Comfort monitoring for CEN standard EN15251 linked to EPBD

This website offers information and compliance guidelines for building professionals and developers on how to interpret the Standard and ensure compliance. It will assist designers and policymakers to take advantage of EN15251 as a practical standard.

The European standard EN15251 was recently adopted to define acceptable indoor temperatures and light levels as the basis for energy calculation. The provision of comfort is a key concern for building designers. Mechanical cooling is energy intensive. Naturally ventilated (NV) buildings with fewer energy costs cannot control indoor conditions closely. Formally standards have used comfort models which favour close environmental control so NV buildings have been looked on as second-rate. EN15251 allows NV buildings more freedom for environmental variation in line with the findings of comfort theory. This project seeks to use existing information from field surveys to test the limits set by EN15251 for temperature and lighting and to validate its recommendations using existing data and building simulations.