Ceiling Condensation is a common problem homeowners face and should be addressed promptly; excess moisture can eventually cause mold and mildew to form — quickly escalating a small problem into a much larger and potentially dangerous ordeal.
Humidity problems occur when warm, moisture-laden air interacts with a cool ceiling, causing condensation and subsequent interior mold growth. Liquid moisture problems are due to direct liquid water exposure, i.e. plumbing failures, roof leaks, etc. Occasionally the mold growth is due to a combination of both factors.
Use soda or vinegar. The other alternative is to use soda or vinegar on your mould. H&G recommend dissolving 18 grams of soda in 3 litres of water and then using a stiff brush to remove the mould. If using vinegar instead, use a dash of vinegar in 1 litre of water and apply with a cloth or spray bottle.
A damp area that becomes discolored can also be an early sign of mold on the ceiling. Mold can also have a musty, earthy, or damp smell that sometimes precedes the visual signs of mold growth.
High levels of humidity or dampness in the home leads to black mould growth on walls and ceilings. Depending on the moisture involved, bedroom mould often begins in the corners of the room, where condensation is collected as it tries to exit the home. Poor ventilation is usually the cause.
When it develops, these toxic mold spores can trigger allergies. It can also make existing respiratory conditions, such as asthma, worse. Worst of all, mold can slowly eat away at your ceiling tiles.
Mold stays “dormant” in the air or on surfaces even when there's no excess moisture to help it grow. If the humidity in a room increases, mold will start growing in patches on walls, clothes, and more. So, to answer your question, dehumidifiers do NOT kill mold, but they do prevent it by reducing humidity.
Mildew is a surface fungi identified as a patch of gray or white fungus lying on the surface of a moist area. Mildew is easily treated with a store-bought cleaner and a scrubbing brush. Mold, on the other hand, can have colors that range from black to green and is often the result of a much larger infestation.
How Fast Does Mold Grow? Generally, mold can grow significantly within 24 to 48 hours after water damage. Mold can take hold of your home and grow rapidly within 12 days if it has the ideal conditions it needs to thrive.
So how do you know which one you're dealing with? Mold generally looks slimy or fuzzy, tends to have a raised texture, and can come in a rainbow of colors, including deep green and black. Mildew is powdery, looks white or gray, always appears flat, and grows on surfaces.
Ceiling condensation isn't just unsightly; it's a sign your home is improperly insulated and ventilated. Without proper airflow, you could breathe in stale or hazardous air. Moist climates encourage mould and mildew, which is terrible for your health.
wipe down surfaces affected by condensation regularly to prevent mould growth. mould can be removed by washing the surface with a disinfectant or a fungicidal wash. This must be used in accordance with the manufacturers' instructions.
Water damage has bubbles or peels in it that make it bumpy and loose, whereas mold growth is slimy, damp, and can smudge if touched.
A condensation stain tends to be in dots or blotches that can be small and many of them and sometimes they can get big and cover a large area but normally does not look like the picture above of a roof leak stain.
Once it appears, mould will spread fast, actually way faster than it would outdoors. Therefore, the moment you notice stains in black or greenish, you have to react quickly to prevent further contamination of the ceiling.
Spring and Fall are commonly known as the worst seasons for mold growth. Especially in regions with heavy rain and high water levels, the moisture can cause expedited growth. Heavy rain showers can bring the best environment for mold.
When searching for black mold, look for circular-shaped spots that are black, dark green or dark brown. Some black mold can also take on shades of orange or have flecks of white within it. Most of the time, black mold has a slightly furry appearance.
Mildew and mold are both fungi, but mildew is not as invasive or troublesome as other types of mold. Typically found in wet areas, mildew looks grayish-white and may turn brown. It's flat and powdery and it's an easier fungus to clean because it lives only on the surface of a material (such as bathroom tile).
However, it is quite risky living in a home with visible mold since you are exposed to mold spores that can become airborne when blown around by the gush of wind from your windows or HVAC systems. If mold is left unattended, it can spread to other areas of your home causing serious health problems.
Mix a Cleaning Solution
To clean a small area of mold, mix a solution of one tablespoon dishwashing liquid, 1/2 cup chlorine bleach, and one cup of warm water in a spray bottle. The dishwashing liquid will help the solution cling to the ceiling longer to kill the mold.
Specifically, air purifiers with HEPA (high-efficiency particulate air) filters work great at removing mold spores. HEPA filters are considered to be rated MERV 17 or above, which means that the filters can trap more than 99.7% of air particles as small as 0.3-1.0 microns in size.
Ventilation fans are the best way to prevent mold build up inside a home. Think about it: what happens when a home has a flood? Typically, a water damage expert will be called in and the first thing they do is bring in ventilation fans to dry out the moisture and wetness inside the home.
If you live in a humid environment and want to control moisture levels to prevent mold growth, a dehumidifier may be the best choice. Dehumidifiers are effective at reducing humidity levels and removing excess moisture from the air, which can help prevent the growth of mold and mildew.