Technological Innovation

What is BS EN 13779:2007+A1:2015

The standard BS EN 13779:2007+A1:2015, also known as the Indoor Environmental Input Parameters for Design and Assessment of Energy Performance of Buildings, plays a crucial role in establishing guidelines for measuring and evaluating the quality of indoor environments. This technical article aims to provide an of the significance and key aspects of BS EN 13779:2007+A1:2015.

Importance of BS EN 13779:2007+A1:2015

Indoor environmental quality (IEQ) has a direct impact on the well-being and productivity of occupants in buildings. BS EN 13779:2007+A1:2015 serves as a comprehensive set of criteria that addresses various factors contributing to IEQ, including temperature, humidity, air quality, lighting, and acoustics. By adhering to this standard, designers, engineers, and building owners can ensure optimal conditions for occupant comfort and health.

BS EN 13779:2007+A1:2015 helps to establish a common framework for evaluating energy performance in relation to indoor environments. It specifies requirements for ventilation systems, thermal insulation, air filtration, and noise control to enhance energy efficiency while maintaining acceptable IEQ standards. This not only benefits occupants but also contributes to sustainability goals by reducing energy consumption and greenhouse gas emissions.

Key Provisions of BS EN 13779:2007+A1:2015

The standard provides guidance on determining the necessary outdoor air flow rate based on building occupancy and activities. It establishes methods for calculating ventilation rates, considering factors such as pollutant concentration, outdoor air quality, and occupant behavior. These provisions help maintain a healthy indoor environment by preventing the buildup of pollutants and ensuring an adequate supply of fresh air.

BS EN 13779:2007+A1:2015 also defines performance categories for air filters used in ventilation systems. It outlines standards for filter efficiency and pressure drop, helping to improve indoor air quality by removing pollutants and allergens. The standard further addresses the importance of regular filter maintenance and replacement to ensure continuous effectiveness.


BS EN 13779:2007+A1:2015 is a critical standard that promotes the design and assessment of energy-efficient buildings while prioritizing occupant comfort and well-being. By following the guidelines outlined in this standard, professionals can create indoor environments that promote productivity, health, and sustainability. This ensures that buildings meet the highest standards of indoor environmental quality, enhancing the overall quality of life for occupants.



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