Fire Protection System

Stairwell Pressurisation System

Competent Stairwell Pressurisation System in Malaysia

At Palcon, we are committed to providing top-notch customer service to our valued clients. Regardless of your project needs and requirements, our highly qualified engineers and technicians strive to ensure your stairwell pressurisation system is designed and installed to comply with all necessary fire safety regulations.

Stairwell Pressurisation System: What Is It and How Does It Work?

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

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.

Stairwell Pressurisation System Components in Malaysia

Though each building design may have different requirements, the following components are generally found in stairwell pressurisation systems:
  • Air Supply Fans
  • Exhaust Fans
  • Pressure Relief Dampers (barometric or motorised)
  • Differential Pressure Sensors
  • Ducts and Vents
  • Fire Protection Systems (fire alarm panels, fire alarms, smoke detectors, and more)

When Do You Need Stairwell Pressurisation?

In Malaysia, pressurised lift lobbies are necessary for buildings 45 metres in height, as stipulated in Section 197 of UBBL 1984. In addition, staircases must be pressurised if the building’s height is more than 45.75 metres, according to Section 202 of UBBL 1984.

Modern Stairwell Pressurisation System to Facilitate Evacuation

An effective stair pressurisation system serves as a pressure relief damper for your building’s staircase. It is highly important as it prevents smoke- and heat-filled stairwells, which are the main escape routes during fire emergencies for high-rise structures. Palcon provides excellent stairwell pressurisation services to secure escape routes and streamline evacuation.


Stairwell pressurisation systems are engineered to prevent smoke from entering the fire escape routes. They do so by pumping sufficient fresh air into the targeted area or route, thus increasing the air pressure and repelling any smoke from said area. This ensures occupants can safely evacuate the building without inhaling any lethal smoke fumes.

The fan of the stairwell pressurisation system does not need to be kept running as it would waste energy and increase building costs. Moreover, keeping the fan running continuously may result in over-pressurisation on the fire exit door, which prevents it from being opened.

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