期刊
BUILDINGS
卷 12, 期 12, 页码 -出版社
MDPI
DOI: 10.3390/buildings12122185
关键词
prefabrication; airtightness; air leakage; air barrier; light wood frame; construction; thermal bridge; design; conception
资金
- Natural Sciences and Engineering Research Council of Canada [DCPJ 533629-18]
- IRC [IRCPJ 461745-18]
- Ministere des Forets, de la Faune et des Parcs through its PVT [PVT-29]
- Societed'habitation du Quebec through its PADIQH [PS-2019-01085]
Fully prefabricated wood walls (FPWW) require a reliable self-sealing joint for enhanced building envelope performance. This study developed a self-sealing joint using different sealing materials and compared them through laboratory tests and on-site observations. The butyl tape showed the best results, allowing for automatic sealing of adjacent walls spaced up to 7 mm apart. FPWW maximizes the efficiency of construction while reducing costs associated with transportation.
As fully prefabricated wood walls (FPWW) are envisioned to increase building envelope performance, the junction between panels becomes crucial. Since FPWW restricts access to the inter-panel joints, it is preferable to generate an upstream mechanism to complete the joint automatically on-site. This study aimed to design a self-sealing joint for FPWW that would achieve high energy standards and accelerate on-site construction. Airtightness tests and thermal bridge assessments were conducted in the laboratory to compare the developed self-sealing joints with different sealing materials. These same tests were conducted on-site, in addition to observations of the assembly speed of conventional prefabricated walls and FPWW. Of all the materials tested, butyl tape showed the tightest connections. This material helps the joint developed to automatically seal adjacent walls spaced up to 7 mm apart. FPWW maximize the industrialization of conventional prefabricated walls by realizing the sealing details and the installation of doors, windows and exterior siding offsite. This way, FPWW could reduce the duration of a conventional single-family residential project. FPWW maximize quality control while reducing transportation costs associated with conventional modular solutions.
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