A major issue when designing foundations is frost heave. Frost heave cracks foundations and damages the whole building structure. The right insulation, however, can prevent frost heave and other problems. Stone wool not only stops frost heave and moisture problems, but results in lower heating costs and more comfortable below-grade rooms.
The external walls of a building function as a climate shield. They protect against cold, precipitation, strong winds, noise and fire. A good external wall structure, with the right insulation solution, is a prerequisite for a healthy and pleasant indoor climate.