Fire separation is a continuous protective boundary between dwelling units and other affected spaces. Its performance depends on the complete assembly, including openings and penetrations.
Map the Boundary
Identify every wall, ceiling, floor, stair and shared area separating the additional unit from the principal dwelling.
Use the Approved Assembly
Drywall type, layer count, framing, fasteners, joints and supporting details must follow the reviewed design. One product does not establish the performance of the whole system.
Treat Every Opening
- Doors and frames
- Ducts and grilles
- Pipes and cables
- Electrical boxes and recessed fixtures
- Access panels and service chases
- Mechanical room openings
Coordinate Alarm Systems
Smoke and carbon monoxide protection must match the approved building and unit arrangement. Do not remove or disable devices after occupancy.
Keep Fire Doors Operational
Doors that are required to close and latch need regular maintenance. Storage and wedges can defeat their purpose.
Add Sound Control Carefully
Insulation, resilient channels and acoustic sealants can improve privacy, but they must remain compatible with the required fire assembly and service access.
Request a basement assessment
Share the current condition, intended use and the type of help you need.