Most people today spend the vast majority of their time indoors, making the quality of indoor environments essential to overall health and wellbeing. Yet many homes still face issues such as damp, mould, poor temperature control, and inadequate ventilation. These conditions can affect both physical and mental health, and climate change is intensifying challenges like overheating. Together, they highlight a widespread gap between what occupants need and what many existing buildings currently provide.

Building regulations are intended to ensure healthy, comfortable, and energy‑efficient homes, but past updates have often focused more on carbon reduction than on indoor conditions as a whole. While upcoming standards signal a more holistic approach, more progress is needed to truly balance net‑zero objectives with healthier living environments. Wood fibre insulation is one example of a solution that supports both goals by improving thermal comfort, managing moisture effectively, and contributing to better indoor air quality.