Understanding air barriers

In order to develop effective enclosure design, to set achievable performance requirements and to verify compliance in construction, it is necessary to understand air barriers in so far their use is one of the key strategies in the control of airflow. Airflow must be controlled because it carries moisture that impacts a material 's long term performance and durability. It impacts on the spread of smoke, on the distribution of pollutants and on the location of microbial reservoirs and on thermal energy.