Fascinating Facts About Asbestos Every Homeowner Should Know; Eye-Opening Facts About Asbestos Every Homeowner Should Know
identifying asbestos
Asbestos containing materials come in all shapes, sizes and colours. There are mostly three types of raw asbestos used in NZ — blue, brown and white asbestos, and all were used in many building products. Asbestos was often mixed with other materials so it is virtually impossible to identify by eye whether or not it is present in suspect materials. The only way to be certain if your home contains asbestos is to have materials tested in an accredited laboratory. Do not attempt to obtain a sample without talking to the laboratory first.
Asbestos containing materials were a common building product from the 1940’s through until the 1990’s. Because asbestos is fire, heat, chemical and noise resistant as well as providing added strength to otherwise brittle materials (such as cement) it was widely used. In some instances it was used earlier than 1940, such as in lathe and plaster. From 1 October 2016 imports of products containing asbestos are banned.
A large proportion of buildings built or renovated during the 1940s to 1990s will contain some asbestos materials, however some houses built after this era may also.
Asbestos can be found in:
· asbestos cement products (pipes, flues, roofs etc)
· wall cladding (fibrolite)
· lagging (on pipes and boilers etc)
· water tanks
· asbestos insulating board
· sprayed coatings on ceilings, walls and beams / columns
· textured decorative coatings, flat and stippled plaster
· vinyl flooring and backing
· textiles and composites
· gaskets and ropes (such as on wood burners)
· lathe and plaster
· mastics and sealants
· damp proof courses (malthoid)
·
However, you may also be concerned that there are traces of asbestos in your soil as a result of historic or accidental dumping or burying. For guidance on contaminated land and how to manage this risk visit www.contamland.co.nz.
If testing confirms that there is asbestos present in your soil than you should talk to a suitably Qualified and Experienced Practitioner (SQEP) for guidance.
Are you starting renovations or repairs on your property and worried about the risk of asbestos? Asbestos Aware will help you identify what asbestos could look like, where it could be found and how it should be dealt with.
Asbestos is a health hazard to you and your family if you inhale the very fine fibres that can be created when you damage or disturb materials that contain asbestos. If you, or any contractors you use, don’t plan work carefully and take appropriate precautions, you may spread contamination. This can settle on carpets, drapes and soft furnishings and become airborne at a later date. Don’t expose yourself and your family to this risk.
Asbestos is a health hazard. Disturbing or damaging asbestos can loosen fibres that can be inhaled through your lungs. Once asbestos fibres are in the air, they can easily spread through your home. Don’t expose yourself and your family to this risk. Plan your work carefully and make sure your contractors are aware of the asbestos risks and appropriate controls for asbestos removal work. Make sure your contractors are appropriately licenced.
This was originally developed specifically for Greater Christchurch after the 2010/11 earthquakes and subsequent rebuild, but the information has been updated so it is relevant for anyone in New Zealand undertaking or commissioning residential work that may involve disturbing asbestos containing materials.
Please note the Regulations around working with asbestos changed on 4 April 2016. For more
Testing for asbestos
The only way to be certain if your home contains asbestos is to have suspect materials tested in an accredited laboratory. Do not attempt to obtain a sample without talking to a laboratory first.
For a full list of accredited testing facilities all across New Zealand visit ianz.govt.nz and search for keyword 'asbestos', and click 'Go'.
You can also contact the Health Protection Team working in the Public Health Unit of your District Health Board if you want to find out about approved testing laboratories in your region.
managing asbestos
If testing has confirmed the presence of asbestos in your home and you are starting renovation, demolition or repair work, you can:
· Leave it undisturbed if it is in a good stable condition and won’t be impacted by the renovation work or
· Engage an asbestos licence holder to put in place other options for dealing with asbestos such as sealing, encasing or complete removal.
Asbestos left undisturbed, in good condition or sealed is relatively safe – but if it is easily crumbled, broken down, or damaged or if you intend to drill it, sand it or break it up, it can be harmful and needs specialist attention.
Asbestos Aware strongly advises you to use professional asbestos removal companies to undertake the removal, transportation and disposal. They are fully trained and equipped to complete this work and to manage the clean-up. Residue from asbestos left in your home can cause health issues in the future – that’s why it’s so important to be asbestos aware.
There are certain types of work with asbestos containing materials that by law can only be carried out by a licence holder and their nominated supervisors or removal workers. WorkSafe manages the licensing scheme, under the Asbestos Regulations 2016.
There is a transitional plan in place for these operators who hold a Certificate of Competence for Restricted Work with Asbestos under the old legislation. This means those certificate holders can operate as an asbestos licence holder until 4 April 2018 or when their certificate expires - whichever comes first.
See the WorkSafe website for a full list of licence holders.
You can also view Certificate of Competence holders here.
Certified contractors should follow approved methods for removal. You can find out more about this methodology and what to expect from the removal company by downloading the fact sheets on this page.
After safe removal and disposal you can expect your contractor to complete the following as a final clean up in your home:
· Vacuum residue and dust from all surfaces (including unsealed drawers and cupboards) using a vacuum cleaner fitted with a HEPA filter.
· Wet wiping after vacuumin
risk
Asbestos is a health hazard, although the risk to you and your family is very low from short-term low-level exposure in the home. Asbestos creates a health risk only if it is disturbed or broken up and fibres are released into the air. Don’t expose yourself and your family to this risk.
Asbestos-related diseases generally occur in workers who have had heavy exposure over extended periods of time. Short-term high exposure can sometimes happen during home renovation or maintenance involving materials which contain asbestos. It is always best to avoid exposure as much as reasonably possible.
All types of asbestos fibres are known to cause serious health hazards in humans. There are a number of diseases that can be related to breathing in asbestos fibres, including:
· Asbestosis (scarring of lung tissues)
· Mesothelioma (malignant cancers developing around the linings of either the chest or the abdominal cavities)
· Lung cancer
· Pleural plaques (thickening of membranes around the lungs which may or may not lead to further disease, and leading to varying degrees of debilitation).
By using a certified contractor to remove and correctly dispose of the asbestos you can avoid the unnecessary danger of exposing your family to the risk.
disposal
Asbestos is a hazardous waste and must be disposed of correctly.
Asbestos waste must only be disposed of at an approved local authority refuse site. It must not be sold or re used. It must be removed from the construction area to an approved refuse site as soon as possible. Incorrect disposal of asbestos waste is prohibited and can result in a fine or prosecution.
WorkSafe has a regularly updated list of New Zealand sites consented to accept asbestos waste. Asbestos cannot be taken to the site without prior arrangement and must be packaged correctly for disposal.
Asbestos must be transported and delivered in a safe and secure manner. Asbestos Aware strongly advises you to use experienced asbestos removal companies to undertake the removal, transportation and disposal of asbestos from your home.
Asbestos specialists should follow approved methods for storage, transport and disposal, such as:
· Placing asbestos into closed containers that are impermeable to asbestos dust.
· Using bags no bigger than 1200 mm x 900 mm, and only half-filling them.
· Being careful when letting excess air out so that asbestos dust is not released.
· Double-bagging materials in case of bags rupturing during handling and transport.
· Sealing the bags or sheets well to prevent asbestos dust from escaping.
· All asbestos waste must be sealed in plastic bags (200µm thick) and labelled “Asbestos hazard - wear respirator and protective clothing while handling contents”.
Fascinating Facts About Asbestos Every Homeowner Should Know
For many, asbestos is just a scary word, but there’s a lot to know about this once-popular material that found its way into thousands of homes across New Zealand and around the world. If you’re a homeowner, especially in an older property, understanding asbestos can help you manage its risks and keep your home safe. Here are some surprising, important, and downright fascinating facts about asbestos!
1. Asbestos is a Natural Mineral Found All Over the World
Believe it or not, asbestos isn’t a man-made material. It’s a natural mineral mined from rock formations, where it’s found in fibrous forms. There are six types of asbestos, with chrysotile (white asbestos) being the most common type used in building materials.
2. Once Known as the “Magic Mineral”
In the early 20th century, asbestos was celebrated for its incredible resistance to heat, fire, and chemicals. It was often called the “magic mineral” due to its versatility and durability. Asbestos fibers were woven into fire-resistant fabrics, added to cement, and even used in paints. The material’s heat-resistance capabilities made it invaluable in construction and various industries—until its dark side was uncovered.
3. Common Asbestos Hiding Spots in Homes
Asbestos can hide in places you wouldn’t expect. Many homes built before the 1980s in New Zealand contain asbestos in areas like:
- Roofing and siding materials
- Textured ceilings and walls
- Vinyl floor tiles and adhesives
- Pipe insulation and ductwork
- Electrical panels and insulation boards
If you’re living in an older home, especially one that hasn’t been renovated, these materials may still be in place.
4. New Zealand Banned Asbestos in 2016—But It’s Still in Many Homes
New Zealand officially banned the import and use of asbestos in October 2016. However, materials containing asbestos can remain in buildings where they pose a potential hazard if disturbed. Homeowners should be aware of this and handle any renovations with caution.
5. Why Asbestos is Hazardous to Health
The danger of asbestos lies in its microscopic fibers. When disturbed, these tiny fibers can become airborne, and if inhaled, they can cause serious diseases, such as:
- Asbestosis: Scarring of the lungs that causes breathing issues.
- Mesothelioma: A rare, aggressive cancer affecting the lining of the lungs, abdomen, or heart.
- Lung Cancer: Caused by prolonged exposure to asbestos fibers.
Symptoms of asbestos-related diseases can take years—even decades—to appear, making early exposure especially dangerous.
6. Asbestos Removal Must Be Done by Professionals in New Zealand
If you’re planning on removing asbestos from your home, you’re required by law to hire licensed professionals for friable asbestos and certain amounts of non-friable asbestos. WorkSafe New Zealand has strict guidelines for asbestos removal, ensuring that it’s done safely to minimize health risks.
7. Testing for Asbestos: Essential for Safe Renovations
Thinking about renovating? Before tearing down walls or replacing ceilings, it’s crucial to have your home tested for asbestos. Asbestos testing involves taking small samples of suspect materials, which a licensed laboratory then analyzes. Testing costs vary but generally range from $100 to $400, depending on the number of samples taken.
8. Asbestos Can Be Found in Everyday Household Items
Asbestos was used in more than just construction materials; it appeared in everyday products, too! Some surprising items that contained asbestos include:
- Hairdryers and appliances (for heat resistance)
- Oven mitts and ironing boards
- Children’s crayons (in the pigments)
While these products have mostly been removed from the market, older items can still contain asbestos, so caution is advised when handling vintage appliances or goods.
9. Asbestos in Soil: A Hidden Risk
Did you know asbestos can also be found in soil? When old buildings containing asbestos are demolished without proper precautions, asbestos can end up contaminating the surrounding soil. This hidden hazard is particularly concerning for gardens and playgrounds near older construction sites.
What Homeowners Should Do If They Suspect Asbestos
If you think there may be asbestos in your home, follow these steps to ensure safety:
- Avoid Disturbing Suspect Areas Don’t drill, sand, or cut into materials you suspect contain asbestos. Disturbing asbestos can release dangerous fibers into the air.
- Hire a Professional Asbestos Surveyor Get a licensed surveyor to inspect your home. They can confirm whether asbestos is present and recommend next steps.
- Plan for Safe Removal if Necessary If asbestos removal is needed, use a licensed asbestos removal company. They have the equipment and training to handle asbestos safely and in compliance with New Zealand’s regulations.
- Keep Records If you’re planning to sell your home, having records of asbestos inspections and removal work can reassure potential buyers that your home is safe.
Wrapping Up
Understanding asbestos and its risks is essential for New Zealand homeowners, particularly those living in older homes. From its surprising history to its widespread use, asbestos remains a critical safety concern. If you suspect asbestos in your home, don’t take chances—get it checked by professionals. Keeping informed about asbestos is the first step in ensuring a safe, healthy environment for your family.
Eye-Opening Facts About Asbestos Every Homeowner Should Know
Asbestos is often shrouded in mystery and fear, but this natural mineral has a fascinating history. For homeowners, especially those with older properties, understanding asbestos can be the difference between a safe home and a potential hazard. Here are some essential, surprising, and interesting facts about asbestos that every homeowner should know.
1. Asbestos Is a Naturally Occurring Mineral—and It’s Been Around for Ages
Asbestos isn’t synthetic; it’s a group of naturally occurring minerals found in rock formations around the world. Historically, asbestos has been used for thousands of years, dating back to ancient civilizations like the Greeks and Romans, who used it in cloths and candle wicks due to its fire-resistant properties.
2. Nicknamed the “Miracle Mineral” for Its Heat-Resistant Properties
In the 20th century, asbestos was prized as a “miracle mineral.” Its resistance to heat, fire, and chemicals made it an ideal material for a wide range of applications, from building insulation to brake linings. Asbestos fibers were blended into cement, flooring, insulation, and even fabrics—making it an indispensable part of construction, especially in the mid-1900s.
