Ireland’s ambitious energy retrofit program is gaining attention, especially in light of a recent study examining the impact of deep energy renovations on indoor air quality in social housing. Conducted by Ann Marie Coggins from the School of Natural Sciences & Ryan Institute at the University of Galway, this research provides critical insights into how energy efficiency improvements can enhance living conditions while also presenting commercial opportunities for the construction sector.
The study, published in the journal ‘Indoor Environments’, highlights that Ireland has a significantly high proportion of energy-inefficient buildings compared to other European nations. With the goal of transforming these structures, the research focused on deep energy renovations, specifically the replacement of heating systems and upgrades to the building envelope. Coggins and her team utilized a mixed methods approach, measuring indoor air quality and conducting thermal comfort surveys among occupants.
The findings reveal a complex picture. While thermal comfort improved post-retrofit, with increased satisfaction regarding heating systems, some concerning trends emerged. Higher concentrations of carbon dioxide (CO2) and PM2.5 particulate matter were detected in both living areas and bedrooms after the renovations. “This indicates that while we are improving energy efficiency, we must not overlook the importance of ventilation,” Coggins noted. The study found that occupant behaviors, such as blocking wall vents and smoking indoors, significantly influenced ventilation quality.
The implications for the construction industry are substantial. As the push for energy-efficient buildings continues, the need for integrated solutions that prioritize indoor air quality is becoming increasingly evident. Homes equipped with mechanical ventilation systems demonstrated better air quality, suggesting that construction professionals should consider these systems as essential components of energy retrofits. Coggins emphasized, “Tailored communications to occupants about the critical role of ventilation can optimize the positive impacts of these retrofits on indoor environmental quality.”
Moreover, the research underscores the importance of addressing occupant behavior in retrofit strategies. The presence of visible condensation or mold in half of the surveyed homes points to a pressing need for education and engagement with residents. By fostering a better understanding of how to maintain good indoor air quality, the construction sector can enhance the effectiveness of energy retrofits.
As Ireland forges ahead with its energy retrofit initiatives, this study serves as a reminder that improving energy efficiency must go hand-in-hand with ensuring healthy indoor environments. The findings from Coggins and her colleagues could shape future policies and practices in the construction industry, encouraging a holistic approach that prioritizes occupant health alongside energy savings. With the construction sector poised for growth, integrating these insights could lead to more sustainable, healthier living spaces for all.
For more information on this research, visit the University of Galway’s website at lead_author_affiliation.
