What are the advantages of PIR boards in roof insulation?
PIR board is an advanced insulation material that has been gaining popularity in recent years. It is a plastic material with high mechanical strength and low thermal conductivity. Due to these characteristics, PIR boards are an excellent solution for roof insulation. Unlike mineral wool, PIR boards have a significantly lower density, which limits their impact on the load of the roof structure.
The light weight is a definite advantage of PIR boards, which allows them to be used even for light-ceilinged structures. Futhermore, PIR boards show excellent thermal properties with a relatively small increase in insulation thickness. As a result, it is possible to achieve adequate insulation of the roof, without burdening it with additional weight.
PIR boards versus mineral wool - a comparison
For years, mineral wool was the most popular material used for roof insulation in Poland. It offers numerous advantages, including sound-dampening capabilities and excellent vapor permeability. However, mineral wool also has its drawbacks, particularly regarding its impact on the load of the roof structure.
Many people are concerned that the use of mineral wool can lead to overloading of the roof structure due to its weight. Meanwhile, PIR boards, with equally high levels of thermal insulation, have a much lower mass. This indicates that their effect on the roof load is considerably reduced.
Additionally, PIR boards are more resistant to moisture than mineral wool, which translates into maintaining consistent insulation performance. Moisture resistance is particularly important for the roof, where the risk of damp insulation is relatively high.