Edit Report #241
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119 Leicester Road WV6 Mould & Damp Report Inspection Summary We attended the property as instructed to investigate the recurring mould and damp issues and determine the underlying cause of the problem. Following a full inspection of the property, including the kitchen, bathroom and affected window reveals, we found that the primary cause of the mould growth is poor ventilation, rather than penetrating or rising damp. Findings The property's mechanical ventilation was tested, and both the kitchen and bathroom extractor fans were found to be operating extremely inefficiently, achieving less than 20% of the airflow expected. This level of extraction is inadequate to remove the moisture generated during normal day-to-day living. Activities such as showering, cooking, washing and general occupancy produce significant amounts of moisture. As the extractor fans are not effectively removing this humid air, the moisture remains trapped within the property. Unless windows are regularly opened, the humidity has no effective means of escaping. As a result, condensation is forming on the coldest surfaces within the property, particularly around the window reveals, window boards, external walls and within the bathroom. This prolonged condensation has led to the mould growth visible throughout the property. The bathroom also shows signs of mould developing to the ceiling and around the silicone and lower wall areas, which is consistent with excessive moisture and poor extraction. Conclusion In our professional opinion, the recurring mould is being caused by condensation due to inadequate ventilation. Unless the ventilation is upgraded, the mould is likely to continue returning, even after cleaning and redecoration. Recommended Remedial Works We recommend carrying out the following works: Remove the existing extractor fan in the kitchen and replace it with a new humidistat extractor fan. Remove the existing extractor fan in the bathroom and replace it with a new humidistat extractor fan. The humidistat fans operate using a built-in humidity sensor. When humidity levels rise, the fans automatically switch on and continue running until the moisture levels have reduced. These fans should be left permanently powered to provide continuous automatic ventilation. Clean and treat all mould-affected areas using a specialist anti-fungal treatment. Apply stain block where required. Redecorate all affected areas using anti-mould emulsion. Remove all mould-contaminated silicone within the bathroom and replace it with new sanitary-grade anti-mould silicone. Once the ventilation has been upgraded and the remedial works completed, the property will be in a much better position to control humidity and significantly reduce the risk of future mould growth. Continued use of the upgraded ventilation system, together with reasonable background heating and ventilation, will provide the best long-term solution.
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