3. New Zealand Homes Are More Likely to Have Asbestos if Built Before the 1980s
If your New Zealand home was built or renovated before 1980, there’s a high chance asbestos is present. Asbestos-containing materials (ACMs) were commonly used in:
- Roofing materials (like decramastic tiles and corrugated sheets)
- Wall cladding and cement sheeting
- Pipe and boiler insulation
- Vinyl flooring and adhesive backing
- Textured ceilings and spray-on coatings
Knowing these common asbestos hiding spots can help you identify potential hazards, especially before any renovations or demolitions.
4. Asbestos Was Officially Banned in New Zealand in 2016
New Zealand didn’t completely ban asbestos until October 2016. The ban covers the importation, use, and supply of asbestos-containing materials. However, asbestos already installed in homes remains in place, meaning many properties still have asbestos materials that need careful management.
5. Asbestos Becomes Dangerous When Disturbed
In its solid, undisturbed state, asbestos is relatively harmless. However, once disturbed, asbestos fibers can become airborne and inhaled, which is when the real danger begins. These microscopic fibers lodge in lung tissue, where they can lead to severe respiratory illnesses over time, including:
- Asbestosis: Scarring of lung tissue, causing difficulty breathing.
- Mesothelioma: A rare cancer affecting the lung and abdominal lining.
- Lung Cancer: Strongly linked to asbestos exposure, particularly in smokers.
6. DIY Asbestos Removal Is Not Recommended—And Often Illegal
For homeowners considering DIY projects, handling asbestos is risky and illegal in many cases. New Zealand’s WorkSafe regulations only allow homeowners to remove up to 10 square meters of non-friable asbestos (like bonded asbestos cement) themselves. For anything more extensive—or any friable asbestos—you’ll need a licensed professional. Attempting DIY asbestos removal can result in fines, health risks, and potential contamination of your home.
7. Asbestos Is Not Just in Building Materials
Surprisingly, asbestos wasn’t limited to construction. Many household items also contained asbestos, including:
- Hairdryers and heat-resistant appliances
- Ironing board covers and oven mitts
- Vintage toys and crayons
If you’re handling older household items or vintage goods, be aware that asbestos may be present.
8. Testing for Asbestos Is Essential Before Renovating or Demolishing
If you’re planning any renovations, particularly in homes built before 1980, it’s crucial to have your property tested for asbestos. Licensed asbestos surveyors can collect samples from materials like roofing, flooring, and insulation, and have them analyzed in a lab. Testing costs in New Zealand range from about $100 to $400 per sample, depending on the complexity of the job.
9. Proper Disposal of Asbestos Waste Is Legally Required
Asbestos waste isn’t just tossed in the bin—it’s considered hazardous and requires special handling. Once asbestos is removed, it must be double-bagged, sealed, and labeled before being disposed of at a licensed asbestos landfill. Professional asbestos removal services handle disposal in compliance with WorkSafe NZ requirements to prevent contamination and health risks.
10. Asbestos Still Lingers in Soil Near Demolished Buildings
A lesser-known risk of asbestos exposure comes from soil contamination. If buildings containing asbestos were demolished without following proper protocols, asbestos fibers may linger in the surrounding soil. This can pose a risk if the soil is disturbed, such as during gardening or landscaping, as the fibers may become airborne and inhaled.
What Should You Do If You Suspect Asbestos in Your Home?
If you think asbestos might be present in your home, take the following steps to ensure safety:
- Avoid Disturbing the Material Don’t cut, drill, or sand suspected asbestos-containing materials. Disturbing them can release fibers into the air.
- Arrange an Asbestos Survey Contact a licensed asbestos surveyor to inspect and test the materials in question. They can confirm whether asbestos is present and advise on next steps.
- Plan for Safe Removal if Necessary If asbestos needs to be removed, hire a licensed asbestos removalist. Professionals have the training and equipment to handle asbestos safely, in line with legal requirements.
- Document Asbestos Testing and Removal Keep records of any asbestos surveys and removal work. This documentation may be useful if you ever decide to sell the property.
Final Thoughts
Understanding asbestos and its risks is essential for New Zealand homeowners, especially those with older homes. Knowing where asbestos might be hiding, why it’s dangerous, and how to handle it responsibly is key to maintaining a safe, healthy home. By taking the right precautions, you can manage asbestos hazards effectively and ensure peace of mind.