What is Central Extract (MEV)?
Building Regulation Requirements ADF:2010
The Building Regulation ADF: 2010 set out the airflow requirements for System 3 MEV Whole House Extract Ventilation in the table below (using the continuous extract airflow rates)
In order to calculate the airflow rates for a particular dwelling and specify a unit you need to know the following information:
1. Design Criteria
2. Floor Area of Dwelling
3. No of wet rooms
4. No of occupants