A Class Asbestos Clearances
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For anyone that doesn't know the process on Asbestos Clearances. Asbestos that is considered "A Class" is Asbestos that can become or has become friable easily, for example textured ceilings, vinyl flooring, asbestos insulation/lagging, AIB, fire damaged ACM etc. An A class clearance is more extensive than a B class clearance.

When an Asbestos removal company is removing friable Asbestos they need to create an enclosure consisting of 2 layers of 200 micron polythene with running negative pressure units, a full 3 stage decontamination unit with running water etc. 
Our final clearance report is made up in stages, which includes:
  • Details of our enclosure check ie conducting a smoke test to check the integrity of the enclosure which ensures us that the enclosure is tight which would stop any fibre release
  • Ensuring the correct NPU and/or amount of NPU's are being used
  • Placing an air monitor at the decontamination units entry/exit point, and depending on where the NPU exhaust is placing an air monitor at the end of the exhaust
  • in-depth final clearance which includes conducting clearance air tests to ensure the fibre trace level is at an acceptable level and taking swab tests (which pick up any asbestos that may have been missed)

integrity Testing Enclosures

Vinyl Removal Clearance

Ceiling Removal Clearance

fire damaged
​(Class A)

AIB removal
​(CLass A)

Sprayed Insulation 
​(CLASS A)