What are the common causes of mould and damp in buildings?

Mould and damp are typically caused by excess moisture, which can result from:

• Poor ventilation – Trapped moisture from cooking, showering, or drying clothes indoors.
• Leaks – Faulty plumbing, roof leaks, or cracked pipes.
• Rising damp – Moisture from the ground moving up through walls due to a failed or missing damp proof course.
• Condensation – Warm, humid air coming into contact with cold surfaces, leading to water droplets.
• Penetrating damp – Water entering through walls due to damaged brickwork, defective gutters, or leaking roofs.