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Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
Fax: (608) 231-9592
Email

 

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Samuel V. Glass
Samuel V. Glass

Samuel V. Glass

Building and Fire Sciences
Unit: FPL-4716
Research Physical Scientist
One Gifford Pinchot Drive
Madison, WI
United States
53726-2398

Phone: 608-231-9401
Fax: 608-231-9303
svglass@fs.fed.us

Current Research

Wood structures can endure for centuries if they remain sufficiently dry. Many of the challenges of using wood as a structural material (such as mold growth, wood decay, corrosion of fasteners, and dimensional instability) arise from excessive moisture levels or large changes in moisture content.Dr. Glass leads the Building Moisture and Durability Team within the Building and Fire Sciences Research Work Unit at the Forest Products Laboratory. His research focuses on the relationships between moisture, energy-efficiency, and durability in residential and non-residential wood-based buildings. Primary research objectives include

  • Advancing fundamental research on wood–moisture relations;
  • Quantifying moisture sources in buildings;
  • Developing humidity-control strategies for improved building envelope performance; and
  • Improving the durability of energy-efficient wood-based building envelopes.

  • Research Interest

    • Durability of energy-efficient buildings
    • Building envelope performance
    • Moisture management in buildings
    • Heat, air, and moisture transfer
    • Wood-moisture relations
    • Hygrothermal properties of wood products
    • Interior and exterior moisture loads
    • Instrumentation for monitoring moisture levels in building assemblies


    Past Research

    Dr. Glass conducted his doctoral research in the Department of Chemistry at the University of Wisconsin-Madison. He investigated how surfactant films at the gas-liquid interface control gas uptake and evaporation of water. These studies contributed to understanding chemical reactions that occur in sulfuric acid droplets in the upper troposphere and lower stratosphere, which affect ozone levels.


    Research Importance

    The sustainability and health of America's forests depend on sound conservation practices, including utilization. Efficient use of wood as a green building material is important for climate change mitigation because wood products store carbon for as long as the building exists. The longer the service life, the greater the benefit. Wood products require much less energy to process than other building materials such as steel or concrete, and use of wood produces less air pollution, solid wastes, and greenhouse gases. Efficient wood utilization also reduces the risk and impacts of wildfire, provides incentives for private landowners to maintain forest land, and provides a critical source of jobs in rural America. These benefits hinge on efficient and proper use of wood in construction, and moisture control is essential because of wood's vulnerability to moisture problems. Moisture management is also critical because excessive dampness in buildings has been linked to negative health effects.


    Education

    • University of Wisconsin-Madison, Ph.D. Physical Chemistry , 2005
    • Calvin College, Grand Rapids, MI, B.A. Chemistry/Classical Civilization/Archaeology , 1998

    Professional Experience

    • Research Physical Scientist, USDA Forest Products Laboratory 2005 - Current
    • Research Assistant, University of Wisconsin-Madison, Department of Chemistry 2001 - 2005
    • Teaching Assistant, University of Wisconsin-Madison, Department of Chemistry 1999 - 2001

    Professional Organizations

    • Society of Wood Science and Technology (SWST), Member (2008 - Current)
    • American Society Of Heating, Refrigerating And Air-Conditioning Engineers (Ashrae), Member Research Subcommittee Chair and Voting Member, Technical Committee (TC) 4.4, Building Materials and Building Envelope Performance. Secretary, Vice Chair, and Voting Member, Standing Standard Project Committee (SSPC) 160, Criteria for Moisture-Control Design Analysis in Buildings. Voting Member, TC 1.12, Moisture Management in Buildings. (2005 - Current)

    Below are the 54 US Forest Service publications sorted by year. You may re-sort the list by: Title, Date Posted, Category, Publication or Year.

