PHOTOCATALYTIC SELF – CLEANING FACADES IN ACHITECTURAL DESIGN

Sustainable and affordable technologies are an important aspect of environment and energy efficiency. Environmental pollution in urban areas is one of the causes for poor air quality. Gaseous emissions from daily traffic are continuously increasing often exceeding the allowable concentration in the atmosphere. The development of self cleaning materials- photocatalytic building materials- particularly when applied to facades, can contribute to providing the clean the air and to improvement of sustainability levels. They represents one of the most promising solutions for reducing air pollutant concentrations in urban areas, proving to be really effective and showing a real eco-sustainable value. The paper explains the mechanism of self-cleaning of fa？ades, their types in architectural design and the importance of their application