Whenever we purchase property, we’re looking at obvious things like whether it’s sound, has decent plumbing and electrical, and isn’t part of the leaking home crisis we hear so much about. However, people are starting to consider more than the most obvious issues, such as radon and asbestos.

Even though these two things are not related, they can certainly be worth thinking about during your next property purchase. Although, radon may be less of a concern in New Zealand than you might think.

What is Asbestos?

Asbestos a fibrous mineral found in rocks and soil. Because it’s resistant to electricity, chemicals, and heat, it was seen as a desirable material for manufacturing. Therefore, it was commonly used in construction materials, textiles, automotive parts, and more.

In the average home built before the year 2000, you can find asbestos in plaster compounds, roofing, flooring, electrical wire casings, ceilings, window panels, gutters, insulation, and more. The problem is, it has since been identified as a deadly mineral that’s responsible for tens of thousands of deaths annually.

When the building materials break down, asbestos fibres are released into the air. Once inhaled, they can be responsible for health conditions like mesothelioma, cancer, asbestosis, and more.

Fortunately, unless you disturb the building materials in your home, or they become damaged, they are low-risk. If you have found asbestos in your home or believe it’s present, consult an asbestos removal company in NZ for advice.

They may recommend testing followed by encapsulation or removal to ensure your home is safe for all those residing within it.

What is Radon?

Even though most people wonder whether their house contains asbestos, a select few are also concerned about the presence of radon. According to the Ministry of Health NZ, radon is a radioactive gas sometimes found in high levels overseas. In New Zealand, it is only found in low levels.

Radon is colourless and odourless and is present in soils in most parts of the world. Unlike asbestos, it’s not used in the manufacturing of any materials, which is good news for homeowners who may have thought they had one more thing to worry about when purchasing a new home. 

However, it’s worth being aware of where it’s commonly found in New Zealand and whether or not it’s a cause for concern. If radon is present in the soil around your home, then there’s a high chance that it’s also present in your home. Once your house contains radon, it’s there for good.

Fortunately, low levels like those we see here in NZ are harmless. Exposure to high levels can increase your risk of lung cancer. In fact, it’s the second leading cause of lung cancer.

Should We Be Worried About Radon in Our Homes?

Current evidence in New Zealand suggests that there are no radon hot spots to be a cause for concern. Two surveys have been carried out in recent years, including one in 1988 and another in 2016.

In the latest survey, which focused on properties in Auckland, Wellington, Christchurch, and Dunedin, the average national median radon concretion was found to be 23 Bq/m3. This is only slightly up from the survey findings in 1988, which was reported as 18 Bq/m3.

It’s also worth being aware that our soils generally only contain trace amounts of radium and uranium, which are the sources of radon. We get around half our natural radiation dose from radon and the rest from cosmic radiation, our bodies, natural soil radioactivity, and building materials.

Going by the best evidence available – no, we don’t need to be worried about radon in our homes.

Should We Be Worried About Asbestos in Our Homes?

In a single word, yes. We should be worried about asbestos in our homes, but only if it’s in poor condition or you’re about to undertake renovations.

Asbestos within building materials that remain undisturbed do not release fibres into the air in most cases. However, suppose you will be removing roofing materials, lifting flooring, and even altering walls in a pre-2000 home. In that case, it can be worth requesting asbestos testing for peace of mind before you start.  

If asbestos is confirmed as being present, you’ve got a few options at your disposal. With the right safety gear and knowledge, you can remove up to 10m2 of non-friable asbestos on your own. If the asbestos is friable or within materials larger than 10m2, you will need a trained, licensed asbestos removalist to manage it for you.

Fear Asbestos More Than Radon

Even though radon is to be feared in countries with high levels, we’re reasonably safe here in New Zealand. However, it’s essential to be informed about all potential risks around and in your home.

While radon may not be on your radar, asbestos could be. If you have any queries or concerns, contact an asbestos removal company for help.