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Duct Pressure Testing

A periodic Duct Leakage Test forms a part of building regulations. It is an integral part of your considerations when designing the mechanical infrastructure of your ventilation and air conditioning units.

What is Duct Leakage?

Duct leakage is the loss of air quantity within a system and subsequent operating efficiency. Professional installation and ductwork sealing reduces the chance of this occurring, however seals and HVAC bodywork inevitably deteriorates over the years simply from usage.

Pressurizing the ductwork to a specific static pressure to calculate the volume of Cubic Feet/Minute passing through an orifice plate determines any loss of air quantity within a HVAC system.

Our experienced California based team can quickly identify leaks in your ductwork and assist contractors in the efficient repair of this, all in adherence with SMACNA specification.

Let our team of professionals support your due diligence by undertaking your air duct pressure testing today.

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Duct Leakage Testing

What We Do

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Pre-Construction Air Barrier Continuity and Acoustic Design and Advice

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Air Leakage Testing

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Acoustic Testing

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Acoustic Consultancy

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Part F Ventilation Testing

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EPC Certificates

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Thermography Testing

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Passivhaus and AECB Silver Standard Low Carbon Buildings. Part L SAP and SBEM calculations

Who Do We Cater To?

What is the effect of leaking ducts?

Prior to duct tightness testing being introduced as a building regulation, filter slots were left open and ducts were not sealed closed. This resulted in unfiltered or regulated air to infiltrate the ductwork and be disbursed through buildings.

Leaking Ducts can result in the following: 

  • Poor air quality and contamination 
  • Up to a 30% inflation in utility bills
  • Premature equipment failure
  • High humidity in summer/ air dryness in winter
  • Uneven heating and cooling distribution

California's Duct Pressure Testing Experts

Therma is a member of SMACNA, ASHRAE, and IEST. Our technicians are NEBB, TABB, and NSF-certified. Every air duct test is conducted in accordance with its respective standards and procedures.

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