lämpötiiviit

Lämpötiiviit is a Finnish term that translates to "heat-tight" or "thermally sealed." It is primarily used in the context of construction and building materials to describe elements that effectively prevent the passage of heat. This concept is crucial for energy efficiency in buildings, as it helps to maintain a comfortable indoor temperature and reduce the need for heating and cooling.

Materials or assemblies that are lämpötiiviit minimize thermal bridging, which is a phenomenon where heat flows more readily through certain parts of a building envelope. Common examples include well-insulated walls, roofs, and floors, as well as high-performance windows and doors with multiple panes and specialized coatings. The goal is to create a continuous barrier that resists heat transfer by conduction, convection, and radiation.

Achieving lämpötiiviit construction involves careful selection of materials, proper installation techniques, and attention to detail at junctions and connections. Vapor barriers and air barriers also play a significant role in enhancing thermal performance by controlling moisture and air movement, which can otherwise compromise insulation effectiveness. The concept is closely related to the principles of passive house design and other energy-efficient building standards.