    Publication Year: 2018
     
    Title: Apparatus for gravimetric measurement of moisture sorption isotherms for 1-100 g samples in parallel
    Source: Wood and Fiber Science. 50(3): 244-253.
    Author(s) Zelinka, Samuel L.; Bourne, Keith J.; Glass, Samuel V; Boardman, Charles R.; Lorenz, Linda ; Thybring, Emil Engelund.
    Year: 2018   view abstract, download publication »
    Title: Experimental investigation of the influence of temperature on thermal conductivity of multilayer reflective thermal insulation
    Source: Energy and Buildings. 174: 26-30.
    Author(s) Pásztory, Zoltán ; Horváth, Tibor ; Glass, Samuel V; Zelinka, Samuel
    Year: 2018   view abstract, download publication »
    Title: Moisture monitoring and modeling of mass-timber building systems
    Source: In: Proceedings, WCTE 2018-World conference on timber engineering. Seoul, Republic of South Korea: Korean Institute of Forest Science. 7 p.
    Author(s) Kordziel, Steven ; Glass, Samuel V; Pei, Shiling ; Zelinka, Samuel L.; Tabares-Velasco, Paulo Cesar.
    Year: 2018   view abstract, download publication »
    Title: Moisture monitoring throughout the construction and occupancy of mass timber builidings
    Source: In: Proceedings, 1st international conference on new horizons in green civil engineering (NHICE-01). Victoria, BC: University of Victoria: 32-36.
    Author(s) Zelinka, S.L. ; Kordziel, S. ; Pei, S. ; Glass, S.V. ; Tabares-Velasco, P.C.
    Year: 2018   view abstract, download publication »
    Title: Quantifying and reducing errors in equilibrium moisture content measurements with dynamic vapor sorption (DVS) experiments
    Source: Wood Science and Technology. 52(4): 909-927.
    Author(s) Glass, Samuel V; Boardman, Charles R.; Thybring, Emil Engelund; Zelinka, Samuel L.
    Year: 2018   view abstract, download publication »
    Publication Year: 2017
     
    Title: Analysis of improved criteria for mold growth in ASHRAE standard 160 by comparison with field observations
    Source: In: Mukhopadhyaya, P; Fisler, D., eds. Advances in hygrothermal performance of building envelopes: materials, systems and simulations, ASTM STP1599. West Conshohocken, PA: ASTM International: 1-27.
    Author(s) Glass, Samuel V.; Gatland II, Stanley D.; Ueno, Kohta; Schumacher, Christopher J.
    Year: 2017   view abstract, download publication »
    Title: Development of a mold risk model for wood buildings
    Source: fplrip-4723-030-COSchoolofMines-Zelinka-Glass-Pei.
    Author(s) Pei, Shiling; Glass, Samuel V.; Zelinka, Samuel L.
    Year: 2017   view abstract, download publication »
    Title: Effect of weight percent gain and experimental method on fiber saturation point of acetylated wood determined by differential scanning calorimetry
    Source: Wood Science and Technology. 51(6): 1291-1305
    Author(s) Passarini, Leandro ; Zelinka, Samuel L.; Glass, Samuel V; Hunt, Christopher G.
    Year: 2017   view abstract, download publication »
    Title: Short hold times in dynamic vapor sorption measurements mischaracterize the equilibrium moisture content of wood
    Source: Wood Science and Technology (2017). 51: 243-260
    Author(s) Glass, Samuel V.; Boardman, Charles R.; Zelinka, Samuel L.
    Year: 2017   view abstract, download publication »
    Title: Simple and accurate temperature correction for moisture pin calibrations in oriented strand board
    Source: Building and Environment. 112 (2017): 250-260.
    Author(s) Boardman, Charles; Glass, Samuel V.; Lebow, Patricia K.
    Year: 2017   view abstract, download publication »
    Publication Year: 2016
     
