Impact of different water penetration criteria and cavity ventilation rates on the risk of mold growth in timber frame walls with brick veneer cladding

↓ Direkt till sidans innehåll
↓ Direkt till sidans sekundära innehåll (sidomenyn)

Search: WFRF:(Hamid S. A.) > (2020-2024) > Impact of different...

Details
MARC

Kahangi shahreza, SLund University,Lunds universitet,Avdelningen för Konstruktionsteknik,Institutionen för bygg- och miljöteknologi,Institutioner vid LTH,Lunds Tekniska Högskola,LTH profilområde: Cirkulär byggindustri,LTH profilområden,Division of Structural Engineering,Department of Building and Environmental Technology,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Circular Building Sector,LTH Profile areas,Faculty of Engineering, LTH (author)

Impact of different water penetration criteria and cavity ventilation rates on the risk of mold growth in timber frame walls with brick veneer cladding

Article/chapterEnglish2023

Publisher, publication year, extent ...

2023
11 s.

Numbers

LIBRIS-ID:oai:lup.lub.lu.se:0cdbadfb-6431-44d6-8c1d-27e3d6a42a60
https://lup.lub.lu.se/record/0cdbadfb-6431-44d6-8c1d-27e3d6a42a60URI
https://doi.org/10.1088/1742-6596/2654/1/012028DOI

Supplementary language notes

Language:English
Summary in:English

Part of subdatabase

SwePubSwePub

Classification

Subject category:art swepub-publicationtype
Subject category:ref swepub-contenttype

Notes

The present paper investigates the impact of different water penetration criteria on the risk for damage in a common type of building envelope in Nordic countries, timber frame walls with brick masonry veneer. The studied walls are evaluated based on one damage criterion, the risk of mold growth. The study investigates several parameters: water penetration criterion, type of moisture source (uniformly distributed or point source) and its position in the wall assembly, air change rate (ACR) (representing different workmanship scenarios), wind-driven rain (WDR) coefficient, and locations (Gothenburg and Rensjön, with different average annual rainfall and temperature). Two criteria on how to implement water penetration are compared: a) a commonly accepted reference model that assumes one percent of all wind-driven rain deposited on the façade to penetrate the clay brick cladding, and b) a new criterion stating that 3.8% of WDR penetrates when the water content of the brick veneer cladding is above 90% of its saturation capacity. The simulation is done for a thirteen-year period with WUFI Pro and WUFI 2D. The results indicate the greater importance of implementing water penetration compared to ventilation in cavities. Further, the findings suggest that the moisture source's location significantly impacts the mold growth risk. The results also show that the choice of the WDR coefficient affects the risks, which suggests that this factor needs accurate quantification for hygrothermal analyses. The results in this study suggest that an effective measure for the design/maintenance of such walls should incorporate: a) limiting the amount of water penetrating through the cladding, particularly stopping water from reaching the sensitive elements, i.e., timber studs, b) removing extruded mortar stemming from poor workmanship, if any, which may act as a capillary bridge.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

Abdul hamid, ALund University,Lunds universitet,Avdelningen för Byggnadsfysik,Institutionen för bygg- och miljöteknologi,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Building Physics,Department of Building and Environmental Technology,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)bygg-ama (author)
Avdelningen för KonstruktionsteknikInstitutionen för bygg- och miljöteknologi (creator_code:org_t)

Related titles

In:Journal of Physics: Conference Series26541742-6596

Internet link

Find in a library

Journal of Physics: Conference Series (Search for host publication in LIBRIS)

To the university's database

Find more in SwePub

By the author/editor: Kahangi shahreza ...; Abdul hamid, A

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Civil Engineerin ...; and Building Technol ...

Articles in the publication: Journal of Physi ...

By the university: Lund University

Search outside SwePub

Extend your search to:: Google; Google Book Search; Google Scholar

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

LIBRIS.kb.se