Resources Asbestos Safety

Asbestos Safety






Asbestos Safety

Asbestos Management

Asbestos Safety - Home Owners

ADFA strongly recommends that you DO NOT undertake the removal of asbestos from your home by yourself. Specially trained asbestos consultants should always be used whether it is required in your local jurisdiction or not.



ATTENTION: HANDY PEOPLE & HOMEOWNERS - PLEASE READ THIS FACTSHEET BEFORE DOING ANY RENOVATIONS!!!

Also view the list of "Commonly Used Asbestos Materials" below.

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Where is Asbestos?
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Asbestos Management

Asbestos Safety - Workplace Legislation

New Legislation was introduced in January 2012 regarding Asbestos Management in the workplace. Last updated May 2012.

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Asbestos Management

Commonly Used Asbestos Materials

The following asbestos pictures are those where an asbestos consultant is likely to identify suspected asbestos containing materials and general in nature. This is by no means a definitve list of products as there are over 3,000 products that asbestos was used.

The only way to determine if asbestos is present is to have an asbestos consultant to inspect and collect a sample for asbestos testing.

For further information on qualified Asbestos Consultants contact us HERE.


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Air Conditioning

Asbestos can be located within the duct work of Air Conditioning re-heating units. This is more specifcially located around heating elements. The first picture identifies the control box where the re-heating elements can be located. The second picture shows the asbestos millboard lining which surrounds the air conditioning re-heating elements.

Picture of asbestos air conditioning          Picture of asbestos millboard to AC ductwork

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Carpet Underlay

Asbestos was carried in hessian bags from Wittenoon in Western Australia which was then subsequently used in some carpet underlay. Also asbestos was used in the adhesive to glue down the carpet underlay which is usually a black bitumous material. The first picture of is asbestos carpet underlay and the second picture is of the black adhesive or glue underneath the carpet that may contain asbestos.

Asbestos Carpet Underlay          Bitumous Asbestos Adhesive Under Carpet

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Ceilings

Asbestos ceilings can be found in many forms which include asbestos fibre cement sheet (fibro), vermiculite spray applied ceilings. The vermiculate look like popcorn and many of you might remember your old high school science lab with this material. Asbestos ceiling tiles are also comonly used. The first picture is of an asbestos fibro ceiling and the second picture is of the vermiculate popcorn ceiling.

Picture of Fibro Asbestos Ceiling          Picture of Asbestos/Vermiculite Popcorn Ceiling

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Cloth

Cloth linings can be found around material that may require thermal insulation such as a fire cabinet in the first picture and around flues as found in the second picture. Fire blankets can also be made of asbestos.

Picture of Woven Asbestos Cloth to Fire Cabinet          Picture of Woven Cloth Asbestos

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Closets

Closets may be lined with asbestos to increase the fire resistance. This may be in the form of mainly fibre cement sheeting (fibro), softer insulation board and sometimes millboard to ceiling linings.

Picture of Closet Door lined with Asbestos          Picture of Asbestos Lining toi Rear of Closet

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Cowls

Absestos cowls to flue pipes may contain asbestos cement.

Asbestos picture of cowl to flue pipe          Asbestos cowl picture

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Ductwork

Metal ductwork as well as containing millboard to the reheating elements may contain asbestos to the gasket material lining the flange joints to provide an airtight seal. The asbestso was introduced to hinder the spread of flame within ductwork. The first picture is of air conditioning ductwork and the second picture is of cooling tower ductwork, where the asbestos is located within the flange joints.

Picture of Asbestos Sealant to gasket Flange Joints          Picture of Ductwork to Colling Tower Containing Asbestos Sealant

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Eaves

The majority of eaves to all buildings built before 1990 will have asbestos. This is one of the most commonly tested material for asbestos. The picture below show typical asbestos eaves which are made of asbestos fibre cement sheeting otherwise known as fibro.

Picture of Asbestos Eaves to Building          Asbestos Picture of Eaves to House

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Electrical Backing Boards

These are also commonly found asbestos containing materials which are of a resin or bitumous type material. One distinct sign (by no means definitve) is a strong smell of bitumen or tar, the smell of newly made road. While these are fairly stable composite materials, there is usually asbestos dust within the fuse box due to electricians drilling holes into the board. The first picture not only shows the asbestos resin backing board (also known as zelemite) but you can see fibre cement sheet behind the black asbestos resin board. The second picture highlights the potential of asbestos dust to be present within these fuse boxes.

Asbestos Pictures of Electrical Backing Boards          Picture of Asbestos Dust Due to Holes Drilled

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Fibre Cement Sheet

Fibre cement sheet is the most prominent and common form of asbestos that people recognise as being potentially hazardous. True fibre cement sheet is a very hard material. Caution should be applied in determining whether the sheet material is cement or insulating board. insulating board is a softer material and releases fibres much more readily than the stronger cement counterpart. A good indication of true asbestos cement is a golf ball or dimpled pattern on the back of the sheet. Asbestos insulating board will generally have a smoother finish to the back. The first picture below is of an external wall made of fibro and the second picture is of ceiling and wall lining which are most common in internal wet areas.

