Condensation on façades – influence of construction type and orientation

Zillig, Wolfgang; Lenz, K.; Sedlbauer, Klaus; Krus, Martin

doi:10.1201/9781003078852-61

Cited by 8 publications

(3 citation statements)

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“…Its effect on surface temperature is quite significant during the day but at night, due to low heat capacity of the plaster layer, the stored heat is quickly lost and the temperature rises only slightly. A similar study, conducted by Fraunhofer-Institute for Building Physics ( Figure 7 ), came to the same conclusions for both emissivity and absorption of short-wave radiation, taking into account the Holzkirchen climate [ 53 , 54 , 55 ].…”

Section: Solutions For Materials Layouts and Building Detailssupporting

confidence: 62%

Internal Abiotic Components That Influence the Development of Biocorrosion on ETICS Plasters

Dybowska-Józefiak

Wesołowska

2021

Materials

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Basic factors affecting the appearance of algae discoloration on the surface of the system are recognized effects of the external environment (external temperature and humidity, short- and long-term radiation, precipitation, wind and air pollution). Internal factors are often neglected by international technical documents on the evaluation of the effectiveness of resistance to biocorrosion of the External Thermal Insulation Composite System (ETICS). Based on literature data and in situ research, the basic internal factors responsible for the occurrence or intensification of the biocorrosion process were systematized. Internal factors were divided into two groups: (1) plaster properties and (2) solutions for material layouts and building details. The results of research on these factors indicate that they directly or indirectly influence the humidity condition of plaster and biocorrosion development is a consequence of this state. The opposite issue, the influence of biocorrosion on plaster properties, is analyzed only in patrial way.

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Section: Solutions For Materials Layouts and Building Detailssupporting

confidence: 62%

Internal Abiotic Components That Influence the Development of Biocorrosion on ETICS Plasters

Dybowska-Józefiak

Wesołowska

2021

Materials

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“…It is necessary to provide the following data for WUFI ® Pro to perform (Figure 1): wall characteristics, physical and hygrothermal material properties, surface transport coefficients, initial conditions, and exterior and interior ambience conditions. The surface orientation and inclination are important inputs of a simulation since the solar radiation and wind-driven rain, if the element is not horizontal, are dependent on these parameters [29,30]. In terms of outputs for the selected assembly, it is possible to assess the temperature ( • C), relative humidity (%), and water vapour partial pressure (hPa) for any of the selected locations within the assembly, water content for any layer (volume, kg/m 3 ) or in terms of equivalent water content for the assembly (area, kg/m 2 ), and the heat (W/m 2 ) and moisture fluxes (kg/m 2 s) for the assembly surfaces and layer interfaces.…”

Section: Wufi Softwarementioning

confidence: 99%

The Importance of Moisture Transport Properties of Wall Finishings on the Hygrothermal Performance of Masonry Walls for Current and Future Climates

Coelho

Henriques

2023

Applied Sciences

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A render is the first protective layer of exterior walls against the outdoor climate, which, due to its constitution, aims to gradually slow down the liquid moisture penetration to prevent it from reaching the wall inner layers. Due to the future expected changes in the outdoor climate, today’s exterior mortar might not be adequately designed to protect these walls. This paper aims to analyse the influence of mortars on the hygrothermal performance of solid brick walls under current and future climates. The study includes four types of assemblies and three types of mortars, and it was carried out for Lisbon and three other climates by using a computational simulation tool. Finally, the moisture gains and respective reach due to the future wind-driven rain (WDR) spells were assessed by means of using future weather files for Lisbon’s climate. It was shown that the solid brick layer is influenced differently depending on the characteristics of the mortar layers and outdoor conditions. In terms of WDR spells, aside from the precipitation and the spell period, the distribution of the WDR events within the spell also conditions the dryness of the assembly. The depth that the outdoor moisture was able to reach varies between 94 and 200 mm.

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“…According to research [5][6][7] the formation, development and destructive influence of microorganisms on building materials have a direct impact on the living conditions for their existence. For the intensity of the algae growth on the façade, especially humidity, nutrients supply, pH of the environment and peripheral light are required.…”

Section: Risk Of Development Of Biocorrosion In the Composite Structure "Double Etics"mentioning

confidence: 99%

Methodology of verification for risk the biocorrosion development in the layers of “Double ETICS”.

Belániová

Antošová

2019

MATEC Web Conf.

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Anyhow renovation of the surfaces of building materials and structures without thorough disposal of biological material has not been proven in the past. The main topic of the paper is to find out the functionality of the new technology in terms of survival and development of biocorrosion in structures. The main focus of the thesis is verification the treatment of moisture composite "Double ETICS", the possible growth of microorganisms and the subsequent degradation of components. The aim of research is to propose a methodology for the verification of humidity and temperature conditions in the composite construction and development of microorganisms after application of alternative technology of preparation of the substrate under the technology "Double ETICS".

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Condensation on façades – influence of construction type and orientation

Cited by 8 publications

References 0 publications

Internal Abiotic Components That Influence the Development of Biocorrosion on ETICS Plasters

Internal Abiotic Components That Influence the Development of Biocorrosion on ETICS Plasters

The Importance of Moisture Transport Properties of Wall Finishings on the Hygrothermal Performance of Masonry Walls for Current and Future Climates

Methodology of verification for risk the biocorrosion development in the layers of “Double ETICS”.

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