What does 'combustion safety' refer to in relation to air barriers?

'Combustion safety' directly relates to ensuring the proper operation of combustion appliances. This is important because air barriers play a crucial role in controlling air movement within a building. If the airflow is not properly managed, it can lead to dangerous situations where combustion appliances, such as furnaces and water heaters, do not receive adequate air supply for combustion. Inadequate air supply can cause incomplete combustion, potentially leading to the production of harmful gases like carbon monoxide. Therefore, understanding and implementing effective air barrier strategies ensures that combustion appliances function safely and efficiently, thereby safeguarding occupants' health and enhancing overall building safety.

While other choices may touch on important aspects of building performance or energy efficiency, they do not specifically address the critical factors involved in the safe operation of combustion appliances, which is the primary focus of combustion safety.