Air Testing Solutions & Smoke Shaft Air Testing
In modern high-rise buildings, safety is never left to chance. As part of a fire-engineered safety strategy, smoke shaft systems play a crucial role in managing smoke movement during a fire, allowing for safe evacuation and aiding firefighting efforts.
A smoke shaft is essentially a vertical duct designed to draw smoke away from escape routes, keeping stairwells and corridors clear. For it to work effectively, its airtightness is vital. Any leakage can compromise the entire smoke control system. That’s why an air tightness test — with a typical target of 3.8m³/hr/m² — is a critical part of the commissioning process. If the shaft fails to meet this standard, it cannot be signed off by the fire system contractor or Building Control.
Why Airtightness Testing Is Essential
Even small leaks can reduce the efficiency of smoke extraction, slowing down smoke removal and allowing it to spread into protected areas. This not only risks occupant safety but also undermines compliance with fire safety regulations. A failed airtightness test can delay handover and increase costs, making accurate and efficient testing an important project milestone.
Our Experience and Expertise
At Air Pressure Testing, we’ve helped clients achieve airtightness compliance on smoke shafts of all sizes, from compact systems in residential blocks to large, complex installations in commercial towers. When a shaft fails its initial test, our diagnostic service quickly identifies the cause.
We use a combination of smoke testing and thermal imaging to trace air leakage paths within the shaft’s envelope. By pinpointing the exact problem areas, our clients can carry out targeted remedial works, avoiding unnecessary re-sealing or costly trial-and-error approaches.
Once repairs are completed, we return for a retest, often resulting in a pass on the next visit. Our detailed air leakage reports ensure everyone involved, from contractors to Building Control, has a clear understanding of the issues and solutions.
What’s Included in Our Premium Smoke Shaft Testing Service
When you work with us, you benefit from:
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Specialist smoke shaft surveys carried out by highly experienced consultants.
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UKAS & ATTMA Level 2 accreditation, your assurance of competence and compliance.
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Official certification for smoke shaft air tests, recognised by UKAS/ATTMA.
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The latest high-powered fan equipment for accurate testing.
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UKAS-calibrated instruments for reliable results.
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Advanced diagnostics using both smoke machines and thermal imaging.
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Rapid testing turnaround to keep your project on schedule.
Setting the Standard in Airtightness Testing
Air Pressure Testing is among the few companies qualified to test both buildings and specialist components like smoke shafts and floor plenums to UKAS and ATTMA Level 2 standards. Our blend of technical skill, cutting-edge equipment, and problem-solving approach ensures your project meets safety requirements without unnecessary delays.
For more information about our smoke shaft (AOV) testing or to download our smoke shaft checklist, visit www.aptsoundtesting.co.uk. Simply get in touch via our online contact form or call 01525 303905 to discuss your specific requirements with our friendly and knowledgeable acoustic and air tightness consultants.