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High-Rise Staircase Ducting by EKG M&E Sdn Bhd

In the vertical architecture of Kuala Lumpur and Selangor, the high-rise staircase is more than just a means of egress—it is a pressurized life-safety conduit. High-Rise Staircase Ducting refers to the specialized mechanical network that delivers fresh air into escape stairwells to create a "pressure shield" against toxic smoke.

EKG M&E Sdn Bhd specializes in the engineering and installation of these systems, ensuring they remain 100% operational under the extreme conditions of a fire to meet BOMBA standards and the Uniform Building By-Laws (UBBL).

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The Engineering of Vertical Safety

Standard ventilation ducting is not designed for the high-static pressures or the fire-integrity requirements of a high-rise escape route.

1. FRL 120/120/120 Fire-Rated Integrity

Because these ducts travel vertically through the building's fire compartments, they must be protected against external fire exposure.

• Integrity & Insulation: We encase the galvanized steel (G.I.) ducts in BOMBA-approved fire-rated boards or high-density mineral wool wraps. This ensures that even if a fire occurs on Floor 5, the air being delivered to Floor 40 remains cool and smoke-free.

• Structural Stability: We utilize reinforced, fire-rated hanger systems and seismic-rated supports to ensure the ductwork does not buckle or collapse under intense thermal stress.

2. The 50 Pa Pressure Differential

Under MS 1472, high-rise systems must maintain a stable pressure environment.

• Static Protection: When all fire doors are closed, the ducting must deliver enough air to maintain a 50 Pa (Pascal) difference between the stairwell and the floor area, physically blocking smoke ingress.

• Dynamic Protection (1.0 m/s): When an evacuee opens a fire door, the system must instantly provide an air velocity of 1.0 m/s across the opening to "wash away" incoming gases.

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Critical Operational & Energy Benefits

As a BOMBA-Compliant M&E Specialist, EKG ensures your high-rise infrastructure supports long-term building performance:

• TNB Energy Efficiency (Leakage Control):

  In a high-rise, air leakage is amplified by the stack effect. By ensuring a Class C Airtight installation, we eliminate static pressure loss. This allows your Variable Frequency Drive (VFD) to maintain safety standards at lower frequencies (Hz), directly reducing 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 waste. Our precision-sealed fire ducts protect your Building Energy Index (BEI) and ensure your facility is ready for green building audits.

• Prevention of "Door-Lock":

  Improperly balanced high-rise ducting can lead to over-pressurization at the floors closest to the fan. EKG utilizes Barometric Relief Dampers and calibrated discharge grilles to ensure that the door-opening force never exceeds the 110 N limit, ensuring a safe exit for all occupants.

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High-Rise Ducting Performance Matrix

Feature	Standard Commercial HVAC	EKG High-Rise Staircase Ducting
Material Gauge	0.5mm – 0.8mm GI	1.2mm (BOMBA Standard)
Fire Resistance	None	Mandatory 2-Hour (FRL 120/120/120)
Operating Pressure	Low Static	High Static (50 Pa Differential)
Sealing System	Standard Mastic	Certified Intumescent Sealant
BOMBA Required	No	Mandatory for High-Rise FC

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Why Choose EKG M&E Sdn Bhd?

• Total 3D BIM Coordination: High-rise shafts are extremely congested. We utilize 3D modeling to route fire-rated ducts with zero "clashes" against wet risers, standpipes, or structural beams.

• Turnkey BOMBA Submission: We perform the mandatory Pressure Differential Test, Door Opening Force Test, and Anemometer Airflow Traverse required for your Fire Certificate (FC) application.

• Strategic Regional Support: Based in Kuala Lumpur, we provide professional audits and technical proposals for Grade-A office towers, luxury condominiums, and hospitals across Malaysia.

Is your high-rise escape route protected by a certified life-safety airway? Contact EKG M&E Sdn Bhd today for a professional high-rise staircase ducting audit and technical proposal.