BOMBA Smoke Spill Duct Integrity Test

BOMBA Smoke Spill Duct Integrity Test by EKG M&E Sdn Bhd

In 2026, the Smoke Spill Duct Integrity Test is a non-negotiable legal requirement for high-occupancy and high-rise buildings in Malaysia. Under the Uniform Building By-Laws (UBBL) and MS 1780, smoke spill systems (Smoke Extract Systems) must be verified to effectively exhaust toxic gases during a fire. This test is the final hurdle to obtaining or renewing your BOMBA Fire Certificate (FC).

At EKG M&E Sdn Bhd, we apply 34 years of mechanical engineering expertise to ensure your fire-rated ductwork maintains its structural and airtight integrity under extreme heat, protecting lives and your building's compliance status.

1. The Core Engineering Mandate (BOMBA 2026)

A smoke spill system is only as good as its weakest joint. If a duct leaks or collapses during a fire, it fails to remove smoke from evacuation routes.

• Temperature Resistance: To pass the BOMBA audit, ductwork must be integrity-tested and certified to withstand 250°C for a minimum of 120 minutes (2 hours)

• Airtightness Standards: Smoke spill ducts are typically tested to Class C (High Pressure) standards. This ensures that the smoke is channeled directly to the discharge point without "mushrooming" into ceiling voids or stairwells.

• Material Certification: Every component—from the 1.2mm G.I. panels to the intumescent sealants—must have a valid Sijil Perakuan Bahan (Product Certificate) from BOMBA.

2. The Integrity Testing Procedure

We conduct a rigorous, multi-stage "Live" verification to prove the system performs as designed:

1. Pressure Testing (DW143): We pressurize the fire-rated duct to its design operating pressure (often above $1000\text{ Pa}$). This measures the air loss per square meter to ensure it meets the Class C airtightness limit.

2. Smoke Performance Test: We use Non-Toxic Smoke Generators to visualize the airflow. This confirms that the smoke is being successfully extracted from the fire zone and discharged at the rooftop or external wall without leakage in between.

3. Stability & Support Inspection: We verify that the duct supports (hangers) are fire-rated and spaced correctly. If supports fail under heat, the entire duct line could collapse, blocking fire paths.

4. BMS Integration Check: We trigger the fire alarm signal to verify that the Motorized Smoke Dampers open and the Smoke Extract Fans ramp up to full speed within the required response time.

3. Compliance Matrix: Fire Duct vs. Standard Duct

4. Why This Matters for Your 2026 Audit

• Avoid Legal Penalties: Non-compliance can lead to the rejection of your Fire Certificate, business disruption, and fines of up to RM100,000.

• EECA 2024 Synergy: Airtight fire ducts prevent the leakage of chilled air into ceiling voids during normal operation, lowering your Building Energy Index (BEI).

• Life Safety: Verified integrity keeps escape routes clear of toxic smoke, providing the critical time needed for occupants to evacuate safely.

Why Choose EKG M&E Sdn Bhd?

• 34 Years of Engineering Depth: Based in Kuala Lumpur, we understand the mechanical physics of fire safety. We ensure that our tests don't just "pass," but truly protect.

• Turnkey Documentation: We assist in the preparation of technical drawings and digital test reports required for your E-FEIS BOMBA submission.

• 3D BIM Coordination: We utilize 3D modeling to ensure your fire duct routes are "clash-free" with sprinklers and structural beams, maintaining the required fire separation distances.

Is your building's fire ducting ready for the 2026 BOMBA audit? Contact EKG M&E Sdn Bhd today for a professional smoke spill duct integrity test and secure your Fire Certificate renewal.