Characterisation of Micoorganism from Individual Layers of the Building Envelope (ETICS) and Methods of their Sampling

Abstract:

The current situation of contact insulation systems from 80s and 90s is fallback and they do not correspond with current valid technical norm. The almost case is necessary refurbishment of building envelope or performance of additional insulation. The question "what ETICS hides inside" occurs, and whether the removal is necessary or whether the making of additional insulation directly on the current one is possible. This is connected with occurring of growth microorganism especially mold through building envelope. Our article is about problem of mold through building envelope esp. ETICS in territory of Czech Republic. The results show that the whole ETICS is contaminated with mold and there is a risk that if there are appropriate conditions for the fungus in building envelope and the newly remade ETICS will be attacked, then it will be the danger to the health of the users of building. In our research, we have evaluated and verified sampling method for the characterization of biodeteriogens which are accessible and user friendly for public.

• Periodical: Key Engineering Materials (Volume 714)
• Pages: 196-200
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.714.196
• Online since: September 2016
• Authors: Pavla Ryparová*, Zuzana Rácová
• Keywords: Biodeteriogens, Building Envelope, Microorganism, Sampling

References

[1] P. Tiano, Biodegradation of cultural heritage: decay mechanisms and control methods, in Seminar article, New University of Lisbon, Department of Conservation and Restoration, 2002, p.7–12.

[2] W. Sand and E. Bock, Biodeterioration of mineral materials by microorganisms—biogenic sulfuric and nitric acid corrosion of concrete and natural stone, Geomicrobiol. J., vol. 9, no. 2–3, p.129–138, (1991).

DOI: 10.1080/01490459109385994

[3] M. Henderson and R. Duff, The release of metallic and silicate ions from minerals, rocks, and soils by fungal activity, J. soil Sci., (1963).

DOI: 10.1111/j.1365-2389.1963.tb00949.x

[4] F. Eckhardt, Solubilization, transport, and deposition of mineral cations by microorganisms-efficient rock weathering agents, Chem. Weather., (1985).

DOI: 10.1007/978-94-009-5333-8_10

[5] M. Tretiach, S. Bertuzzi, O. Salvadori, P. Tiano, and C. Pardini, In situ vitality monitoring of photosynthetic organisms by chlorophyll a fluorescence techniques, situ Monit. Monum. surfaces. Edifir, Firenze, p.279–286, (2008).

[6] F. Lewis, E. May, B. Daley, and A. Bravery, The role of heterotrophic bacteria in the decay of sandstone from ancient monuments, Biodeterior. Constr. Mater., p.45–53, (1987).

[7] M. P. Silverman and E. F. Munoz, Fungal attack on rock: solubilization and altered infrared spectra., Science, vol. 169, no. 3949, p.985–7, Sep. (1970).

DOI: 10.1126/science.169.3949.985

[8] R. a. Samson, J. Houbraken, U. Thrane, J. C. Frisvad, and B. Andersen, Food and Indoor Fungi. (2010).