When building a house, we expect the insulation properties to remain consistent for many years. Traditional insulation materials, such as mineral wool, tend to slip over time and create thermal bridges. In addition, this material is a friendly environment for rodents, which readily nest in wool further degrading it. Crossin polyurethane insulation foams permanently bond to the substrate during application and are resistant to slipping and movement of the material over the years, without losing their insulating properties. These are significant advantages of the material and application technology, since the possible removal of defects associated with displacement and degradation of the insulating material is a technically difficult, time-consuming and quite expensive process.