengitettävyys.