Mould is one of the most common problems homeowners face, yet it’s widely misunderstood. This complete guide covers everything you need to know: what mould is, how and where it grows, the health effects it causes, and the smartest way to deal with it. Whether you’re facing a small patch or a bigger infestation, this guide will help.
What Is Mould?
Mould is a type of fungus that grows in multicellular filaments and reproduces through tiny airborne spores. These spores are everywhere, indoors and out, and they only become a problem when they land on a damp surface and begin to grow.
How Does Mould Grow?
Mould needs three things to thrive: moisture, a food source such as wood or drywall, and time. Given a damp surface, it can begin growing within 24 to 48 hours, which is why controlling moisture is so important.
What Does Mould Look Like?
Mould can appear fuzzy, slimy, or powdery, in colours ranging from green and black to white, grey, or orange. It’s often mistaken for dirt or staining, which allows it to spread unnoticed.
Mould vs Mildew
Mildew is a surface-level mould that stays flat and light-coloured, while true mould grows deeper into materials and tends to be darker and raised. Mould is generally the more serious of the two.
Identifying Black Mould
Black mould is dark green to black and often slimy, typically growing on constantly damp surfaces. It’s associated with more serious health effects and should be handled with care.
Different Types and Levels of Mould
Moulds are grouped as allergenic, pathogenic, or toxigenic, in increasing order of danger. Beyond the type, the level or extent of contamination matters too. A small patch is very different from widespread growth covering large areas or hidden inside walls.
Where Does Mould Grow?
Mould favours damp, poorly ventilated spaces such as bathrooms, basements, kitchens, attics, and anywhere that has suffered water damage. It also hides behind walls, under flooring, and around leaking pipes.
Health Effects of Mould
Exposure can cause allergic reactions, respiratory irritation, headaches, and worsened asthma. Toxic moulds can lead to more serious symptoms, and vulnerable groups like children, the elderly, and those with weakened immune systems are most at risk.
Mould Removal vs Mould Remediation
Removal refers to physically taking mould away, while remediation is the broader process of addressing the moisture source, containing the area, removing the mould, and preventing its return. True remediation solves the underlying problem, not just the visible symptom.
DIY or Professional Mould Removal?
Small surface patches can sometimes be cleaned yourself with proper protection and ventilation. However, larger infestations, hidden mould, or toxic varieties call for professional help to ensure the job is done safely and completely.
Mistakes to Avoid
Never Use Bleach
Bleach may lighten mould on the surface but doesn’t kill it in porous materials, and it can even add moisture that helps mould return.
Never Paint Over Mould
Painting over mould only hides it temporarily. It will continue to grow beneath the paint and resurface later, often worse than before.
The Professional Removal Process
Professionals follow a proven sequence: assessing the mould and its moisture source, removing water and contaminated materials, thoroughly drying and cleaning the area, and finally restoring it while taking steps to prevent recurrence.
Mould Prevention and Testing
Prevention comes down to keeping your home dry and well-ventilated, fixing leaks quickly, and controlling humidity. Testing is worthwhile when you suspect hidden mould or want to confirm an area is clear after remediation. For any of this, the certified team at Mold Removal Winnipeg is ready to help.
