Concern & action: Thermal Bridges

Thermal bridges occur when an area is less insulated than its surroundings. The higher thermal conductivity of the bridging element (or the multi-dimensional geometry of the detail) leads to increased heat loss and lower internal surface temperatures on the bridging area which can result in surface condensation and/or mould growth

Suggested actions

Before Implementation

Monitor internal surface conditions at potential bridges prior to refurbishment. Model vulnerable areas using heat transfer analysis software informed by in situ data.

During implementation

Specify and clearly communicate details for key thermal bridges (e.g. windows, wall to floor junction, wall to roof junction) that minimise heat transfer at bridge position.

After implementation

Continuous monitoring of conditions post re-furbishment and reporting of results. Response and mitigation strategy in place if adverse conditions arise.