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Moisture safety of wooden buildings – design, construction and operation

Mjörnell, Kristina LU and Olsson, Lars (2019) In Journal of Sustainable Architecture and Civil Engineering 24(1). p.29-35
Abstract

During the last decade, building in wood has increased, mainly due to environmental awareness and targets to decrease the carbon footprint originated from the production of building materials. New technologies such as CLT (cross laminated timber) have accelerated the construction of multi-story wooden buildings. The CLT structure has been used both for housing and offices. Due to the extensive size of the buildings and relatively fast assembly of the buildings, weather protection has not always been used. It is commonly known that building materials sensitive to moisture need to be protected against high moisture conditions and water during construction. If this is not done, there is an increased risk of microbial growth which can... (More)

During the last decade, building in wood has increased, mainly due to environmental awareness and targets to decrease the carbon footprint originated from the production of building materials. New technologies such as CLT (cross laminated timber) have accelerated the construction of multi-story wooden buildings. The CLT structure has been used both for housing and offices. Due to the extensive size of the buildings and relatively fast assembly of the buildings, weather protection has not always been used. It is commonly known that building materials sensitive to moisture need to be protected against high moisture conditions and water during construction. If this is not done, there is an increased risk of microbial growth which can result in health problems for future users of the building, extensive costs for the remediation and exchange of materials, but also lack of trust in the construction industry. There are disagreements between the building industry and researchers how sensitive wooden buildings are to exposure to high moisture levels and water during storage at sites and construction. Based on results from several research projects studying moisture conditions both in the laboratory and in the field, recommendations for procurement, storage and handling of wood during construction to assure moisture safety are suggested in this paper.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
CLT, Guidance, Massive wooden buildings, Moisture safety, Mould growth
in
Journal of Sustainable Architecture and Civil Engineering
volume
24
issue
1
pages
7 pages
external identifiers
  • scopus:85071775890
ISSN
2029-9990
DOI
10.5755/j01.sace.24.1.23230
language
English
LU publication?
yes
id
afabe119-fb2c-4b36-bd7e-acf70a9b662e
date added to LUP
2019-09-23 09:59:21
date last changed
2020-01-13 02:24:47
@article{afabe119-fb2c-4b36-bd7e-acf70a9b662e,
  abstract     = {<p>During the last decade, building in wood has increased, mainly due to environmental awareness and targets to decrease the carbon footprint originated from the production of building materials. New technologies such as CLT (cross laminated timber) have accelerated the construction of multi-story wooden buildings. The CLT structure has been used both for housing and offices. Due to the extensive size of the buildings and relatively fast assembly of the buildings, weather protection has not always been used. It is commonly known that building materials sensitive to moisture need to be protected against high moisture conditions and water during construction. If this is not done, there is an increased risk of microbial growth which can result in health problems for future users of the building, extensive costs for the remediation and exchange of materials, but also lack of trust in the construction industry. There are disagreements between the building industry and researchers how sensitive wooden buildings are to exposure to high moisture levels and water during storage at sites and construction. Based on results from several research projects studying moisture conditions both in the laboratory and in the field, recommendations for procurement, storage and handling of wood during construction to assure moisture safety are suggested in this paper.</p>},
  author       = {Mjörnell, Kristina and Olsson, Lars},
  issn         = {2029-9990},
  language     = {eng},
  number       = {1},
  pages        = {29--35},
  series       = {Journal of Sustainable Architecture and Civil Engineering},
  title        = {Moisture safety of wooden buildings – design, construction and operation},
  url          = {http://dx.doi.org/10.5755/j01.sace.24.1.23230},
  doi          = {10.5755/j01.sace.24.1.23230},
  volume       = {24},
  year         = {2019},
}