Asbestos in Australian Homes: What Inspectors Need to Know

The scale of asbestos in Australian housing

Australia was one of the highest per-capita users of asbestos products in the world. Between the 1940s and 1980s, asbestos-containing materials (ACMs) were used extensively in residential construction — in cladding, roofing, insulation, flooring, and dozens of other applications.

An estimated one in three Australian homes built before 1990 contains some form of asbestos. For properties built before 1980, the proportion is even higher. The full ban on asbestos importation and use came into effect in December 2003, meaning any property built or renovated before that date could potentially contain ACMs.

For building inspectors, understanding where asbestos is likely to be found, how to assess its condition, and how to report it professionally is essential knowledge.

Where asbestos is commonly found

Exterior

• Fibro cladding (fibre cement sheeting) — the most common ACM in Australian homes. Flat or profiled sheets used as wall cladding, eaves lining, and gable infills
• Roofing — corrugated asbestos cement (Super Six) roofing sheets
• Fencing — asbestos cement fence panels
• Guttering and downpipes — asbestos cement profiles
• Water pipes — asbestos cement pressure pipes (underground)

Interior

• Wall and ceiling linings — flat asbestos cement sheets, particularly in wet areas (bathrooms, laundries, kitchens)
• Vinyl floor tiles — typically 9-inch (225mm) square tiles
• Vinyl sheet flooring backing — the felt backing on older vinyl sheet flooring
• Textured coatings — some textured ceiling coatings and paints
• Behind tiles — asbestos cement sheeting used as a tile substrate in wet areas

Roof space and subfloor

• Insulation — loose-fill asbestos insulation (primarily in ACT, but found elsewhere)
• Pipe lagging — insulation on hot water pipes
• Flue pipes — asbestos cement flue pipes from heaters and hot water systems
• Electrical backing boards — behind meter boxes and switchboards
• Thermal boards — behind fireplaces and heaters

Identifying asbestos by building era

| Construction Period | Asbestos Likelihood | Common ACMs | |---|---|---| | Pre-1940 | Moderate | Pipe lagging, electrical backing boards, some floor tiles | | 1940-1970 | Very high | Fibro cladding, roofing, floor tiles, insulation, wet area linings | | 1970-1985 | High | Fibro cladding, floor tiles, textured coatings, eaves linings | | 1985-1990 | Moderate | Reduced use, but still found in some products | | 1990-2003 | Low | Declining use, but not fully eliminated until 2003 ban | | Post-2003 | Very low | Should not contain ACMs (unless using pre-ban stockpiled materials) |

Important: These are general guidelines. The only way to confirm whether a material contains asbestos is laboratory analysis of a sample. Visual identification alone is not reliable.

Condition assessment

When documenting ACMs during an inspection, assessing condition is critical. The condition determines the risk and influences the management recommendation.

Condition ratings

• Good condition — material is intact, undamaged, with surface coating or paint in good condition. Low risk if left undisturbed
• Fair condition — minor surface damage, weathering, or paint deterioration. Low-to-moderate risk. Monitor and maintain
• Poor condition — visible damage, cracking, broken edges, surface erosion. Moderate-to-high risk. Seal, encapsulate, or remove
• Severely degraded — material is friable, crumbling, or actively releasing fibres. High risk. Requires immediate action — restrict access and arrange removal

What to look for

• Surface condition — is the material intact or showing signs of weathering, erosion, or damage?
• Friability — can the material be crumbled or reduced to powder by hand pressure? Friable ACMs are the highest risk
• Damage — broken edges, drilled holes, saw cuts, impact damage — all release fibres
• Coating condition — paint or sealant over ACMs reduces fibre release. Deteriorating coatings increase risk
• Location — ACMs in high-traffic areas or areas subject to disturbance are higher risk than those in undisturbed locations

WHS requirements for asbestos inspections

Who can inspect for asbestos?

Requirements vary by state, but generally:

• Division 5 surveys (management surveys) — identify the presence and condition of ACMs. Most states require the inspector to be a competent person with relevant training
• Division 6 surveys (refurbishment/demolition surveys) — more invasive, involving access to all areas including behind linings. Typically requires a licensed asbestos assessor

Documentation requirements

Under Work Health and Safety Regulations, an asbestos inspection report should include:

1. Property identification — address, building type, areas inspected
2. Date and scope — when the inspection was conducted and what was covered
3. Register of identified ACMs — location, material type, condition, risk assessment
4. Photographic evidence — photos of each identified or suspected ACM
5. Risk assessment — likelihood of fibre release based on condition and location
6. Management recommendations — leave in place, seal, encapsulate, or remove
7. Limitations — areas not accessed, materials not sampled

Using InspectPro, you can build this documentation as you inspect — photographing and annotating each finding, recording condition ratings, and generating the complete report on-site.

Reporting asbestos findings professionally

Be specific, not generic

Poor: "Asbestos cement sheeting observed in bathroom."

Better: "Flat asbestos cement sheeting (suspected ACM) used as wall lining in main bathroom, south and west walls. Material is in fair condition with minor surface crazing and paint deterioration at lower edges. No broken edges or visible fibre release. Recommend sealing deteriorated areas and including in asbestos management plan. Confirmation sampling recommended."

Annotate your photos

Clear photo annotations are essential for asbestos reports. Use InspectPro's annotation tools to:

• Outline the extent of the ACM on the photo
• Arrow specific damage, deterioration, or fibre release points
• Label the material type and condition rating
• Note the room and wall/ceiling/floor location

Include management recommendations

For each ACM, provide a clear recommendation:

• Leave in place and monitor — good condition, undisturbed location, include in management plan
• Seal or encapsulate — minor deterioration, paint or sealant will reduce risk
• Remove — poor or severely degraded condition, high-risk location, planned renovation
• Restrict access and seek specialist assessment — severely degraded, friable, or suspected loose-fill insulation

Common mistakes in asbestos reporting

1. Stating materials "contain asbestos" without laboratory confirmation — use "suspected ACM" or "presumed ACM" unless you have lab results
2. Not documenting condition — identifying ACMs without assessing their condition leaves the client without actionable information
3. Ignoring concealed locations — ACMs behind tiles, under floor coverings, and in wall cavities are common but often overlooked in visual inspections. Note these as limitations
4. Not photographing every finding — every suspected ACM needs photographic evidence with clear annotation
5. Generic recommendations — "seek further advice" is not helpful. Provide specific, actionable recommendations for each finding

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