Document ID: chunk:federal_register_of_legislation:F2016L00418:body:0:p43
Version: federal_register_of_legislation:F2016L00418
Segment Type: other
Provision Reference: 
Character Range: 111295–114172

and installing an enclosure
The design and installation of the enclosure should consider:
    * methods used to contain the asbestos removal work area
    * provision and locations of decontamination/changing facilities and negative pressure exhaust units
    * precautions to be implemented to eliminate or minimise the spread of asbestos contamination outside the asbestos removal work area
    * air quality within the enclosure
    * types of lighting, whether natural or artificial
    * temperature within the enclosure to avoid heat stress
    * any other hazards in the enclosure (these must be identified and the risks controlled before any asbestos removal work commences).
The enclosure should:
    * be constructed of heavy-duty plastic sheeting (200 µm minimum thickness) and enclose all the walls, windows and doors. Wooden cleats may be used to anchor the plastic sheeting to walls. Re-milled plastic sheeting should not be used
    * have viewing panels placed in appropriate locations so that the asbestos removal work area can be seen from outside the enclosure
    * have adequate lighting within the enclosure, either:
       * naturally, using clear plastic or perspex panels in the enclosure walls
       * artificially, preferably from outside the enclosure using clear plastic or perspex panels.
During the masking up and later removal of the sheeting, all persons must wear appropriate PPE, for example coveralls, and as a minimum a half-face respirator with P1 filters.
Where the asbestos removal work area connects either to the outside environment or to the rest of the building, it should be enclosed so that an airtight seal is maintained for the duration of the asbestos removal work (for example, windows, ducts, wall cavities and lift entrances).
All movable items should be removed from the asbestos removal area. If this is not possible, move the items from the immediate asbestos removal work area and cover with two layers of plastic sheeting with a minimum overlap of 300 mm between the layers. Both layers should be double taped.
All non-movable items such as fixtures and fittings should be covered with plastic sheeting and the joints sealed.
Airlocks should be placed at the entry points to the change area and constructed using double sets of overlapping plastic with suitable provisions for ensuring a seal.
All floors should be protected with at least one layer of woven plastic to prevent penetration during the asbestos removal work. The joints should be lapped 300 mm and sealed with double-sided tape and duct tape.
If the asbestos removal area is next to areas occupied by unprotected persons, priority should be given to:
    * performing the asbestos removal work during periods when these areas are unoccupied
    * greater isolation of the asbestos removal area. This is the preferable option.
Consideration should be given