Lämpösiltojen

Lämpösiltojen, or thermal bridges, are areas in a building's envelope where heat can flow more easily than in surrounding areas. They are essentially points of higher thermal conductivity that create a pathway for heat transfer, leading to increased energy loss in winter and heat gain in summer.

Common causes of thermal bridges include structural elements like concrete beams, steel columns, or wooden studs that penetrate the insulation layer. Gaps or discontinuities in the insulation, such as poorly fitted insulation boards or unsealed joints, can also act as thermal bridges. Poorly designed or installed window and door frames are frequent culprits. Even small details like fasteners, anchors, or penetrations for pipes and electrical wiring can create localized thermal bridges.

The consequences of thermal bridges extend beyond increased energy consumption. They can lead to colder surface temperatures on the interior of the building, which can result in condensation. This moisture can then foster the growth of mold and mildew, potentially affecting indoor air quality and damaging building materials. Identifying and mitigating thermal bridges through proper design, material selection, and meticulous construction practices is crucial for improving a building's energy efficiency, thermal comfort, and overall durability. Techniques like continuous insulation, thermal breaks, and careful detailing at junctions are effective strategies for reducing their impact.