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Silicone sealants are a common sight in Australian homes. They’re used for a variety of purposes, from sealing windows and doors to preventing leaks in bathrooms. However, if you’ve ever spotted mould growing on your silicone sealant, you’re not alone. Mould growth in silicone sealants is a persistent problem that many Australians face.

Mould thrives in damp and humid environments, which makes bathrooms and kitchens its perfect hideaway. Silicone sealants, which are water-resistant by nature, can still develop mould when conditions are just right.

In this article, we’ll explore the common causes of mould growth in silicone sealants and provide you with practical ways to prevent it. Check out which of these problems might be hiding in your home, and find out the easy steps to keep your place free from mould.

Poor Ventilation

Inadequate ventilation is a primary cause of mould growth in silicone sealant. Bathrooms, in particular, tend to become steamy environments during and after showers. If there’s no efficient ventilation system in place, the moisture lingers and provides mould with an ideal breeding ground.

How to Prevent It: Make sure to use exhaust fans and open windows to encourage air circulation that removes excess moisture. This simple step can make a big difference in mould prevention. Proper ventilation not only keeps your living spaces fresh but also plays a critical role in maintaining a mould-free home.

Water Splashes

When water splashes frequently onto silicone sealant, it creates an environment that mould loves. Areas near sinks and showers are especially vulnerable. The constant moisture weakens the sealant and promotes mould growth.

How to Prevent It: Be mindful of water splashes and use bathmats or towels to absorb excess water. Place bathmats or towels strategically in areas prone to splashing, such as in front of sinks or showers. Also, make sure to choose the best sealant for your shower and regularly wipe it down to keep it dry.

Silicone Sealant Age

Over time, silicone sealants can deteriorate and lose their water-resistant properties. As they age, they become more susceptible to mould infestation because the barrier they once provided against moisture weakens. This makes it easier for mould spores to find a place to grow.

How to Prevent It: Periodically inspect your silicone sealant for signs of ageing, such as cracking or peeling. This visual check can alert you to any vulnerabilities that may lead to mould growth. In addition, when you notice that your sealant is showing signs of wear and tear, don’t hesitate to replace it.

Poor Quality Sealants

Using subpar silicone sealants can also lead to mould issues. Cheaper options may not have the same level of resistance to moisture and mould. On the other hand, investing in a high-quality silicone sealant can go a long way in preventing mould growth.

How to Prevent It: Look for products that are specifically designed for wet areas to ensure their longevity. High-quality sealants are formulated to resist moisture and mould growth more effectively.

Organic Debris Accumulation

Organic materials, such as soap residue, can build up on the surface of silicone sealants. When this happens, it creates an environment that mould finds particularly inviting. Mould thrives on these organic substances, as they provide a ready source of nourishment and make it simpler for mould to settle in and start growing.

How to Prevent It: Regular cleaning is the foundation of mould prevention. Use a mild detergent and a soft brush to scrub away any residue, and ensure that the sealant remains free from organic matter.

High Humidity Levels

Australia’s weather changes depending on where you are, and in many places, it’s quite humid, which means the air holds a lot of moisture. What makes this an issue is that too much humidity isn’t good for dealing with mould. It can make mould problems worse because mould likes dampness. So, when the air is always wet, it’s perfect for mould to grow easier.

How to Prevent It: Investing in a dehumidifier can help in keeping humidity levels in check. Additionally, try to maintain a consistent indoor temperature to discourage mould growth.

Inadequate Maintenance

When you neglect the upkeep of your silicone sealant, you’re essentially setting the stage for its decline. Just like any part of your home, your sealant requires attention and care to stay in good shape. If you disregard its maintenance needs, the consequences can be harmful. Over time, the sealant may weaken, become more susceptible to damage and, potentially, lead to mould issues.

How to Prevent It: Inspect your sealant regularly, looking for any signs of damage or mould growth. Promptly address any issues you find. Small repairs and preventative measures can save you from the hassle of extensive mould removal.

Check out our article on What Not To Caulk and Repairing Leaking WIndows: A Comprehensive Guide.

When Do You Need Professional Mould Removal Services?

In cases of extensive or health-threatening mould infestations, the expertise of professional mould removal services is essential. These specialists possess the knowledge, equipment and safety measures necessary to address severe mould problems. They not only remove the mould but also address the underlying causes to prevent its return.

When choosing a mould removal company, look for credentials, experience, references and transparency. The removal process typically involves assessment, containment, removal, prevention, testing and guidance on preventative measures. Professional mould removal services offer a comprehensive solution to safeguard your home and health.

Wrapping Up

Mould growth in silicone sealant is a common issue that many Australians face, but with the right knowledge and preventive measures, you can keep your home mould-free. Remember to keep your spaces well-ventilated, invest in quality sealants, maintain a cleaning routine and be vigilant about repairs. By taking these steps, you can ensure that your silicone sealant remains clean and mould-free for years to come. Enjoy a healthier, mould-free home!