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Modeling Thermal Bridging at Interface Conditions: Analysis of Solutions for Reducing Thermal Bridges Effects on Building Energy Consumption

C. Balocco1 E. Marmonti1
1Dipartimento di Energetica, Università di Firenze, Firenze, Italy

3D geometry for case 1's thermal analysis.

In Europe considerable building activity can be expected over the coming decades; Net Zero Energy Buildings refers to a building with minimal power, until maximum 15 kW/m^2. In both cases this requires very well insulated buildings with minimal thermal bridges. Concrete balconies, that extend the floor slab through the building envelope, are a common example of thermal bridging, where structural steel highlights heat conduction. Our work investigates acoustic and energy performances of thermal bridges belonging to typical example of existing buildings. Simulations analyze the incidence of thermal bridges on the global heat exchange and sound transmission. The aim of our work is to provide an integrated approach for understanding thermo-physical and acoustic phenomena that can be useful for energy efficiency.

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