Extent of moisture and mould damage in structures of public buildings

Annila, Petri; Hellemaa, Matti; Pakkala, Toni; Lahdensivu, Jukka; Suonketo, Jommi; Pentti, Matti

doi:10.1016/j.cscm.2017.01.003

Cited by 32 publications

(26 citation statements)

References 8 publications

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“…Irrespective of definition, moisture and mould damage are internationally common and are estimated to occur in 18-50% of buildings (Mendell et al 2011;Norb€ ack and Miller 2013). Moisture or dampness and mould damage are found in 2Á5-26% of Finnish buildings, being most prevalent (12-26%) in public educational buildings and healthcare facilities (Annila et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Penicillium expansum strain isolated from indoor building material was able to grow on gypsum board and emitted guttation droplets containing chaetoglobosins and communesins A, B and D

et al. 2019

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AimsEmission of toxic metabolites in guttation droplets of common indoor fungi is not well documented. The aims of this study were (i) to compare mycotoxins in biomass and guttation droplets from indoor fungi from a building following health complaints among occupants, (ii) to identify the most toxic strain and to test if mycotoxins in guttation liquids migrated trough air and (iii) to test if toxigenic Penicillium expansum strains grew on gypsum board.Methods and ResultsBiomass suspensions and guttation droplets from individual fungal colonies representing Aspergillus, Chaetomium, Penicillium, Stachybotrys and Paecilomyces were screened toxic to mammalian cells. The most toxic strain, RcP61 (CBS 145620), was identified as Pen. expansum Link by sequence analysis of the ITS region and a calmodulin gene fragment, and confirmed by the Westerdijk Institute based on ITS and beta‐tubulin sequences. The strain was isolated from a cork liner, was able to grow on gypsum board and to produce toxic substances in biomass extracts and guttation droplets inhibiting proliferation of somatic cells (PK‐15, MNA, FL) in up to 20 000‐fold dilutions. Toxic compounds in biomass extracts and/or guttation droplets were determined by HPLC and LC‐MS. Strain RcP61 produced communesins A, B and D, and chaetoglobosins in guttation droplets (the liquid emitted from them) and biomass extracts. The toxins of the guttation droplets migrated c. 1 cm through air and condensed on a cool surface.ConclusionsThe mycotoxin‐containing guttation liquids emitted by Pen. expansum grown on laboratory medium exhibited airborne migration and were >100 times more toxic in bioassays than guttation droplets produced by indoor isolates of the genera Aspergillus, Chaetomium, Stachybotrys and Paecilomyces. Significance and Impact of the StudyToxic exudates produced by Pen. expansum containing communesins A, B and D, and chaetoglobosins were transferable by air. This may represent a novel mechanism of mycotoxin dispersal in indoor environment.

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Section: Introductionmentioning

confidence: 99%

Penicillium expansum strain isolated from indoor building material was able to grow on gypsum board and emitted guttation droplets containing chaetoglobosins and communesins A, B and D

et al. 2019

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“…Logo, o mais comum é que um tipo de umidade leve ao outro, provocando manifestações simultâneas capazes de dificultar o processo de diagnóstico (ANILLA et al, 2017;HENRIQUES, 1994). As fontes causadoras de umidade encontram-se relacionadas na FIG.…”

Section: Tipos De Umidadeunclassified

“…A umidade, constante tópico de interesse nos estudos da área da construção civil (AGYEKUM et al, 2013;FRANZONI;BANDINI;GRAZIANI, 2014), é a responsável pela maior parte das patologias construtivas, como apontado pelo Conselho Internacional de Pesquisa e Inovação na Construção Conseil International du Bâtiment (CIB) (CIB W86, 1993) e em outros estudos na área (AGYEKUM et al, 2013). Tal fato deve-se tanto aos danos causados à estrutura da edificação e à consequente diminuição do conforto higrotérmico quanto à proliferação de microrganismos nocivos à saúde humana (ANILLA et al, 2017; CARVALHO, Y. M.; PINTO, V. G. Umidade em edificações: conhecer para combater 2 ForSci. : r. cient.…”

Section: Introductionunclassified

Umidade em edificações: conhecer para combater

Carvalho

Pinto

2018

ForSci.: r. cient. IFMG

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“…Usually, the health symptoms in a school environment are related to structures damaged by moisture and mould (Annila et al, 2017;Handal et al, 2004;Haverinen-Shaughnessy, 2012;Koivisto et al, 2002;Lignell et al, 2007;Meklin et al, 2005;Patovirta, 2005;Patovirta et al, 2004;Sahakian et al, 2008;Savilahti et al, 2000;Taskinen et al, 1997). The damage may be caused by several factors, including water leaks, the moisture load from outdoors, failures in structures and a technical ageing of materials (Koivisto et al, 2002;Meklin et al, 2002;Täubel and Leppänen, 2017).…”

Section: Introductionmentioning

confidence: 99%

Municipal challenges in managing a building with noted health symptoms

Uotila

Saari

Junnonen

2019

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Purpose This study aims to present property management challenges that municipalities have encountered regarding a public building with noted building-related symptoms. The study goes on to provide reasons for the failure of attempts to manage the symptoms and discusses the current challenges concerning the process. Design/methodology/approach A participatory case study was used as the research methodology to identify the current challenges concerning a municipal approach to managing the building-related symptoms in a case-study building. The researchers scrutinised the history of the health symptom management process and attended the project planning meetings focused on the investigation of the condition of the building. Findings Multiple challenges concerning maintenance and omitted or postponed repair actions, as well as vagueness in the management process were found. In addition to this, it was noted that the complexity of the initial design of the building and vandalism have resulted in challenges for the maintenance and moisture performance of the building structures. According to the study, more orderliness and a more systematic process is needed when managing a municipal property. Practical implications The identified property management challenges may be of practical value for the facility managers and the property owners, especially when managing the building-related symptoms and a damaged building. Originality/value This study highlights the importance of having an in-depth understanding of condition assessments as well as proper maintenance and timely repairs for the successful management of the building-related symptoms in a municipal building. This is a pilot project in a larger project of management of building refurbishment.

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Extent of moisture and mould damage in structures of public buildings

Cited by 32 publications

References 8 publications

Penicillium expansum strain isolated from indoor building material was able to grow on gypsum board and emitted guttation droplets containing chaetoglobosins and communesins A, B and D

Penicillium expansum strain isolated from indoor building material was able to grow on gypsum board and emitted guttation droplets containing chaetoglobosins and communesins A, B and D

Umidade em edificações: conhecer para combater

Municipal challenges in managing a building with noted health symptoms

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