What is the primary feature of Type 2 construction?

The primary feature of Type 2 construction is its use of materials that have fire-resistant ratings. This construction type often includes non-combustible materials such as concrete, masonry, and steel, which are designed to withstand fire exposure for a certain period. The fire-resistant characteristics help to not only slow the spread of fire but also provide additional time for occupants to evacuate and for firefighters to respond effectively. The focus on fire resistance in this type of construction aligns with building codes aimed at protecting life and property during a fire event.

While other features like the use of wood or heavy-timber structures are associated with different construction types, Type 2 specifically emphasizes materials that are non-combustible or have fire-resistance properties. Therefore, the fire-resistant ratings on building materials stand out as the most defining characteristic.