Rooftop exhaust systems

Rooftop Exhaust Systems by EKG M&E Sdn Bhd

In the urban and industrial landscapes of Kuala Lumpur and Selangor, the rooftop is where the most critical phase of ventilation occurs: the final discharge of heat, grease, and contaminated air. EKG M&E Sdn Bhd provides professional Rooftop Exhaust Systems, specializing in high-performance fan units and weather-proofed infrastructure designed to withstand the heavy duty cycles and torrential rainfall of the Malaysian climate.

The Logic of "High-Plume Discharge"

The goal of a rooftop system is to eject effluent high into the atmosphere, ensuring it does not re-enter the building’s fresh air intakes or affect neighboring properties.

1. Advanced Fan Selection by Application

We match the mechanical drive of the fan to the specific resistance of your building’s vertical riser:

• Vertical Discharge Centrifugal Fans: These are the gold standard for F&B and industrial facilities. They "throw" air straight up away from the roof surface, protecting the roof membrane from grease deposition and heat damage.

• Axial Upblast Fans: Ideal for high-volume warehouse cooling or general ventilation where high Cubic Meters per Hour (CMH) are required at lower static pressures.

2. Weather-Proofing & Curb Integrity

The most common failure point of a rooftop system is not the fan, but the "Roof Curb" (the base where the fan meets the building).

• Watertight Curbing: We install heavy-duty, galvanized or aluminum roof curbs with integrated flashing to ensure zero water ingress during heavy Klang Valley thunderstorms.

• Automatic Gravity Shutters: To prevent "back-drafts" and keep rain/pests out when the system is off, we install precision-weighted shutters that only open when the fan is active.

Critical Operational & Safety Benefits

As an HVAC and M&E Specialist, EKG ensures that your rooftop asset is optimized for long-term reliability:

• TNB Savings via VFD Modulation:

  Rooftop fans are often the largest motors in a ventilation system. By integrating Variable Frequency Drives (VFDs), we allow the fan to ramp down during off-peak hours. Reducing the frequency ($Hz$) by just 20% can cut your TNB electricity consumption by nearly 50%, significantly lowering your Building Energy Index (BEI).

• Vibration Isolation & Acoustic Control:

  Rooftop fans can cause mechanical resonance that travels through the building's structure. We utilize spring isolators and rubber gaskets to ensure that high-speed fan operation does not disrupt the occupants on the floors below.

• BOMBA & Maintenance Accessibility:

  Fire safety codes require that rooftop fans be accessible for inspection. Our installations feature Hinged Curb Adapters, allowing the fan to be tilted back safely for degreasing and motor servicing—a mandatory requirement for passing annual BOMBA inspections.

Performance and Durability Matrix

Why Choose EKG M&E Sdn Bhd?

• Total System Sync: We interlock your rooftop exhaust with your Make-Up Air (MUA) and Fire Alarm Panels, ensuring that in the event of an emergency, the system performs according to BOMBA smoke spill requirements.

• Professional Anemometer Commissioning: We certify the final exit velocity of your exhaust to ensure it meets Department of Environment (DOE) standards for "Clear Stack" discharge.

• Strategic Klang Valley Support: Based in Kuala Lumpur, we provide on-site motor repairs, belt replacements, and structural waterproofing for rooftops across shopping malls, factories, and commercial towers.

Is your rooftop exhaust leaking, noisy, or driving up your energy bills? Contact EKG M&E Sdn Bhd today for a professional rooftop system audit and technical proposal.