What construction aspect is covered under Part 9?

Part 9 of the Ontario Building Code specifically addresses the construction requirements for single-family homes and small buildings. This section is designed for structures that are typically less complex and have a lower risk profile compared to larger or more specialized buildings. The codes outlined in this part include provisions for safety, structural integrity, and usability that are easily manageable for smaller scale residential projects.

In contrast, the other options involve types of constructions that are generally covered under different sections within the Building Code. Highrise buildings, unlike single-family homes, present unique challenges related to height, occupancy, and structural systems that require separate considerations typically found in Parts 3 and other applicable sections. Similarly, commercial properties and warehouses often fall under different categories that account for larger scale design, occupancy requirements, and fire safety regulations. Underground structures, including basements, have their own set of codes primarily found in specialized parts due to the unique challenges associated with subterranean construction. This differentiation in coverage ensures that each type of building adheres to the specific safety, structural, and health standards appropriate to their complexities.