    Title: A solution thermodynamics definition of the fiber saturation point and the derivation of a wood-water phase (state) diagram
    Source: Wood Science and Technology, Vol. 50(3). pp. 443-462.
    Author(s) Zelinka, Samuel L.; Glass, Samuel V.; Jakes, Joseph E.; Stone, Donald S.
    Year: 2016   view abstract, download publication »
    Title: Cell wall domain and moisture content influence southern pine electrical conductivity
    Source: Wood and Fiber Science
    Author(s) Zelinka, Samuel L.; Passarini, Leandro; Colon Quintana, José L.; Glass, Samuel V.; Jakes, Joseph E.; Wiedenhoeft, Alex C.
    Year: 2016   view abstract, download publication »
    Title: Comparison of the corrosion of fasteners embedded in wood measured in outdoor exposure with the predictions from a combined hygrothermal-corrosion model
    Source: Corrosion Science
    Author(s) Zelinka, Samuel L.; Glass, Samuel V.; Boardman, Charles R.; Derome, Dominique
    Year: 2016   view abstract, download publication »
    Title: Control of solar-driven moisture diffusion in cross-laminated timber walls with absorptive claddings
    Source: fplrip-4716-015-Glass
    Author(s) Glass, Samuel V.
    Year: 2016   view abstract, download publication »
    Title: Effects of Exterior Insulation on Moisture Performance of Wood-Frame Walls in the Pacific Northwest: Measurements and Hygrothermal Modeling
    Source: 3rd Residential Building Design & Construction Conference - March 2-3, 2016 at Penn State, University Park PHRC.psu.edu 2016
    Author(s) Glass, Samuel V.; Yeh, Borjen; Herzog, Benjamin J.
    Year: 2016   view abstract, download publication »
    Title: Improvements to water vapor transmission and capillary absorption measurements in porous materials
    Source: Journal of Testing and Evaluation. 44(6): 2396-2402
    Author(s) Zelinka, Samuel L.; Glass, Samuel V.; Boardman, Charles R.
    Year: 2016   view abstract, download publication »
    Title: Moisture storage and transport properties of preservative treated and untreated southern pine wood
    Source: Wood Material Science and Engineering
    Author(s) Zelinka, Samuel L.; Glass, Samuel V.; Boardman, Charles R.; Derome, Dominique
    Year: 2016   view abstract, download publication »
    Publication Year: 2015
     
    Title: Anatomically informed mesoscale electrical impedance spectroscopy in southern pine and the electric field distribution for pin-type electric moisture metres
    Source: Wood Material Science & Engineering
    Author(s) Zelinka, Samuel L.; Wiedenhoeft, Alex C.; Glass, Samuel V.; Ruffinatto, Flavio
    Year: 2015   view abstract, download publication »
    Title:  Thermal Insulation System Made of Wood and Paper for Use in Residential Construction
    Source: Forest Products Journal
    Author(s) Pásztory, Zoltán; Horváth, Tibor; Glass, Samuel V.; Zelinka, Samuel L.
    Year: 2015   view abstract, download publication »
    Title: Basement radon entry and stack driven moisture infiltration reduced by active soil depressurization
    Source: Building and Environment, Volume 85, 2015; pp. 220-232.
    Author(s) Boardman, C.R.; Glass, Samuel V.
    Year: 2015   view abstract, download publication »
    Title: Force-displacement measurements of earlywood bordered pits using a mesomechanical tester
    Source: Plant, Cell & Environment
    Author(s) Zelinka, Samuel L.; Bourne, Keith J.; Hermanson, John C.; Glass, Samuel V.; Costa, Adriana; Wiedenhoeft, Alex C.
    Year: 2015   view abstract, download publication »
    Title: Hygrothermal Performance of Mass Timber Construction
    Source: Presentation: 2015 Mass Timber Research Workshop, Forest Products Laboratory (FPL), Madison, Wisconsin; November 3-4, 2015
    Author(s) Glass, Sam
    Year: 2015   view abstract, download publication »
    Title: Moisture Performance of Energy-Efficient and Conventional Wood-Frame Wall Assemblies in a Mixed-Humid Climate
    Source: Buildings
    Author(s) Glass, Samuel; Kochkin, Vladimir; Drumheller, S.; Barta, Lance
    Year: 2015   view abstract, download publication »
    Title: Moisture transfer through the membrane of a cross-flow energy recovery ventilator: Measurement and simple data-driven modeling
    Source: Journal of Building Physics 2015, Volume 38, number 5, 2015; pp. 389-418.
    Author(s) Boardman, CR; Glass, Samuel V.
    Year: 2015   view abstract, download publication »
    Title: Subcellular Electrical Measurements as a Function of Wood Moisture Content
    Source: Proceedings of the 58th International Convention of Society of Wood Science and Technology, June 7-12, 2015 – Grand Teton National Park, Jackson, Wyoming, USA. pp. 568-576.
    Author(s) Zelinka, Samuel L.; Quintana, José L. Colon; Glass, Samuel V.; Jakes, Joseph E.; Wiedenhoeft, Alex C.
    Year: 2015   view abstract, download publication »
    Title: Wood Structural Panel & Foam Insulation Systems: Hygrothermal Behavior & Lateral Load Resistance-Experimental Studies
    Source: Final Report - USDA Joint Venture Agreement 11-JV-11111136-070 APA -The Engineered Wood Association. 67 p.
    Author(s) Yeh, Borjen; Herzog, Benjamin J.; Glass, Samuel
    Year: 2015   view abstract, download publication »
    Publication Year: 2014
     
