Experimental Investigations of Wooden Beam Ends in Masonry with Internal Insulation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21720%2F17%3A00323088" target="_blank" >RIV/68407700:21720/17:00323088 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S1876610217349172" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1876610217349172</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.egypro.2017.10.006" target="_blank" >10.1016/j.egypro.2017.10.006</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Experimental Investigations of Wooden Beam Ends in Masonry with Internal Insulation

Popis výsledku v původním jazyce

Today´s stringent requirements on building energy performance and gradually increasing price of energy enforce complex refurbishment measures. Improvement of thermal insulation of building enclosure is the first logical step for climatic conditions of semi-continental climate. Refurbishment of many buildings with cultural value is possible only by accepting additional thermal insulation of external walls from interior side. Floors in such buildings are often supported by wooden beams placed in pockets embedded in brick walls. This paper deals with temperature and relative humidity in the air cavity behind wooden beam ends. To study this phenomena real scale experiments in University Center for Energy Efficient Buildings (UCEEB) of the Czech Technical University in Prague have been monitored for two years. Measured results indicated the fundamental difference between different types of joist pocket treatment. The relative humidity in open pockets approached to 100 % in cold season and corresponding mold growth index reached a maximum higher than one (germination of mold spores). Sealed pockets reached practically zero mold growth index throughout the experiment, although relative humidity in the pocket tended to exceed 80 % during cold seasons.

Název v anglickém jazyce

Experimental Investigations of Wooden Beam Ends in Masonry with Internal Insulation

Popis výsledku anglicky

Today´s stringent requirements on building energy performance and gradually increasing price of energy enforce complex refurbishment measures. Improvement of thermal insulation of building enclosure is the first logical step for climatic conditions of semi-continental climate. Refurbishment of many buildings with cultural value is possible only by accepting additional thermal insulation of external walls from interior side. Floors in such buildings are often supported by wooden beams placed in pockets embedded in brick walls. This paper deals with temperature and relative humidity in the air cavity behind wooden beam ends. To study this phenomena real scale experiments in University Center for Energy Efficient Buildings (UCEEB) of the Czech Technical University in Prague have been monitored for two years. Measured results indicated the fundamental difference between different types of joist pocket treatment. The relative humidity in open pockets approached to 100 % in cold season and corresponding mold growth index reached a maximum higher than one (germination of mold spores). Sealed pockets reached practically zero mold growth index throughout the experiment, although relative humidity in the pocket tended to exceed 80 % during cold seasons.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/LO1605" target="_blank" >LO1605: Univerzitní centrum energeticky efektivních budov – Fáze udržitelnosti</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 11th Nordic Symposium on Building Physics

ISBN

—

ISSN

1876-6102

e-ISSN

1876-6102

Počet stran výsledku

6

Strana od-do

682-687

Název nakladatele

Elsevier

Místo vydání

Amsterodam

Místo konání akce

Trondheim

Datum konání akce

11. 6. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000426435500114