Proudění vzduchu v konstrukci crawl space
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Date
2023-07-20
Authors
0009-0003-6035-6260Advisor
Referee
Mark
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Volume Title
Publisher
Czech Journal of Civil Engineering
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Abstract
Ve střední Evropě je rozšířené zakládání dřevostaveb na základových pasech s podkladním betonem. Zakládání staveb,systémem crawl space,je spíše výjimečné.Tento článek se zabýváprouděnímvzduchu a teplotně vlhkostnímipodmínkamivpřirozeně odvětrávané konstrukci crawl space v Českérepublice. Monitoringkonstrukce probíhal od dubna 2022 do února 2023. Vcrawl space bylo sledováno proudění vzduchu, teplota vzduchu a relativní vlhkost vzduchu. Ve vybraných letních dnech byla takésledována intenzita výměnyvzduchu.Dny byly vybírány za základě průměrné rychlosti proudění venkovního vzduchu. Intenzita větrání vcrawl space během června byla vysoká. Průměrné hodnotyse,ve vybraných dnech, pohybovaly od 5h-1do 12h-1.VČeské republice není ČSN norma, která by se zabývala návrhem konstrukce crawl spacezhlediska odvětrávání.VeSpojenýchstátech amerických jsou uvedeny požadavky vInternational Residential Code (IRC–International Code Council). Při aplikaci této normy bylo zjištěno, že plocha větracích otvorů vesledovanémcrawl space byladvakrát většínež doporučuje International Residential Code
The strip foundation with a concrete slab-on-ground is common type of foundation in Central Europe. The crawl space is rather exceptional in CentralEurope. The paper deals with the air flow and temperature and moisture condition in a naturally ventilated crawl space in the Czech Republic.The monitoring of crawl space took place from April 2022 to February 2023.The air flow, air temperature and relative humidity was continuously monitored in the crawl space. On selected summer days, the space rate changing air was also monitored.Base on the avarage outdoor air flow, the summer day was selected. The space rate changing air was high during June in the crawl space. On the selected days, the avarage values rangedfrom 5 ach to 12 ach. In the Czech Republic, there is not Czech Standart that deals with design air flow in the crawl space In the United States, requirements are describes in International Residential Code (IRC–International Code Council). When applying this Code, it was detected the area of ventilation holes in the monitoring crawl space wastwice as large as recommended by the International Residential Code.
The strip foundation with a concrete slab-on-ground is common type of foundation in Central Europe. The crawl space is rather exceptional in CentralEurope. The paper deals with the air flow and temperature and moisture condition in a naturally ventilated crawl space in the Czech Republic.The monitoring of crawl space took place from April 2022 to February 2023.The air flow, air temperature and relative humidity was continuously monitored in the crawl space. On selected summer days, the space rate changing air was also monitored.Base on the avarage outdoor air flow, the summer day was selected. The space rate changing air was high during June in the crawl space. On the selected days, the avarage values rangedfrom 5 ach to 12 ach. In the Czech Republic, there is not Czech Standart that deals with design air flow in the crawl space In the United States, requirements are describes in International Residential Code (IRC–International Code Council). When applying this Code, it was detected the area of ventilation holes in the monitoring crawl space wastwice as large as recommended by the International Residential Code.
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Citation
Czech Journal of Civil Engineering. 2023, vol. 09, issue 01, p. 60-68.
https://doi.org/10.51704/cjce.2023.vol9.iss1.pp60-68
https://doi.org/10.51704/cjce.2023.vol9.iss1.pp60-68
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Peer-reviewed
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cs
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
http://creativecommons.org/licenses/by-nc-nd/4.0/