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Improving the thermal performance of concrete-sandwich envelopes in relation to the moisture behaviour of building structures in boreal conditions

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Improving the thermal performance of concrete-sandwich envelopes in relation to the moisture behaviour of building structures in boreal conditions. / Fedorik, Filip; Malaska, Mikko; Hannila, Raimo; Haapala, Antti.

julkaisussa: Energy and Buildings, Vuosikerta 107, 15.11.2015, s. 226-233.

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Fedorik, Filip ; Malaska, Mikko ; Hannila, Raimo ; Haapala, Antti. / Improving the thermal performance of concrete-sandwich envelopes in relation to the moisture behaviour of building structures in boreal conditions. Julkaisussa: Energy and Buildings. 2015 ; Vuosikerta 107. Sivut 226-233.

Bibtex - Lataa

@article{6965c095b3c04fa3889a2ad12d50d82a,
title = "Improving the thermal performance of concrete-sandwich envelopes in relation to the moisture behaviour of building structures in boreal conditions",
abstract = "The excellent thermal performance and low cost of concrete-sandwich walls have made them widely applied in residential buildings. However, their standard composition may require additional insulation in boreal and arctic climates, where improvements in thermal insulation are achieved mainly by applying additional insulation layers on the envelope surface. Although thick insulation will substantially improve the heat capacity of a structure, elevated temperatures and entrapped humidity can lead to favourable conditions for the initiation of mould growth. The present study simulates the thermal performance of a model house wall structure in relation to increased mould growth risk. The results indicate that added insulation may have a negative impact not only on the structure and material properties of structural elements, but also on the environmental health and comfort of residents. Furthermore, climate conditions are shown to be a significant factor in identifying an optimal insulation design based on thermal performance and structural health.",
keywords = "Concrete sandwich, Energy efficiency, Heat and mass transfer, Mould growth, Renovation building, Structural health",
author = "Filip Fedorik and Mikko Malaska and Raimo Hannila and Antti Haapala",
year = "2015",
month = "11",
day = "15",
doi = "10.1016/j.enbuild.2015.08.020",
language = "English",
volume = "107",
pages = "226--233",
journal = "Energy and Buildings",
issn = "0378-7788",
publisher = "Elsevier Science",

}

RIS (suitable for import to EndNote) - Lataa

TY - JOUR

T1 - Improving the thermal performance of concrete-sandwich envelopes in relation to the moisture behaviour of building structures in boreal conditions

AU - Fedorik, Filip

AU - Malaska, Mikko

AU - Hannila, Raimo

AU - Haapala, Antti

PY - 2015/11/15

Y1 - 2015/11/15

N2 - The excellent thermal performance and low cost of concrete-sandwich walls have made them widely applied in residential buildings. However, their standard composition may require additional insulation in boreal and arctic climates, where improvements in thermal insulation are achieved mainly by applying additional insulation layers on the envelope surface. Although thick insulation will substantially improve the heat capacity of a structure, elevated temperatures and entrapped humidity can lead to favourable conditions for the initiation of mould growth. The present study simulates the thermal performance of a model house wall structure in relation to increased mould growth risk. The results indicate that added insulation may have a negative impact not only on the structure and material properties of structural elements, but also on the environmental health and comfort of residents. Furthermore, climate conditions are shown to be a significant factor in identifying an optimal insulation design based on thermal performance and structural health.

AB - The excellent thermal performance and low cost of concrete-sandwich walls have made them widely applied in residential buildings. However, their standard composition may require additional insulation in boreal and arctic climates, where improvements in thermal insulation are achieved mainly by applying additional insulation layers on the envelope surface. Although thick insulation will substantially improve the heat capacity of a structure, elevated temperatures and entrapped humidity can lead to favourable conditions for the initiation of mould growth. The present study simulates the thermal performance of a model house wall structure in relation to increased mould growth risk. The results indicate that added insulation may have a negative impact not only on the structure and material properties of structural elements, but also on the environmental health and comfort of residents. Furthermore, climate conditions are shown to be a significant factor in identifying an optimal insulation design based on thermal performance and structural health.

KW - Concrete sandwich

KW - Energy efficiency

KW - Heat and mass transfer

KW - Mould growth

KW - Renovation building

KW - Structural health

U2 - 10.1016/j.enbuild.2015.08.020

DO - 10.1016/j.enbuild.2015.08.020

M3 - Article

VL - 107

SP - 226

EP - 233

JO - Energy and Buildings

JF - Energy and Buildings

SN - 0378-7788

ER -