    Title: Investigation of Historic Equilibrium Moisture Content Data from the Forest Products Laboratory
    Source: USDA Forest Service, Forest Products Laboratory, General Technical Report, FPL-GTR-229, 2014; 37 p.
    Author(s) Glass, Samuel V.; Zelinka, Samuel L.; Johnson, Jay A.
    Year: 2014   view abstract, download publication »
    Title: The effect of moisture content on the corrosion of fasteners embedded in wood subjected to alkaline copper quaternary treatment
    Source: Corrosion Science, Volume 83, 2014; pp. 67-74.
    Author(s) Zelinka, Samuel L.; Glass, Samuel V.; Derome, Dominique
    Year: 2014   view abstract, download publication »
    Publication Year: 2013
     
    Title: Chapter 10: Enclosure--Building enclosure design for cross-laminated timber construction
    Source: In: CLT handbook: cross-laminated timber / edited by Erol Karacabeyli, Brad Douglas. -- U. S. ed. (Special publication, ISSN 1925-0495; SP-529E); 2013; 55 p.
    Author(s) Glass, Samuel V.; Wang, Jieying; Easley, Steve; Finch, Graham
    Year: 2013   view abstract, download publication »
    Title: Hygrothermal Anaylsis of Wood-Frame Wall Assemblies in a Mixed-Humid Climate
    Source: Forest Products Laboratory, Research Paper, FPL-RP-675, 2013; 27 p.
    Author(s) Glass, Samuel V.
    Year: 2013   view abstract, download publication »
    Title: Hygrothermal Simulation: A Tool for Building Envelope Design Analysis
    Source: Wood Design Focus, Volume 23, Number 3; Fall Issue 2013; pp 18-25.
    Author(s) Glass, Samuel V.; TenWolde, Anton; Zelinka, Samuel L.
    Year: 2013   view abstract, download publication »
    Title: Investigating Wind-Driven Rain Intrusion in Walls with the CARWASh
    Source: Published by ASHRE 2013, Thermal Performance of the Exterior Envelopes of Whole Buildings XII International Conference; 2013; 11 p.
    Author(s) Boardman, C.R.; Glass, Samuel V.
    Year: 2013   view abstract, download publication »
    Title: Mechanism of Transport Through Wood Cell Wall Polymers
    Source: JOURNAL OF FOREST PRODUCTS & INDUSTRIES, Volume 2, Number 6, 2013; pp. 10-13.
    Author(s) Jakes, Joseph E.; Plaza, Nayomi; Stone, Donald S.; Hunt, Christopher G.; Glass, Samuel V.; Zelinka, Samuel L.
    Year: 2013   view abstract, download publication »
    Title: Moisture in Crawl Spaces
    Source: Wood Design Focus, Volume 23, Number 3, fall issue 2013; pp. 11-17.
    Author(s) TenWolde, Anton; Glass, Samuel V.
    Year: 2013   view abstract, download publication »
    Publication Year: 2012
     