Picture of Fibro lining to walls          Picture of fibro wall and ceiling lining

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Fire Damage

Asbestos fire damage is caused as a result of exposure to temperatures of about 1000 ºC where the effects of charring, spalling, loss of structural strength, etc to the asbestos materials is observed. The major issue with asbestos fires is the debris left behind which can be very fine pieces and/or bundles of asbestos fibres which can be spread to a large area as a result of spalling. Asbestos contamination can be found within ash and dust after and during an asbestos fire. Picure 1 is of a house with asbestos fire damage (see parts of roof missing) and the second picture is of the fibre cement sheet which has spalled.

Photograph of Fire Damaged House          Picture of Fire Damaged Fibro

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Fire doors

Fire doors can comprise of friable asbestos core materal within the door which can be released into the air when fixing door handles, locks and hinges. When observed from the top of most firedoors the core is visable, being a white millboard material. Other firedoors can have fibre cement sheet lining the inside of the fire door. The first picture is of a firedoor in a plant room to a commercial skyscraper and the second picture is of a door to a block of residential units.

Picture of Abestos Fire Door          Fire door picture to block of units

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Floors

There are many different types of flooring material that contain asbestos. The most common are fibre cement sheet and vinyl sheet or tiles. In many cases the floor may be hidden by carpet and and tiles. A pre-demolition survey is required to identify these materials within the house. The first picture is of 20 mm thick fibre cement sheet under the tiles which can be seen just under the water stop. The second picture is of asbestos sheeting underneath a demountable building.

Picture of fibro fibre cement sheet under tiles to floor          Photo of asbestos floor under building

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Flues

Flue pipes which exhaust hot air from boilers and heater may contain gaskets and pipes containing both stable bonded asbestos such as cement pipes or friable rope gaskets to flange joints and plates. The first picture is an asbestos rope gasket around the pipe joints and the second being asbestos cement pipe in a garage.

Picture of asbestos gasket to flue pipe          Picture of Asbestos cement flue pipe in garage

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Gables

The pitched side of the roof otherwise known as gables can contain corrugated moulded asbestos products (picture 1) and flat asbestos cement sheet as shown from a garage in picture 2.

Picture of fibre cement sheet gables          Picture of fibro gables to garage

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Garages

External garages can contain asbestos cement walls, eaves and corrugated asbestos roofs. Newer garages that are part of the house can have asbestos sheet or fibro to assist in hindering the spread of fire, if a fire were to start in the garage.

Picture of asbestos garage          Picture of fire wall seperation to asbestos garage

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Gaskets

Asbestos gaskests are used in applications such as hot water pipes, exhausts and boilers. Gasket material is generally friable. The first picture is of the flange joint gasket to a water pipe. The second asbestos picture is of a rope gasket around the top edge of the boiler.

Picture of asbestos gasket to flange joint to pipe          Picture of rope gasket to boiler

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Insulating board

Insulating board is considered to be friable as the material can liberate asbestos fibres into the air much more easy than asbestos cement. In many cases most asbestos consultants will assess insulating board as a cement product, however asbestos insulating board is a much lower density than cement. Ensure that your asbestos inspector is NATA accredited or a certified occupational hygienist. The picture is of asbestos insulating board, note the low density of the material.

Picture of asbestos insulating board

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Insulation

Asbestos insulation was used in ceiling and roof cavities, with hundreds of homes in the ACT and canberra with this issue (picture 1). Limpet spray applied thermal insulation was used to fire proof structural beams to buildings (picture 2). This material is friable and an extremely high risk of exposure if disturbed.

Picture of asbestos roof insulation          Picture of limpet asbestos to structural beam

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Laundries

Laundries are one of the wet areas that commonly have asbestos cement sheet and asbestos insulating board lining to walls and ceilings. Vinyl tiles and cement sheets to the floors were also used. Due to water and electricity in close proximity, asbestos lined finishes will assist to reduce the spread of flame.

Picture of asbestos cement sheet to laundry

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Lift brakes

The brakes to lifts will generally contain asbestos to assist in reducing heat and thereby brake fade. Most brakes produced up until about 2004 contained asbestos. The pictures of the lift wheels do not clearly show the asbestos brake pads, however the clamp goes down on the wheel when the lift stops at each level.

Picture of Asbestos Lift Brakes          Lift Brake Friction Pad Asbestos Picture

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Mastic

Asbestos mastic sealant is used for a wide variety of purposes from joining flange joints to ductwork to pointing material to stone and bricks, and movement joints. The likelihood of the mastic containing asbestos is increased with areas that may be subjected to fire or that may assist the structural integrity during a fire.

