Fire Protection System
Stairwell Pressurisation System
Competent Stairwell Pressurisation System in Malaysia
The stairwell pressurisation system is a mechanical ventilation system that consists of a fan with an electric motor mounted in an isolated compartment. The outside air is captured through a shutter with a particle filter.
The excess air is released through manual and automatic dampers properly calculated and installed in suitable locations. It maintains a secure environment in refuge areas and means of egress during the time required for evacuation.
Importance of Stairwell Pressurisation System
- Helps create barriers to help control smoke movement and redirection
- Reduces smoke infiltration
- Lessens property damage
- Provides a safer escape route
Stairwells should be fitted with specialised stairwell pressurisation systems or pressurisation fans to ensure a stairwell’s pressure is greater than the interior building’s. The higher pressure in the stairwell “pushes” the smoke back into the less pressurised hallway. Thus, ensuring that the escape route is free of smoke and allowing effective combat against fires.