Asbestos has become one of the most notorious building materials of the 20th century due to its severe health risks. In New Zealand, many homes built before the 1990s still harbour this silent threat, particularly in insulation materials. At Chemcare, we are dedicated to educating the public about asbestos dangers and ensuring safe asbestos removal.

The history of asbestos in insulation

Asbestos was widely used in New Zealand’s construction industry from the 1930s until the late 1980s. Its fibrous nature, heat resistance, and affordability made it a popular choice for insulation in homes, commercial buildings, and industrial facilities. Asbestos-containing insulation was used in various forms, including loose-fill insulation, spray-on insulation, and asbestos lagging on pipes and boilers.

Some of the common types of asbestos-containing insulation found in NZ homes include:

1.       Loose-fill insulation – often found in older homes, this type of insulation was made from pure asbestos or mixed with other materials. The fibres could be easily disturbed, leading to airborne contamination.

2.       Spray-on insulation – frequently used in commercial and industrial buildings, spray-on asbestos insulation was applied to walls, ceilings, and structural beams for fireproofing and thermal insulation.

3.       Asbestos lagging – this was used to insulate pipes, boilers, and ducts. The lagging often involved wrapping asbestos-containing materials around pipes to prevent heat loss.

Despite its widespread use, the health risks associated with asbestos were gradually recognised its widespread use, the health risks associated with asbestos were gradually recognised, leading to a phased ban in New Zealand starting in the mid-1980s. By the year 2000, the use of all asbestos-containing materials was banned in New Zealand, but the legacy of its use remains in many buildings today.

Health risks of asbestos in insulation

Asbestos fibres, when disturbed, can become airborne and pose serious health risks. Inhalation of these microscopic fibres can lead to severe lung conditions, including asbestosis, lung cancer, and mesothelioma, a rare and aggressive form of cancer that affects the lining of the lungs, abdomen, or heart.

One of the major concerns with asbestos in insulation is its potential to release fibres over time, especially during renovation, repairs, or when the insulation becomes damaged. Homeowners might unknowingly disturb asbestos-containing insulation while attempting to upgrade their properties, putting themselves and their families at risk.

Key health risks include:

·       Asbestosis – a chronic lung disease caused by the inhalation of asbestos fibres. It leads to scarring of lung tissue, resulting in breathing difficulties and reduced lung function.

·       Lung cancer – prolonged exposure to asbestos fibres significantly increases the risk of developing lung cancer, particularly in individuals who smoke.

·       Mesothelioma – this is the most severe health risk associated with asbestos exposure. Mesothelioma has a long latency period, often taking decades to develop after initial exposure, and is almost exclusively caused by asbestos.

Identifying asbestos in insulation

Identifying asbestos-containing insulation is not always straightforward. Asbestos fibres are microscopic and cannot be seen with the naked eye. Therefore, it is crucial not to disturb any material suspected of containing asbestos. The only way to confirm the presence of asbestos is through professional testing by a licensed asbestos removal company.

Here are some signs that your insulation may contain asbestos:

·       Age of building – homes and buildings constructed before the 1990s are more likely to contain asbestos insulation

·       Type of insulation. -if your home has loose-fill, spray-on, or pipe-lagging insulation, it may contain asbestos. Older homes with vermiculite insulation are also a concern, as this material was often contaminated with asbestos.

·       Deterioration – if the insulation is crumbling, fraying, or damaged, it increases the risk of asbestos fibres becoming airborne.

If you suspect that your home contains asbestos insulation, it is essential to act with caution. Do not attempt to remove or disturb the materials yourself.

Safe asbestos removal

The removal of asbestos-containing insulation is a complex process that should only be handled by licensed professionals. At Chemcare, we follow strict protocols to ensure safe and effective asbestos removal.

 Protecting your family and property

Asbestos in insulation is a serious issue that should not be ignored. Whether you are planning renovations or simply want peace of mind, it is crucial to have your property assessed by professionals. At Chemcare, we are committed to helping New Zealand homeowners protect their families from the dangers of asbestos.

If you suspect your home may contain asbestos insulation, contact us today. Our experienced team is here to guide you through the process and ensure your property is safe for years to come.

Asbestos in insulation poses a significant health risk to homeowners, particularly in older properties. Understanding the dangers and taking the appropriate steps for identification and removal is essential for maintaining a safe living environment. Chemcare provides expert asbestos removal services across New Zealand, ensuring that your home is free from these hazardous materials. Don’t wait until it’s too late – act now to safeguard your health and your home.