Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Threshold values for mould growth: Critical moisture level of 21 different building materials
RISE Research Institutes of Sweden, Built Environment, Building and Real Estate.ORCID iD: 0000-0003-0200-6513
RISE Research Institutes of Sweden, Built Environment, Building and Real Estate.ORCID iD: 0000-0002-7133-6762
RISE Research Institutes of Sweden, Built Environment, Building and Real Estate.ORCID iD: 0000-0001-7930-8654
RISE Research Institutes of Sweden, Built Environment, Building and Real Estate.ORCID iD: 0000-0003-0371-9662
2020 (English)In: E3S Web of Conferences. Volume 172, 2020, EDP Sciences , 2020, article id 20002Conference paper, Published paper (Refereed)
Abstract [en]

The susceptibility for mould growth varies among different building materials. One way to describe the susceptibility is the lowest RH at which mould can grow on a specific material, the critical moisture level (RHcrit). Determining RHcrit for materials provide the basis for material choice in designs where moisture and temperature conditions are known. In this study, RHcrit of 21different products were determined according to SIS-TS 41:2014/SPMet 4927. This test method is developed based on the results of a variety of laboratory studies and validated by field studies. Test specimens were inoculated with a suspension containing spores from six different mould fungi and were then incubated in moisture chambers at four levels of RH at 22 °C. After 12 weeks specimens were analysed for mould growth. RHcrit was determined based on the lowest RH at which mould grew on the specimens. RHcrit varied among different products, even between product belonging to a similar group of material, for example, calcium silicate boards or gypsum boards. The results show, and confirm, previous findings that it is not possible to estimate RHcrit for a specific product based on material group. Instead, each product must be tested. © The Authors

Place, publisher, year, edition, pages
EDP Sciences , 2020. article id 20002
Keywords [en]
Building materials, Calcium silicate, Moisture, Moisture determination, Silicates, Testing, Calcium silicate boards, Laboratory studies, Material choice, Moisture chambers, Moisture level, Specific materials, Temperature conditions, Test specimens, Molds
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-45619DOI: 10.1051/e3sconf/202017220002Scopus ID: 2-s2.0-85088433530OAI: oai:DiVA.org:ri-45619DiVA, id: diva2:1458810
Conference
12th Nordic Symposium on Building Physics, NSB 2020, 6 September 2020 through 9 September 2020
Available from: 2020-08-18 Created: 2020-08-18 Last updated: 2023-06-05Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records

Johansson, PernillaLång, LukasBok, GunillaCapener, Carl-Magnus

Search in DiVA

By author/editor
Johansson, PernillaLång, LukasBok, GunillaCapener, Carl-Magnus
By organisation
Building and Real Estate
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 101 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf