The Control of Asbestos Regulations (CAR) 2006
Regulation 16: every employer shall:
PREVENT, or where this is not reasonably practicable:
REDUCE to the lowest level reasonably practicable THE SPREAD OF ASBESTOS fromany place where work under his control is carried out. It is under this Regulation thatenclosures with negative pressure are required. The ultimate aim is to control the removaloperation and prevent the spread of asbestos. In containing the removal work, twoprincipal methods are used. Firstly, the whole building or room may be used as the actualcontainment structure, or secondly, the removal work can be contained within anenclosure. This is normally constructed of heavy-duty double –skinned polythene over atimber framework.
Prior to commencement of work, enclosures should be inspected, smoke tested and anyleakage rectified. Adequate negative pressure equipment is required to create slightvacuum conditions within the tented areas.