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Is this asbestos? What to do before you find out

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The question usually arrives with a tool already in your hand. The useful part is not guessing the answer, it is knowing what to do in the ten minutes before anyone can give you one.

Nobody can tell you whether a material contains asbestos by looking at it: not a builder, not a photo on a forum, and not this page. Asbestos is a microscopic mineral fibre. Only a physical sample examined under a microscope in a laboratory accredited by NATA turns a suspicion into an answer.

What you can do standing in front of the material is decide two different things: whether the question is live at all. And how to behave until it is settled. Both take about ten minutes, and the second one matters more than the first.

If you are already working on it, stop first

Most people reach this question with a tool in their hand. A sheet has cracked, a drill has gone through something chalky, an old shed wall has come away in pieces. The order that protects you is to stop before you research, not after.

  • Put the tool down and leave the material where it is. Intact material sitting undisturbed is a very different situation from material being worked on, and you can move back to the first one simply by stopping.
  • Do not sweep, do not use a household vacuum, and do not hose or pressure-wash anything. Each of those spreads dust rather than removing it, and a domestic vacuum will pass fine fibres straight back into the room.
  • Keep people, pets and air movement out of the area. Close the door, turn off fans and air conditioning to the space, and stop anyone walking debris through the house on their shoes.
  • Do not put broken material or dust in the household bin. Asbestos waste is a regulated waste stream in every state and territory, and it has to go to a facility licensed to take it.

If the material is already broken, crumbling or has produced dust, you have moved past a question about identification and into a question about clean-up, which is licensed work. Contact your state or territory work health and safety regulator for the procedure that applies where you live before doing anything else.

Does the age of the building make the question live?

Date is the cheapest filter there is, and it is the one most people skip straight past. Australia did not ban the manufacture, import and use of all asbestos until 31 December 2003. And asbestos was phased out of fibre cement sheeting (the “fibro” that makes up most household questions) during the 1980s, well before the full ban.

That gives a rough shape rather than a rule. A house built or last renovated before the mid-1980s makes the question live for almost any sheet product in it. Work done between then and the end of 2003 narrows the field but does not close it, because other asbestos-containing products stayed legal for longer than sheeting did. A house built entirely after the ban is a different conversation altogether.

The trap is that houses are not built once. A 1960s cottage with a 1995 bathroom and a 2015 kitchen contains three different eras of material. And the date that matters is the date of the thing you are looking at, not the date on the title. Renovations also move material around: offcuts of old sheeting turn up as shed linings, garden edging and workshop benches decades after the house they came from.

Where it sits changes what the question means

Location does not identify anything either, but it tells you what kind of problem you may be dealing with. Sheeting under eaves, bathroom and laundry linings, backing behind vinyl flooring, fences, shed and garage walls. And corrugated roof sheeting are the ordinary bonded-material questions, where the fibres are locked into cement and the risk comes from disturbing them.

One situation is different in kind rather than degree: loose, fluffy insulation in a roof space. That is the shape of loose-fill asbestos, which in affected parts of NSW and the ACT has its own government register and its own procedure. If that is what you are looking at, do not enter the roof space and do not touch it. See loose-fill asbestos and the Mr Fluffy legacy.

Why a photo settles nothing

Asbestos cement and the modern asbestos-free fibre cement that replaced it were made to do the same job, in the same shapes, in the same places. They weather alike and age alike. A photograph carries surface appearance, and surface appearance is precisely the information that does not separate them. That is why an image is worthless in both directions: it can frighten you about a harmless sheet as easily as it can reassure you about a dangerous one.

What close inspection genuinely does is sort “probably not worth testing” from “worth testing”: thickness, edge profile, the pattern on the back, the fixings. Those tells are set out in what asbestos sheeting actually looks like, and none of them is proof.

Presume, and behave as though it does

There is a move here that regulators use and homeowners rarely think of: if you do not know, you may simply presume the material contains asbestos and act accordingly. Presumption costs nothing, needs no laboratory and no waiting, and it produces exactly the same behaviour a positive result would. Leave it alone, do not disturb it. And treat any future work on it as work on asbestos.

That is why the honest answer to “is this asbestos?” is so often “it does not matter yet”. If the material is intact, painted, undisturbed and nothing is planned for it, a test result would not change a single thing you do.

The three ways the question actually gets settled

  1. You leave it alone and write it down. Note what it is, where it is and what condition it is in, and look at it occasionally. This is the correct outcome for most intact material in most houses.
  2. A sample is analysed by a NATA-accredited laboratory. This is the only route to certainty, and it applies only to the material sampled. How sampling and analysis work is covered in how an asbestos sample is taken and analysed, and who may collect a sample is set state by state.
  3. A licensed asbestos assessor inspects the building. Worth it when the question is the whole house rather than one sheet: before a renovation, before a demolition, or when you want a written answer for a sale or a purchase.

If you want to work through your own case step by step, our is it asbestos? evidence check walks through age, location, appearance, condition and extent. And tells you which of those three routes your situation lands on.

When the question is not yours to settle

Some situations skip identification entirely and go straight to a licensed professional: anything friable or crumbling, loose-fill roof insulation, material damaged by storm, fire or impact, suspected asbestos in soil. And anything in a rental property, where the decision belongs to the owner rather than the occupant. In those cases collect nothing, keep the area closed, and go to your state or territory regulator for the procedure that applies to you.

Frequently asked questions

Can anyone tell me if something is asbestos from a photo?

No. Asbestos cement and modern asbestos-free fibre cement look the same, age the same and sit in the same places, so a photograph carries only the information that cannot separate them. Identification requires a physical sample examined under a microscope by a NATA-accredited laboratory.

I have just drilled or cut into something I now think is asbestos. What do I do?

Stop work, leave the material alone and keep people and pets out of the area. Do not sweep, vacuum with a household vacuum, or hose the dust down, and do not put debris in the household bin. Material that has already been broken or has made dust is a clean-up question rather than an identification question, so contact your state or territory work health and safety regulator for the procedure that applies where you live.

Does the age of my house answer the question?

It tells you whether the question is worth asking, not what the answer is. Asbestos was phased out of fibre cement sheeting during the 1980s and all asbestos was banned in Australia from 31 December 2003, but what matters is the age of the specific material in front of you, not the age of the house. Renovations mix eras and move old offcuts into sheds, fences and benches.

Do I have to test it?

Not always. If the material is intact, painted, undisturbed and no work is planned, you can presume it contains asbestos and act accordingly, which produces the same behaviour a positive result would. A test earns its keep when something is about to be done to the material, or when a written answer is needed for a sale or a purchase.

Is fibro always asbestos?

No. Fibro is the Australian word for flat or corrugated fibre cement sheeting, and it has been made both with and without asbestos. Sheets from before the mid-1980s commonly contained it and sheets made after the phase-out do not, but both are called fibro, which is why the word on its own settles nothing.

Sources

What this page explains is based on these official sources. If you check one and it does not match what you read here, send it to us and the article gets corrected.

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