Techniques and strategies for preserving buildings against dampness and mould conditions: a systematic literature review

Purpose Dampness and mould affect both the structural integrity and the occupants in buildings. Repair and remediation costs can be quite substantial. This calls for studies aimed at addressing techniques that can eliminate this menace. This study aims to critically explore the literature to identify common diagnosis, prevention and treatment techniques for dampness and mould conditions in buildings. The objectives also include identifying mitigation strategies. Design/methodology/approach Systematic review methodology using the PRISMA protocol was employed to examine the literature on dampness diagnosis, treatment and mitigation in buildings. Keyword searches were conducted in the Scopus, Web of Science, PubMed and Google Scholar databases. A selection of publications was identified and refined based on the relevance of their titles, abstracts and keywords. A total of 36 publications were identified and examined on the subject. Findings The review indicated that managing moisture in buildings required comprehensive competence in diagnosis, prevention, treatment and management strategies. Strategies/techniques such as peripheral drainage, reducing the absorbent section, installing a physical and chemical barrier and ventilating wall bases are prevalent. Designers must ensure adequate detailing, system design and material selection to avert water entry or condensation that leads to mould proliferation. Originality/value This study provides evidence-based, actionable recommendations for architects, engineers and homeowners by synthesizing validated techniques and strategies for diagnosing, preventing and addressing dampness and mould in buildings. This will enhance decision-making and improve indoor air quality.