National Building Code Standards for Group F Division 2 Industrial Buildings

Understanding the National Building Code of Canada (NBC) is critical for any industrial project. If you are planning a medium-hazard industrial facility, empcontracting.ca Inc. your construction contractor in London, Ontario, provides the expertise needed to ensure compliance with Section 3.2.2.80 and 3.2.2.81.

Group F, Division 2: Medium-Hazard Industrial Requirements

Buildings classified as Group F, Division 2 (Medium-Hazard Industrial) that are up to 2 storeys in height must follow strict fire safety and structural guidelines. According to Sentence 3.2.2.80, these structures are permitted to be of combustible or non-combustible construction, provided specific fire-resistance ratings are met.

Fire-Resistance Rating Requirements

To maintain safety standards, the following components must adhere to specific fire-resistance ratings:

Floor Assemblies: Must act as fire separations with a fire-resistance rating of not less than 45 minutes.
Mezzanines: If constructed of combustible materials, they require a 45-minute fire-resistance rating.
Loadbearing Elements: Walls, columns, and arches supporting rated assemblies must have a fire-resistance rating of at least 45 minutes or be of non-combustible construction.

Maximum Building Area and Storey Limits

The allowable building area for unsprinklered Group F, Division 2 buildings is strictly regulated based on the number of storeys and street access. As your trusted partner, empcontracting.ca Inc. your construction contractor in London, Ontario, helps navigate these limits:

Table 3.2.2.80: Maximum Building Area (m²)

1 Storey: Facing 1 street (1,000 m²), 2 streets (1,250 m²), or 3 streets (1,500 m²).
2 Storeys: Facing 1 street (600 m²), 2 streets (750 m²), or 3 streets (900 m²).

Sprinklered Building Advantages (Section 3.2.2.81)

Under Section 3.2.2.81, installing a sprinkler system significantly expands the permissible building area for medium-hazard industrial sites. For a 1-storey building, the area can increase up to 4,500 m², while a 2-storey building is permitted up to 1,800 m².

Structural Compliance in Sprinklered Buildings

Even with sprinklers, structural integrity remains a priority. Floor assemblies and loadbearing supports must still maintain a fire-resistance rating of at least 45 minutes if of combustible construction. For expert implementation of these complex codes, trust empcontracting.ca Inc. your construction contractor in London, Ontario to deliver a safe, code-compliant industrial build.