ventilation

The context of climate change and the need of saving energy has required rethinking the ventilation and the air change rates in buildings, because of their increased impact on thermal losses. Indeed, ventilation plays a crucial role estimated around 30-50% of the energy delivered to buildings, becoming an even higher part in high-efficient buildings.  

Climate change has exacerbated the summertime overheating in buildings, necessitating resilient adaptation strategies. Based on our previous work, which introduced a Thermal Resilience Index (TRI) ranging from Class F to Class A+ using a concept of resilient trapezoid framework, this study explores unit-level retrofit strategies for high-rise long-term care buildings.

Building ventilation and retrofitting strategies for homes can bring multiple benefits in the context of achieving Sustainable Development Goals (SDGs) by reducing carbon emissions in the building sector. However, current SDG approaches are fragmented, narrowly focusing on specific areas related to each goal, which now requires an integrated approach.

A significant challenge lies in decarbonising existing residential stock to meet higher energy performance standards, necessitating increased energy retrofit activity. Despite the importance of energy retrofits, challenges arise in maintaining indoor environmental quality. While positive air quality and health benefits have been reported through targeted energy-retrofit activities, there are also numerous cases where indoor pollutant concentrations increase post-retrofit.

The Book of Proceedings of the 43^rd AIVC - 11^th TightVent - 9^th venticool Conference: "Ventilation, IEQ and health in sustainable buildings" held in Copenhagen, Denmark on 4-5 October 2023.

The Presentations at the 43^rd AIVC - 11^th TightVent - 9^th venticool Conference: "Ventilation, IEQ and health in sustainable buildings" held in Copenhagen, Denmark on 4-5 October 2023.