What is the minimum headroom clearance inside a building according to PD 1096?

The minimum headroom clearance inside a building according to PD 1096, also known as the National Building Code of the Philippines, is set at 2.1 meters. This requirement is established to ensure safety and functionality within building interiors, allowing adequate space for occupants to move comfortably without the risk of bumping their heads against ceilings or fixtures.

A clearance of 2.1 meters is deemed sufficient to accommodate the majority of individuals, including those who may be standing or moving about in the space. It also underscores the importance of designing spaces that are not just structurally sound but also practical for human use. The standards in PD 1096 reflect an understanding of ergonomic needs and safety regulations that promote the well-being of building occupants.

The other choices either fall short of or exceed this minimum requirement. Maintaining a headroom clearance of 2.1 meters aligns with regulatory standards, ensuring that buildings are accessible and comfortable for all users, which is a critical factor in building design and compliance.