In the high-rise safety ecosystem of Kuala Lumpur and Selangor, the Staircase Air Supply Duct is the primary "oxygen line" for the building’s escape route. These specialized ducts are designed to transport high volumes of fresh air from pressurization fans to the stairwell, creating the life-saving pressure differential required to keep smoke out.
EKG M&E Sdn Bhd provides high-performance, fire-rated air supply ducting that strictly adheres to MS 1472 and BOMBA standards for staircase pressurization.
Distributing air throughout a vertical shaft requires a ducting system that can handle high static pressure while remaining completely airtight and fire-resistant.
Because air supply ducts often travel through multiple fire compartments to reach the stairwell, they must be protected against external fire.
Integrity & Insulation: We encase the galvanized steel (G.I.) ducts in BOMBA-approved fire-rated boards or high-density fire wraps. This ensures that if a fire occurs on a lower floor, the duct remains intact and the air inside remains cool as it travels to the floors above.
Stability: Reinforced hanger systems and seismic-rated supports ensure the duct does not buckle or collapse under the thermal stress of an emergency.
Multi-Point Injection: In high-rise buildings, air is not just dumped at the top. We install supply outlets at regular intervals (typically every 3 floors) to ensure a uniform pressure of 50 Pa throughout the entire height of the stairwell.
Opposed Blade Dampers (OBD): Every discharge point is fitted with adjustable dampers to balance the airflow. This prevents "over-pressurization" at the floors closest to the fan and "under-pressurization" at the furthest floors.
As a BOMBA-Compliant M&E Specialist, EKG ensures your air supply ducting supports long-term building efficiency:
TNB Energy Efficiency (Airtight Construction):
Poorly sealed ducts waste air into ceiling voids, forcing the fan to run harder. By ensuring a Class C Airtight installation, we allow your Variable Frequency Drive (VFD) to maintain required pressures at lower frequencies (Hz). This directly reduces your monthly TNB electricity bill during mandatory weekly testing.
EECA 2024 & Building Compliance:
Under the Energy Efficiency and Conservation Act (EECA) 2024, mechanical air transport must be optimized for minimal leakage. Our precision-sealed fire ducts protect your Building Energy Index (BEI) and ensure your facility is ready for green building certification.
Tenability & Occupant Safety:
By maintaining the correct air velocity (typically 1.0 m/s across open doors), the supply ducts ensure that the stairwell remains a "breathable sanctuary," providing the critical window of time needed for safe evacuation.
| Feature | Standard HVAC Ducting | EKG Staircase Air Supply Ducts |
| Pressure Rating | Low Static | High Static (Positive Pressure) |
| Airtightness Class | Class A / B | Class C / D (High Performance) |
| Fire Protection | None | Mandatory (FRL 120/120/120) |
| BOMBA Requirement | Not Required | Mandatory for Fire Certificate |
| Joint Sealing | Standard Silicone | Certified Intumescent Sealant |
Total 3D BIM Coordination: Stairwell shafts are often tight and shared with wet risers and electrical conduits. We utilize 3D modeling to route air supply ducts with zero "clashes," ensuring optimal placement for uniform air distribution.
Turnkey BOMBA Submission: We assist in the preparation of all technical drawings and conduct the mandatory Pressure Differential Test and Anemometer Airflow Traverse required for your Fire Certificate (FC).
Strategic Regional Support: Based in Kuala Lumpur, we provide professional air supply ducting audits and installations for Grade-A office towers, luxury condominiums, and hospitals across Malaysia.
Is your building's vertical escape route supported by a certified air supply network? Contact EKG M&E Sdn Bhd today for a professional staircase air supply duct audit and technical proposal.
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