Which type of construction is classified as "Ordinary"?

Ordinary construction, classified as Type 3, is characterized by exterior walls that are made of non-combustible materials while the interior elements may consist of combustible materials. This type of construction typically includes structures that have masonry or concrete walls, often seen in commercial and residential buildings, and is distinguished by its mixed-use of materials. The roof and floors may be wood or other combustible elements, which can contribute to fire spread if not properly managed.

Type 3 buildings are particularly significant in the context of fire service operations because firefighters need to understand the construction methods to anticipate how a fire may behave and the structural integrity during firefighting efforts. The use of combustible materials inside these buildings can present unique challenges and potential hazards, influencing fire dynamics and tactics required to effectively combat a blaze. Understanding this classification is crucial for assessing risks during emergencies.