Picture of mastic pointing work between stone          Picture of old mastic  to old air conditoning system

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Movement Joints

Movement joints to buildings can contain asbestos. These may be vertical movement joints or between concrete floor slabs. The asbestos being in a composite form is generally stable unless they have become brittle through heat. The movement joints may be generally an asbestos flexable sealant type material or a bitumous asbestos material.

Picture of asbestos movement joints          Picture of bitumous asbestos movement joint

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Packing Material

Asbestos fibre cement sheet and asbestos insualting board was used to pack and jack things to the right height or place. Packing supports were widely used under pylons to house supports and used in random places such as around the pipe shown in picture 2 and in brickwork. Asbestos packing material has been found on door frames. There seems to be no limit to where asbestos sheet was used.

Picture of asbestos packing material           Asbestos packing material picture

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Penetration Packing Pillows

These materials have loose friable asbestos within fabric used to pack penetration through walls, ceilings, pipes and around cables. This is to maintain the fire resistance of walls where services are required.

Picture of asbestos penetration packing pillows          Asbestos packing material pictures

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Pipes

Asbestos pipes may include downpipes, asbestos cement water pipes underground, asbestos cement flues for transporting hot air from boilers. They are generally made of asbestos cement, providing a hard wearing product. The first picture shows an asbestos downpipe from a gutter with some fibres from the breakage. The second picture is of storm water pipes underground.

Picture of asbestos cement pipe          Picture of underground waterpipe

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Removal

Ensure that if you have asbestos removed that a licensed asbestos removalist is engaged and an occupational hygienist provide asbestos air monitoring and asbestos clearance inspections.

Picture of asbestos removed          Asbestos removal picture

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Roof

Asbestos roofs are generally made of a corrugated moulded product that is generally fairly stable material. Being a brittle roof there are other significant issues which include the potential of falling through by walking on them.

Picture of corrugated asbestos roof          Corrugated roof pictures

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Roof Membranes

Roof membranes are generally a bitumous material. They can reside at the top of the roof or underneath roof tiles in a sheet material. They are usually a black colour and the asbestos fibres can generally be seen with the naked eye.

Picture of roof membranes          Roof membrane picture

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Sink Sound Dampener

Many people are unaware that asbestos can reside even under the kitchen sink. The square pad under the sink or bitumous spray applied coating may be made of asbestos.

Picture of sound dampener under kitchen sink          Asbestos picture of bitumous sound dampener sink

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Soil

Asbestos soil can be found due to old buildings and materials that have contaminated the soil. The level of risk is dependent on the type of asbestos contamination. Asbestos cement is generally bonded and maintains structural integrity compared to asbestos lagging materials that may disperse individual fibres into the air at high concentrations.

Picture of asbestos soil air monitoring          Picture of bonded asbestos cement in soil

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Spandrel Panels

Spandrel panels are the panels that are found below the windows to buildings. Asbestos spandrel panels can be of fibre cement sheet, 20 mm asbestos cement sheet or asbestos insulating board that is sandwiched between metal panels.

Picture of asbestos spandrel panels          Asbestos picture of spandrel panels

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Telephone Pits

Most of the old telephone pits contain asbestos as a bonded moulded product and can be seen in most streets in Australia.

Picture of asbestos telephone pits          Asbestos telephone pit pictures

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Toilet Cisterns & Cubicle Partitions

Toilet cisterns can comprise of asbestos moulded products either above the toilet or behind walls in cavities whilst toilet cubicle partitions can commonly comprise of 20mm thick compressed asbestos cement sheet.

Asbestos toilet cistern picture          Pictures of asbestos toilet cubicle partitions

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Valves

Friable asbestos can be found within the insulation of valves to hot water pipes and gaskets to flanges of valves and pipes.

Picture of friable asbestos insulation to valves

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Ventilation Ducts

Asbestos cement ventilation ducts are common on older buildings with basements, laundries and cellars below ground to increase the ventilation. These unsuspecting items may contain asbestos.

Asbestos picture of ventilation ducts          Picture of asbestso ventilation duct

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Vinyl Tiles

Asbestos vinyl tiles commonly contain asbestos. The asbestos tiles are nominally 9 inches square. Vinyl sheet can also contain asbestos as well as the bitumous adhesive used to glue the asbestos vinyl sheet and asbesots vinyl tiles down.

Picture of asbestos tiles          Asbestos pictures of vinyl tiles

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Walls

Absestos cement sheet and asbestos insulating board are used throughout buildings to increase the fire rating to hinder the spread of fire.

asbestos picture of wall lining          wall lining asbestos picture

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Window Putty

Window putty can contain asbestos of different types which may include a stable composite putty within old timber window frames (Picture 1) or rope type friable window gaskets to georgian wire frame windows (Picture 2). The use of asbestos within the putty assists the fire resistance, increasing the structural integrity of the window during a fire.

Picture of old timber frame windows may contains asbestos window putty          Picture of Georgian type wire frame window with asbestos rope