PCA(QT) Qualified Surveyor Reviewed Reviewed 7 July 2026 12 min read Mould on a bedroom ceiling is almost always caused by condensation — warm, moisture-laden air from sleeping occupants meeting a cold ceiling surface. Poor ventilation, thermal bridging, and inadequate insulation all make it worse. Roof leaks and penetrating damp are less common but more […]
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By Micken Patel, CSRT & PCA(QT) Certified Surveyor Updated 26 June 2026 6 min read Why Is Ventilation Important? 7 Key Benefits for Your Home and Health Quick Answer Ventilation is important because it constantly replaces stale, moist indoor air with fresh air — removing pollutants, controlling humidity, and preventing the conditions that lead to […]
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By Micken Patel, CSRT/PCA(QT) · Updated 20 July 2026 · 8 min read How to Stop Condensation in a Loft Quick answer: Loft condensation is stopped by combining two things: continuous airflow from eaves to ridge (so moist air can escape) and an airtight ceiling below (so moist air can’t get in). Insulation on its […]
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Damp homes are a common issue in the UK, with 5.8 million renters in the UK experienced damp and condensation issues, 44% rented properties had no extractor fan in the bathroom, and a further 31% said the bathroom had no window either, according to a Rentokil Property Care report. Damp can lead to peeling paint, […]
Read morePositive Input Ventilation (PIV) is an effective, low-energy whole-house ventilation system that introduces filtered, drier air into a property from the loft to reduce condensation, dampness, and mould. It significantly enhances indoor air quality by lowering pollutants and allergens. Main disadvantages include potential cool draughts in winter, noise, and reliance on correct installation. Key Benefits […]
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Condensation occurs when warm, moist air meets a cold surface, forming water droplets. This is more common in winter when indoor heating creates a stark contrast with colder walls and windows. Primary causes of condensation: Signs of Condensation Problems If you notice any of the following, your home may have a condensation issue: Ignoring condensation […]
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Window condensation occurs when warm, moist air comes into contact with the cooler surface of your window glass. This causes the moisture in the air to cool and turn into water droplets.
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