What causes mould to grow in your home or building?

by | Sep 22, 2020 | Mould

High Humidity

If the air inside your home remains humid for several days or months you may notice mould growing in your home. Especially during the winter months when the warm interior air condenses on the much cooler interior surfaces throughout the home or building.

Lack of air flow

If your furnace is not continuously circulating the indoor air and mixing the colder air with the warmer air above, it can create pockets of warm stale air inside the house or building, during the furnace fan’s cycling. Purify Enviro Group recommend the fan of the furnace remain set to “ON” position on the thermostat and not in the “AUTO” setting.

Exhausting the warm humid air

Properly exhausted bathrooms, kitchens, and other humid rooms in the house or building are necessary to achieve a healthy environment.

Plumbing Leak

Leaking pipes that go undetached tend to the worst because they are out of sight and by the time the leak has been detected mould colonies are already likely growing and have rooted into the building materials.

Lack of Cold Air Returns in the basement or lower level

Cold air returns, at floor level, are extremely important in the basement or lower level of a hose or building to help mix and exchange the cooler air that settles with the warmer air above it. Without proper cold air returns in the basement or lower level of a home or building the cold air is not exchanged or circulated creating a musty smell.

Damp Basement

Basement often contain higher levels of moisture and humidity compared to other rooms within the house or building contributing to mould growth and a musty odour.

Foundation Cracks

Allow ground water to enter the basement creating ideal conditions for mould growth. Undetected foundation cracks, in finished basements, create an ideal environment for mould growth in areas such as exterior concrete walls, wood framing materials, insulation, vapour barrier, paneling, drywall, and concrete floors.

Foundation Grading

If the grade around your home or building slopes towards the property, rainwater and snow melt are diverted towards the foundation instead of being diverted away from the walls and can end up entering the basement through cracks or seepage through the porous concrete foundation walls. Ditches and trenches can be dug if re-grading is not an option due to neighbors, property lines, or other restrictions.

Basement Flooding

Due to the fact that mould only needs a suitable surface to remain wet for 24 hours, mould is almost guaranteed in a basement after a flood. If surfaces and building materials in the basement remain wet for several days, it creates an environment for some dangerous black toxic moulds to grow which require these extreme conditions to grow. The most common being Stachybotrys Chartarum, putting your home and health at risk.

Wet Clothes

A pile of clothes left in your home can grow mould on them as well as other surfaces because of the moisture and mould spores it releases into the environment. Damp clothes left unattended for more than a day can develop mould. Alternatively, clothes left wet after being washed for more than a day may develop mould as well.

Roof Leaks

A roof leaking into the attic may go unnoticed until there is visible mould and/or interior ceiling damage. Purify Enviro Group recommends the attic be inspected regularly for water infiltration and any signs of water, on any interior ceiling, should be investigated for mould growth.

Do you have mould concerns? Let one of our mould experts reach out to you. Let’s Chat.

What Is Mold Be Gone?

Mold Be Gone Logo

Mold Be Gone is a non-toxic formulation designed to kill mould, viruses and bacteria. Mold Be Gone should be sprayed on surface mould before attempting to clean it, and after to prevent the re-growth or formulation of mould. It is safe for humans and pets.

Mould can be particularly difficult in porous materials where the roots can take hold and attempts to clean without killing, can make the mould growth back even stronger.

Mold Be Gone is particularly effective in washing machine rubber gaskets, dishwashers, bathroom grout and silicone, wood, fabrics and drywall. Mold Be Gone can be sprayed on surfaces, sprayed into cold air returns and diffused into the environment.

Mold Be Gone Bottle