kylmäsuojatut

Kylmäsuojatut is a Finnish term that translates to "cold-protected" or "frost-protected" in English. It refers to a method of construction and insulation designed to prevent frost heave and maintain stable ground temperatures, particularly in regions with significant seasonal temperature fluctuations and freezing conditions. This technique is commonly employed in building foundations, roads, and other infrastructure projects where the ground is susceptible to frost damage.

The primary goal of kylmäsuojatut is to insulate the ground beneath a structure from freezing temperatures. This is typically achieved by using layers of insulating materials. Common insulating materials include expanded polystyrene (EPS) or extruded polystyrene (XPS) boards. These materials are placed around the foundation or beneath the surface layer to create a thermal barrier. The insulation can be installed vertically around foundation walls, horizontally beneath slabs, or in a combination of both.

The effectiveness of kylmäsuojatut lies in its ability to prevent the ingress of cold air and the deep penetration of frost into the soil. By keeping the ground temperature above freezing, it prevents the expansion of water in the soil, which is the root cause of frost heave. Frost heave can exert significant upward pressure on structures, leading to cracking, settlement, and structural damage. Kylmäsuojatut mitigates this risk by ensuring the ground remains stable.

The application of kylmäsuojatut is particularly important in areas with silty or clayey soils, which are more prone to frost heave than granular soils. Proper design and installation are crucial for the success of this method. This includes specifying the correct type and thickness of insulation, ensuring continuous insulation coverage, and considering factors like drainage and the depth of the frost line in the specific region.