Thermal and hygric properties of biomaterials suitable for interior thermal insulation systems in historical and traditional buildings
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00330304" target="_blank" >RIV/68407700:21110/19:00330304 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.buildenv.2019.03.020" target="_blank" >https://doi.org/10.1016/j.buildenv.2019.03.020</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.buildenv.2019.03.020" target="_blank" >10.1016/j.buildenv.2019.03.020</a>
Alternative languages
Result language
angličtina
Original language name
Thermal and hygric properties of biomaterials suitable for interior thermal insulation systems in historical and traditional buildings
Original language description
Historical and traditional buildings account for 10 – 40 % of the building stock in various countries and regions. Retrofitting of their building envelopes aimed at the improvement of thermal performance is often feasible using interior thermal insulation systems only. The effectiveness of systems without vapor barrier depends on the application of modern insulation materials with enhanced water transport properties contributing to fast liquid moisture redistribution and mitigating the risks related to water vapor condensation. In this paper, thermal and hygric properties of several biomaterials potentially applicable as thermal insulation boards on the interior side of historical building envelopes are investigated. The obtained experimental data include all transport and storage parameters necessary for appropriate hygrothermal- and energy-related assessment of buildings provided with interior thermal insulation systems using advanced computer simulation tools. Wood fiberboard, flax fibers, hemp fibers, jute fibers, and sheep wool are found to have, at the same time, low thermal conductivity (~0.05 W.m-1.K-1) and high moisture diffusivity (1.1x10-6 – 1.2x10-5 m2.s-1) which can classify them as good candidates for the use in interior thermal insulation systems without water vapor barrier. They exhibit convenient water vapor diffusion parameters and hygroscopic properties as well, which favors their use on the interior side. The natural origin presents another benefit. In a comparison with conventional materials (calcium silicate, hydrophilic mineral wool) having similar thermal and hygric properties, they bring more harmony to the process of retrofitting historical building envelopes.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/DG16P02H046" target="_blank" >DG16P02H046: Interior thermal insulation systems for the architectural-heritage domain</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Building and Environment
ISSN
0360-1323
e-ISSN
1873-684X
Volume of the periodical
154
Issue of the periodical within the volume
May
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
81-88
UT code for WoS article
000464358100009
EID of the result in the Scopus database
2-s2.0-85062898591