Building insulation materials is used depends on a wide variety of factors. Some insulation materials have health risks, some so significant the materials are no longer allowed to be used but remain in use in some older buildings such as asbestos fibers and urea. Factors affecting the type and amount of insulation to use in a building include: Considerations regarding building and climate: Often a combination of materials is used to achieve an optimum solution and there are products which combine different types of insulation into a single form. Spray foam is a type of insulation that is sprayed in place through a
Building insulation materials and batts for both thermal and acoustic insulation of housing and commercial buildings. Wool is capable of absorbing as much as 40% of its own weight in condensation while remaining dry to the touch. As wool absorbs moisture it heats up and therefore reduces the risk of condensation. It has the unique ability to absorb VOC gases such as formaldehyde, nitrogen dioxide, sulphur dioxide and lock them up permanently. Sheep's wool insulation has a long lifetime due to the natural crimp in the fibre, endurance testing has shown it has a life expectancy of over 100 years. Wood fiber insulation