eristelevy

An eristelevy, a Finnish term that translates to "insulating board" or "insulation board," refers to a building material used for thermal insulation. These boards are typically made from various materials, including mineral wool, polystyrene foam (EPS or XPS), polyurethane foam, wood fiber, or cork. The primary function of an eristelevy is to reduce heat transfer, thereby improving the energy efficiency of buildings and contributing to a more comfortable indoor environment.

Eristelevyt are employed in a wide range of construction applications. They can be used in walls, roofs, floors, and foundations. In wall construction, they might be installed on the exterior, interior, or within the cavity. For roofs, they are often placed above or below the rafters, and in floors, they can be laid directly on the subfloor or within the joist system. The specific type of eristelevy chosen depends on the application, required insulation performance (R-value), moisture resistance needs, and budget.

The installation of eristelevy requires careful attention to detail to ensure continuity of the insulation layer and prevent thermal bridging, which is a pathway for heat to escape. Proper sealing and vapor barriers are often incorporated to manage moisture and maintain the effectiveness of the insulation. The use of eristelevy is a common practice in modern construction, particularly in regions with significant temperature fluctuations, to minimize heating and cooling costs and reduce the environmental impact of buildings.