Safer Greener Tomorrow

Asbestos - Information

Asbestos - a fibrous amphibole; used for making fireproof articles; inhaling fibers can cause asbestosis or lung cancer.

Asbestos Related Words

Amphibole - a mineral or mineral variety belonging to the amphibole group
Chrysotile - a gray or green fibrous mineral; an important source of commercial asbestos
Tremolite - a white or pale green mineral (calcium magnesium silicate) of the amphibole group used as a form of asbestos

Asbestos Facts

  • Asbestos is a family of naturally occurring minerals, found in serpentinite and other metamorphic rock.
  • Because of its strength and resistance to heat, asbestos was used for insulation, heat resistant clothing, roofing and fire proofing. It was also used as an additive to ease the manufacture and application of ceiling and wall finishes, tape joint compounds, floor tiles and mastics.
  • Since many building materials can contain asbestos, remodel and repair activity in residential and commercial structures which disturbs asbestos-containing materials may cause the release of asbestos fibers into the air. There is no known health threat if asbestos-containing materials are in generally good condition and are left undisturbed.
  • Inhaling airborne asbestos fibers can increase the risk of developing certain lung diseases, including lung cancer, mesothelioma and asbestosis.

Types of Asbestos

There are two types of asbestos containing material:

Friable Asbestos-Containing Materials - contain over 1% asbestos and can be crumbled, crushed or reduced to powder by hand pressure when dry. Common examples of friable asbestos-containing materials are spray acoustic ceilings, acoustic tiles, plaster, pipe and duct wrap, and paper backing of linoleum

Non-friable Asbestos-Containing Materials - are typically bound up with cement, vinyl, asphalt or some other type of hard binder. Some examples of non-friable asbestos building materials are cement, vinyl floor tiles and stucco. Non-friable asbestos-containing material may become friable if it is crushed, crumbled, pulverized, or subjected to sanding, drilling, grinding, cutting, or abrading.

Soffits
Soffits

Backing Glues
Backing Glues

Stipple Ceilings
Stipple Ceilings

Super 6 roofing
Super 6 Roofing


Switch Board Backings
 

For more information on asbestos see the official guides from the ministry of health www.health.govt.nz.
Also for more infomration please visit www.asbestosaware.co.nz

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Asbestos - Information

A fibrous amphibole; used for making fireproof articles; inhaling fibers can cause asbestosis or lung cancer.

Read More