Hygro-Thermal Performance of Wooden Beam Ends: Experimental Investigations of Uninsulated and Internally Insulated Brick Wall

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21720%2F20%3A00343682" target="_blank" >RIV/68407700:21720/20:00343682 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1051/e3sconf/202017201009" target="_blank" >https://doi.org/10.1051/e3sconf/202017201009</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/e3sconf/202017201009" target="_blank" >10.1051/e3sconf/202017201009</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Hygro-Thermal Performance of Wooden Beam Ends: Experimental Investigations of Uninsulated and Internally Insulated Brick Wall

Popis výsledku v původním jazyce

Wooden floors were traditionally used in brick apartment houses built at the turn of 20th century in many European cities. Thermal renovation of such houses often involves thermal insulation at interior side of external walls. Internal insulation makes microclimate in the vicinity of wooden beam ends colder and more humid. The real-scale experiment involving a part of wooden floor connected to a 30 cm thick masonry wall was monitored for two consecutive years. Measured data were used to compare microclimate in sealed and open joist pockets. Joist pockets were either placed in the masonry wall with plaster on both sides or placed in the same masonry wall insulated on the interior side (vapour open thermal insulation system). The measured results indicate that the sealing tape alone is not sufficient to keep the relative humidity in joist pockets below 85 % in cold climate and under high internal moisture load. The paper concludes that reasonable trade-off between thermal efficiency, thermal comfort and moisture safety is difficult to reach for masonry with internal insulation and wooden floors. Sealing provisions complemented by tempering of joist pockets are considered as two key technical measures for reliable hygro-thermal performance of wooden beam ends in full-brick masonry with interior thermal insulation in cold temperate climate.

Název v anglickém jazyce

Hygro-Thermal Performance of Wooden Beam Ends: Experimental Investigations of Uninsulated and Internally Insulated Brick Wall

Popis výsledku anglicky

Wooden floors were traditionally used in brick apartment houses built at the turn of 20th century in many European cities. Thermal renovation of such houses often involves thermal insulation at interior side of external walls. Internal insulation makes microclimate in the vicinity of wooden beam ends colder and more humid. The real-scale experiment involving a part of wooden floor connected to a 30 cm thick masonry wall was monitored for two consecutive years. Measured data were used to compare microclimate in sealed and open joist pockets. Joist pockets were either placed in the masonry wall with plaster on both sides or placed in the same masonry wall insulated on the interior side (vapour open thermal insulation system). The measured results indicate that the sealing tape alone is not sufficient to keep the relative humidity in joist pockets below 85 % in cold climate and under high internal moisture load. The paper concludes that reasonable trade-off between thermal efficiency, thermal comfort and moisture safety is difficult to reach for masonry with internal insulation and wooden floors. Sealing provisions complemented by tempering of joist pockets are considered as two key technical measures for reliable hygro-thermal performance of wooden beam ends in full-brick masonry with interior thermal insulation in cold temperate climate.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA20-12941S" target="_blank" >GA20-12941S: Růst plísní na povrchové vrstvě rostlého dřeva za proměnných okrajových podmínek</a><br>

Návaznosti

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

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

E3S Web of Conferences Volume 172 (2020) - 12th Nordic Symposium on Building Physics (NSB 2020)

ISBN

—

ISSN

2555-0403

e-ISSN

2267-1242

Počet stran výsledku

5

Strana od-do

—

Název nakladatele

EDP Sciences

Místo vydání

Les Ulis Cedex A

Místo konání akce

Tallinn

Datum konání akce

7. 9. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—