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Fuktproblem i oventilerade vindar hos nybyggda flerbostadshus
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics.
2015 (Swedish)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesisAlternative title
Moisture problems in unventilated winds of newly built apartment buildings (English)
Abstract [en]

Low ventilated cold winds have previously shown to fare better when it comes tomoisture balance. Recent fire requirements has led to that several major constructionfirms have abandoned the use of ventilation at the eaves, this has led to attics withvery limited ventilation. Although these winds should cope well with humidity overtheir lifespan, it have emerged moisture damages to new buildings with this kind ofwind. The reason for this is believed to be large quantities of construction moisturethat low ventilated winds can’t get rid of.This thesis was commissioned by AK-Konsult Indoor Air AB and has audited the coldwind structures from a building built in Örebro with proven moisture problems in theprograms WUFI and WUFI-Bio.The study shows that the winds in their current situation are risk structures whichare in great need of initial help from dehumidifiers to get rid of trapped constructionmoisture.There is uncertainty over how long you should dehumidify the structures, thereforemore extensive measurements should be done.The recommendation to is to dehumidify the structures until they certainly have gotrid of a large portion of the initial construction moisture. A more long lasting solutionis to evaluate the construction type to evade the issue.

Place, publisher, year, edition, pages
2015. , 46 p.
Keyword [en]
cold winds, WUFI, WUFI-Bio, Wärme Und Feuchte Instationär
Keyword [sv]
Examensarbete, kallvind, WUFI, WUFI-Bio, Wärme Und Feuchte Instationär
National Category
Civil Engineering
URN: urn:nbn:se:uu:diva-262911ISRN: UTH-INGUTB-EX-B-2015/23-SEOAI: diva2:856014
External cooperation
AK-Konsult Indoor Air AB
Educational program
Bachelor Programme in Construction Engineering
Available from: 2015-09-23 Created: 2015-09-23 Last updated: 2015-09-23Bibliographically approved

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