Integrity-tested fire-rated duct assembly

Integrity-Tested Fire-Rated Duct Assembly by EKG M&E Sdn Bhd

In the rigorous safety environment of Kuala Lumpur and Selangor, a "fire-rated" label is not enough. An Integrity-Tested Fire-Rated Duct Assembly refers to a complete system—comprising the duct, hangers, seals, and penetrations—that has been physically tested as a single unit to withstand a fire. EKG M&E Sdn Bhd specializes in the installation of these pre-engineered assemblies, ensuring that your building's air distribution system maintains its 2-hour fire resistance under the most extreme thermal stress.

The Engineering of a Certified Assembly

Integrity testing (under standards like BS 476 Part 24 or ISO 6944) evaluates how the entire assembly interacts during a fire. It is not enough for the metal to survive if the hangers fail or the joints leak.

1. Stability, Integrity, and Insulation (FRL 120/120/120)

Our assemblies are certified to maintain performance for 120 minutes:

• Stability (Failure of Support): The assembly must not collapse. We utilize reinforced, fire-rated hanger systems with oversized threaded rods and steel C-channels that account for the thermal expansion of the metal.

• Integrity (Passage of Flame): The assembly must remain smoke-tight and flame-tight. Every longitudinal and transverse joint is sealed with certified intumescent gaskets that prevent "burn-through."

• Insulation (Temperature Rise): The assembly prevents radiant heat from transferring to the "cold side." This ensures that materials outside the fire zone (like data cables) do not ignite spontaneously.

2. Penetration & Expansion Management

• Expansion Bolsters: Stainless steel undergoes significant expansion at high temperatures. Our assemblies include engineered expansion joints that allow the duct to grow without buckling or destroying the fire-rated wall it passes through.

• Certified Fire-Stopping: At every wall or floor penetration, we utilize an integrated fire-stop system that expands to create a permanent, non-combustible plug, maintaining the building's fire compartmentation.

Critical Operational & Energy Benefits

As a BOMBA-Compliant M&E Specialist, EKG ensures that integrity-tested assemblies support long-term operational efficiency:

• TNB Energy Efficiency (The Airtight Standard):

  Because these assemblies are tested for integrity, they are inherently airtight (Class C or D). This minimizes static pressure loss during daily use. By eliminating air leakage, your Variable Frequency Drive (VFD) can maintain required airflows at lower frequencies (Hz), directly resulting in a lower monthly TNB electricity bill.

• EECA 2024 & Building Sustainability:

  Under the Energy Efficiency and Conservation Act (EECA) 2024, efficient mechanical transport is mandatory. Our precision-sealed assemblies prevent the leakage of conditioned air into unconditioned ceiling voids, protecting your Building Energy Index (BEI).

• Reduced Life-Cycle Cost:

  By installing a pre-engineered assembly rather than a "field-fabricated" solution, you ensure consistent quality. These systems are designed to last 30 to 50+ years with minimal maintenance, providing the lowest life-cycle cost for KL property owners.

Performance Requirement Matrix

Why Choose EKG M&E Sdn Bhd?

• Total 3D BIM Coordination: We utilize advanced 3D modeling to route these assemblies through crowded ceiling spaces, ensuring zero "clashes" with fire sprinklers or structural beams while maintaining mandatory fire separation.

• Turnkey BOMBA Submission: We provide all necessary test reports and material data sheets required for Fire Certificate (FC) applications and annual renewals.

• Total Performance Commissioning: Post-installation, we perform mandatory Duct Leakage Tests (DW/143) and Smoke Tests to certify the assembly is performing as designed.

Is your facility's fire safety based on guesswork or a tested assembly? Contact EKG M&E Sdn Bhd today for a professional integrity-tested ducting audit and technical proposal.