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Building Air Leakage Survey



The Problem
It is not unusual to find buildings in the Middle East suffering from excessive air leakage. This defect results in significantly increased power consumption and higher utility costs. Other related issues that can occur due to this problem are condensation, mould growth and accelerated deterioration of the building fabric. Often these problems will be more visible during the summer months when external air humidity and temperatures increase. In certain instances where air pressures differentials are very high the building can also suffer from loud whistling noises as the air moves through the building.

The Cause
The cause of this problem in new buildings is typically a combination of poor building design and workmanship resulting in gaps to the external building envelope (external walls and roof) that allows air to penetrate in and out of the building. In older properties these problems commonly occur where there is poor maintenance allowing the building envelope to deteriorate resulting in seal failure and gaps to form between building components.

Inspection & Testing
Realpoint with its property inspection and technical expertise can work with approved specialists to undertake a full building survey that includes air pressure, thermal and building envelope tests to identify the air leakage problems and the rectification works required. Tests and appraisals can include;
Air Pressure & Leakage Tests

  • Thermal Imaging Of Leaks Under Pressure
  • Smoke Tracing
  • Thermal BIM modelling
  • Envelope Construction Analysis
  • Thermal Control, Insulation & Vapour Controls
  • Temperature, Humidity & Moisture Testing
  • Rainwater Controls & Leakage
  • Expansion Joints

Solution Recommendations
Upon completion of the tests and investigations Realpoint then study the findings in order to provide a report which will include test results, details of the problems identified and the recommended rectification works, budget costs and programme.

Rectification
We then work with building owners and occupants to project manage, procure contractors and administrate the rectification works ensuring that they are carried out properly. Where necessary we will then carry our further testing to check and demonstrate that the defects are fully rectified.