Why is mould a health risk?
Heroes Technical Team
14th September 2026
Heroes Technical Team
14th September 2026
Mould isn’t just something you want to see less of around your home. While those dark patches are frustrating to look at, mould can also affect the quality of the environment you live in.
For most of us, home is where we spend a large part of our day. This is why creating a home that feels clean, comfortable and healthy matters.
So, what actually makes mould a health concern and why is it important to tackle properly?
In this blog, we will cover:

Mould is a type of fungus that grows in damp or humid conditions. Around the home, you will often find it on walls and ceilings where excess moisture is.
As mould grows, it can release spores into your home’s environment. You can come into contact with them just by breathing them in, which is why damp and mould can particularly affect the airways and lungs. These spores can also affect the eyes and skin.
Mould isn’t something to panic about, but it’s worth keeping an eye on. For some people, exposure to mould can cause irritation such as coughing, sneezing, wheezing or itchy eyes. Children can be more sensitive to mould, particularly those with allergies or asthma, so keeping your home clean, dry and well ventilated can help create a more comfortable environment for the whole family.
This doesn’t mean that seeing a small amount of mould in your home will make you unwell. But if mould keeps returning, it can be a sign that the underlying problem hasn’t been solved. Tackling the dampness and conditions that allow mould to grow is an important part of looking after your home.
Heroes Fact
Research has shown that children who are living in damp homes are reported to be up to 3 times more likely to have breathing problems.
Mould and moisture go hand in hand as they are a normal part of everyday life at home. Without enough ventilation, that moisture can hang around and settle on colder surfaces, creating the perfect conditions for condensation.
So, what actually is condensation? It’s what happens when warm, moisture-filled air meets colder surfaces like walls, windows and ceilings. If those areas stay damp, mould has the perfect conditions it needs to make itself at home. In fact, condensation is one of the most common causes of mould in our homes.
That’s why simply wiping away visible mould isn’t always enough. You can clear what you see but if moisture, poor ventilation, a leak or another source of damp is still there, mould can soon make a comeback. If you tackle the root cause and you have a much better chance of keeping it away.
NHS NEWCASTLE HOSPITAL

As we spend a huge amount of our time indoors, especially in winter, bedrooms and living spaces get used a lot. So keeping these areas comfortable isn’t just about making them look fresh and tidy.
It’s about creating an environment where problems like mould are less likely to grow.
Good ventilation can help move moisture out of your home, while keeping rooms at a consistent temperature can help reduce condensation on colder surfaces. But there’s another part that is often overlooked: the walls themselves.
Walls that stay colder for longer can be more prone to condensation, particularly when there is warm, moist air.

When it comes to keeping mould at bay, it’s not just about dealing with what you can see. It’s about helping to tackle the conditions that help it to grow.
That’s where Heroes Shield steps in. With its Micro-Sphere Technology, Heroes Shield helps keep your walls warmer, reducing condensation build-up and creating an environment where mould struggles to develop.
So, rather than simply covering up mould, Shield helps fight off one of the key conditions that can encourage its growth in the first place.
But why stop there? Once your walls are protected with Heroes Shield, Heroes Pure can complete the Heroes system. Heroes Pure helps remove airborne pollutants, creating a fresher-feeling home for you and your family.
Heroes Shield + Heroes Pure = a home that’s ready for whatever family life throws at it.
THE HEROES TECHNICAL TEAM
Yes, they absolutley can. Mould spores are tiny and can become airborne, which means they can move through your home rather than staying in one place. That’s why it’s important to treat mould properly and look at what could be causing it in the first place.
There’s no need to panic. A small patch of mould doesn’t mean there’s a serious problem but it is worth taking notice of. Mould can be a sign that there’s excess moisture in the area, so dealing with the cause can help prevent it from becoming a bigger issue.
It can. A musty or damp smell can sometimes be a sign of mould, even if you can’t see it straight away. If you notice a persistent smell, it’s worth having a look around less visible areas where moisture may be building up.
Heroes Shield takes a different approach to traditional anti-mould paint. Instead of simply creating a paint designed to resist mould, its Micro-Sphere Technology helps keep walls warmer and reduce condensation build-up.
No. Heroes Pure isn’t a mould treatment. It’s an air-purifying paint made to reduce airborne pollutants in your home.
If you already have mould, it should be properly treated and removed before decorating. Heroes Mould Remover is the first step, helping to clean mould and mildew from suitable hard, colour-fast surfaces. Once the mould has been removed and your walls are clean and ready.