Fire Safety: Understanding the Use of Combustible Outlet Boxes

Attention builders, contractors, and designers! If you're working with combustible outlet boxes in fire-rated assemblies, you need to pay close attention to these critical regulations.

Key Regulations You Must Know

According to the updated NBC2023 (Alberta Edition) Building Code, using combustible (plastic) outlet boxes in fire separations comes with specific requirements. All combustible boxes must include a firestop during installation to ensure safety in fire-rated assemblies. This means that anyone involved in construction must understand how to correctly implement firestopping methods.

Penetration Requirements for Outlet Boxes

Outlet boxes are allowed to penetrate the membranes of fire-rated assemblies as long as they are properly sealed. This sealing must be at a level where the firestop achieves an FT rating equal to or greater than the fire-resistance rating of the fire separation itself. This stringent requirement ensures that your installations meet safety standards.

Specific Conditions for Combustible Outlet Boxes

Interestingly, there are exceptions for combustible outlet boxes penetrating fire separations. They won’t need to conform to normal regulations if: 1. They're enclosed within a fire block material not exceeding 0.3 m². 2. They’re surrounded by non-combustible insulation that meets specific weight criteria.

Don’t Overlook Fire Stopping Training!

For those who want to ensure compliance, consider participating in fire stopping training seminars. This is crucial to keep updated on the latest safety measures and regulations.

Final Compliance Check

Before installation, make sure to submit your proposed fire stop for review. This ensures you remain compliant with safety regulations and provides peace of mind for you and your clients.

Stay Safe and Compliant!

Understanding and implementing these guidelines is vital for the safety of any building project. Always prioritize fire safety, and ensure that you're using approved materials to protect lives and property.