Office Purge Ventilation
All offices must also have purge ventilation designed to provide at least 4 air changes per hour. Purge ventilation must be directed outside and not recirculated to any other part of the building.
Alongside the minimum requirements above, an office ventilation design project must also take into consideration the following:
Noise: including ensuring mechanical systems are sized so fans do not need to operate in a high mode when providing standard background ventilation.
Controls: providing controls to allow ventilation rates in each room to be adjusted and that in rooms without windows, extract ventilation operates for at least 15 minutes after an occupant has left.
Recirculation: ensuring an adequate rate of outdoor air can be achieved in all areas of the building without recirculation unless the system features specific filtering capabilities, such as HEPA filters.
External Pollution: this applies to buildings located near to sources of external pollution such as a main road, and requires considered design of ventilation intakes and exhausts.
As you can see from this basic example, ventilation design is a complicated process. It takes a lot of expertise to ensure Part F compliance, and that only escalates as the requirements of a project become more complex.
At Loughborough Air Conditioning, we have years of experience in the design, installation and commissioning of effective ventilation systems, and are able to self certify work under Building Regulations Part F as part of the BESCA Competent Person Scheme.