Thermal bridges are areas in the building envelope where there is increased heat flow due to a break in thermal insulation or a difference in material conductivity. This leads to localised heat loss, cooling of internal surfaces and the risk of condensation and mould growth.
Bridges can occur:
- point-to-point (e.g. at anchors, steel connectors)
- linearly (e.g. along wall-roof joints, rim-to-ceiling joints, window reveals)
- surface (throughout the construction zones).
Frame housesare areas where careful design and execution of the insulation is particularly important. So that bridges are avoided at studs, lintels, floor joints and when installing services.
The elimination of thermal bridges allows reduce heat lossThis can increase a building's energy efficiency and improve user comfort. Modern prefabricated construction uses appropriate materials and installation techniques to minimise the occurrence of this disadvantage.
