About the RIAQ Project
RIAQ (Retrofitting for Improved Air Quality: promoting sustainable and healthy homes) is an Interreg Northern Periphery and Arctic project (2025–2028) supporting healthier, more sustainable building retrofits. With pilot studies in Finland, Ireland, Sweden, Norway, and Iceland, the project generates evidence on indoor air and hygrothermal performance before and after retrofits, and works closely with stakeholders to shape retrofit strategies that are practical, scalable, and people-focused