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Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
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Title: Moisture-Related Properties of Wood and the Effects of Moisture on Wood and Wood Products

Source: IN: Moisture control in buildings: the key factor in mold preventions / Heinz R.

Author(s)Carll, Charles; Wiedenhoeft, Alex C.

Publication Year: 2009  View PDF »

Category: Journal Articles
Associated Research Project(s):   FPL-4714-1A  FPL-4723-1

Abstract: MOISTURE IS ARGUABLY THE MOST IMPORTANT factor affecting the performance and service life of wood and wood products. Moisture affects the dimensional movement of wood and wood products; under certain conditions, moisture change can result in major dimensional change. The integrity and strength of adhered (bonded) wood products can be compromised by swelling-induced stresses that accompany wetting. Progressive deflection over time of wood members under load is influenced by moisture conditions, particularly by large repetitive fluctuations in moisture content. Mechanical connections between wood members can be compromised by exposure to elevated moisture conditions or by significant moisture cycling. It is widely recognized that the structural integrity of wood can be irreversibly degraded by biological attack. In some cases biological infestation does not influence structural integrity but nevertheless influences serviceability. For many insect pests and all fungi, moisture conditions higher than the preferred inservice conditions are either required for infestation, or increase the likelihood of infestation.

Keywords: Wood moisture, moisture content, deterioration, moisture, building materials, service life, lumber, fasteners, corrosion, biodegradation, wood-decaying fungi, bacteria, insect pests, wood anatomy, composite materials, mechanical properties, building moisture, wooden buildings, dimensional stability, moisture control, exposure tests, decomposition of wood, durability, swelling, warping, checking, shrinkage, creep, connectors, wood strength, wood decay, moisture content of wood in service

Publication Review Process: Non-Refereed (Other)

File size: 2,297 kb(s)

Date posted: 02/09/2010
RITS Product ID: 35755
Current FPL Scientist associated with this product
Wiedenhoeft, Alex C.
Research Botanist
  

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