Condensation, damp, and mould
High humidity and poor ventilation cause condensation which is a breeding ground for black mould. Condensation occurs when moist air comes into contact with a colder surface, leading to the water vapor in the air condensing into liquid water. This can happen for various reasons, but some common causes of condensation dampness include:
Condensation and Black Mould
High humidity and poor ventilation cause condensation which is a breeding ground for black mould. Condensation occurs when moist air comes into contact with a colder surface, leading to the water vapor in the air condensing into liquid water. This can happen for various reasons, but some common causes of condensation dampness include:
- Lifestyle factors can cause high humidity: Certain lifestyle choices, such as drying clothes indoors, overwatering houseplants, or storing firewood indoors, can contribute to increased humidity levels, as can, activities such as cooking, bathing, or even excessive numbers of occupants, all contribute to condensation.
- Poor ventilation: Inadequate ventilation in a building can result in a buildup of moisture-laden air, especially in areas like kitchens, bathrooms, and laundry rooms where moisture is generated regularly.
- Cold surfaces: Cold surfaces within a building, such as poorly insulated walls, windows, or floors, can cause moisture in the air to condense when it comes into contact with them, particularly in colder climates or during colder seasons.
- Insufficient heating: Inadequate heating can result in cooler surfaces within a property, which increases the likelihood of condensation forming on those surfaces when warm, moist air comes into contact with them.
- Building construction: Certain construction materials or building designs may be more prone to condensation issues, especially if they lack adequate insulation or vapor barriers.
Addressing condensation dampness typically involves improving ventilation, reducing humidity levels, insulating cold surfaces, and ensuring proper heating and air circulation within the building.
Do all your windows have trickle vents?
Links
- Condensation, Damp, and Mould – advice from The Centre for Sustainable Energy
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