Analysis of the distribution of temperature and humidity in different variants of external walls made of hemp-lime composite
© 2016 Budownictwo i Architektura. Publikacja na licencji Creative Commons Attribution-NonCommercial-ShareAlike 4.0 (CC BY-NC-SA 4.0)
Cytowanie: Budownictwo i Architektura, vol. 16(2) (2017) 153-160, ISSN 1899-0665, DOI: 10.24358/Bud-Arch_17-162_011
| Historia: | Opublikowano: | 12-07-2017 |
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Streszczenie:
Proper design of the building component, which not only meets the legal requirements, but also provides comfort of using of buildings, requires knowledge of the materials and solutions. Since moisture is one of the main factors that can affect the building structure destruction, it is particularly important to be aware of hygrothermal properties of components. And this is the focus of the study. In this paper several variants of external walls were analysed, according to the requirements in terms of: heat transfer coefficient U, the risk of surface and interstitial condensation. Partitions were designed with composite based on shives from industrial hemp and lime binder, which is not yet widely used in Poland. The purpose of the analysis of this material was to prove the validity of using the natural materials in residential buildings.
Słowa kluczowe:
condensation, thermal conductivity, moisture, industrial hemp, lime.
Analysis of the distribution of temperature and humidity in different variants of external walls made of hemp-lime composite
Abstract:
Proper design of the building component, which not only meets the legal requirements, but also provides comfort of using of buildings, requires knowledge of the materials and solutions. Since moisture is one of the main factors that can affect the building structure destruction, it is particularly important to be aware of hygrothermal properties of components. And this is the focus of the study. In this paper several variants of external walls were analysed, according to the requirements in terms of: heat transfer coefficient U, the risk of surface and interstitial condensation. Partitions were designed with composite based on shives from industrial hemp and lime binder, which is not yet widely used in Poland. The purpose of the analysis of this material was to prove the validity of using the natural materials in residential buildings.
Keywords:
condensation, thermal conductivity, moisture, industrial hemp, lime.
Literatura / References:
1. Stanwix W., Sparrow A., The Hempcrete Book – Designing and building with hemp-lime. England, Green Books, 2014.
2. www.japanhemp.org/en/miasahouse.htm
3. Allin S., Building with Hemp. Ireland, Seed Press, 2012.
4. Bevan A., Woolley T., Hemp lime construction – A guide to building with hemp lime composites, England, BRE Press, 2008.
5. Evrard A., Sorption behaviour of Lime-Hemp Concrete and its relations to indoor comfort and energy demand, The 23rd Conference on Passive and Low Energy Architecture, Geneva, 2006.
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7. Booklet: The Thermal Performance of Tradical Hemcrete.
8. EN ISO 6946:2007: Building components and building elements – Thermal resistance and thermal transmittance – Calculation method.
9. Rozporządzenie Ministra Infrastruktury z dnia 12 kwietnia 2002 r. w sprawie warunków technicznych, jakim powinny odpowiadać budynki i ich usytuowanie (Dz. U. Nr 75, poz. 690, ze zmianami z dnia 5 lipca 2013 r.).
10. Treść Programu priorytetowego Narodowego Funduszu Ochrony Środowiska i Gospodarki Wodnej „Poprawa efektywności energetycznej”.
11. ISO 13788:2012 „Hygrothermal performance of building components and building elements. Internal surface temperature to avoid critical surface humidity and interstitial condensation. Calculation methods”, International Organization for Standardization, Switzerland.
12. www.mir.gov.pl/strony/zadania/budownictwo/dane-do-swiadectw-charakterystyki-energetycznej-budynkow
13. Dylla A., Praktyczna fizyka cieplna budowli. Bydgoszcz, Wydawnictwa uczelniane UTP, 2009.