    Title: Build Green: Wood Can Last for Centuries
    Source: Forest Service, Forest Products Laboratory, General Technical Report, FPL-GTR-215, 2012: 27 p.
    Author(s) Clausen, Carol A.; Glass, Samuel V.
    Year: 2012   view abstract, download publication »
    Title: Examination of water phase transitions in Loblolly pine and cell wall components by differential scanning calorimetry
    Source: Thermochimica Acta, 533 (2012) 39-45. 10.1016/j.tca.2012.01.015
    Author(s) Zelinka, Samuel L.; Lambrecht, Michael J.; Glass, Samuel V.; Wiedenhoeft, Alex C.; Yelle, Daniel J.
    Year: 2012   view abstract, download publication »
    Publication Year: 2011
     
    Title: Combining hygrothermal and corrosion models to predict corrosion of metal fasteners embedded in wood
    Source: Building and Environment, 46 (2011) 2060-2068. doi:10.1016/j.buildenv.2011.04.017
    Author(s) Zelinka,Samuel L.; Derome, Dominique; Glass, Samuel V.
    Year: 2011   view abstract, download publication »
    Title: Insulating raised Floors in Hot, Humid Climates
    Source: LSU AgCenter Pub. 3187. Baton Rouge: Louisiana State University Agricultural Center. 2011
    Author(s) Glass, Samuel V.; Carll, Charles G.; Reichel, Claudette Hanks; Shupe, Todd F.; Wu, Qinglin; Curole, Jay P.; Voitier, Matthew D.
    Year: 2011   view abstract, download publication »
    Title: Moisture Meter Calibrations for Untreated and ACQ-Treated Southern Yellow Pine Lumber and Plywood
    Source: Journal of Testing and Evaluation, Vol. 40, No. 1 pp. 1-10; 2011 Paper IDJTE103895
    Author(s) Boardman, C.R.; Glass, Samuel V.; Carll, Charles G.
    Year: 2011   view abstract, download publication »
    Publication Year: 2010
     
    Title: .Wood Handbook, Wood as an Engineering Material (All Chapters)
    Source: Forest Products Laboratory. Wood handbook - Wood as an engineering material. General Technical Report FPL-GTR-190. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory: 508 p. 2010
    Author(s) Bergman, Richard; Cai, Zhiyong; Carll, Charlie G.; Clausen, Carol A.; Dietenberger, Mark A.; Falk, Robert H.; Frihart, Charles R.; Glass, Samuel V.; Hunt, Christopher G.; Ibach, Rebecca E.; Kretschmann, David E.; Rammer, Douglas R.; Ross, Robert J.; Star
    Year: 2010   view abstract, download publication »
    Title: A laboratory facility for research on wind-driven rain intrusion in building envelope assemblies
    Source: 2009 Wood and Fiber Product Seminar: VTT and USDA Joint Activity, September 22-23, 2009. Edited by Ali Harlin & Minna Vikman. (VTT Symposium 263) Helsinki, Finland : VTT, c2010. 176, A3 p. ISBN 978-951-38-7589-3.
    Author(s) Glass, Samuel V.
    Year: 2010   view abstract, download publication »
    Title: Chamber for Analytic Research on Wall Assemblies Chamber for Analytic Research on Wall Assemblies Exposed to Simulated Weather
    Source: Forest Products Laboratory Factsheet 0016. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory; 2010. 2 p.
    Author(s) Glass, Samuel V.
    Year: 2010   view abstract, download publication »
    Title: Estimating Foundation Water Vapor Release Using a Simple Moisture Balance and AIM-2: Case Study of a ContemporaryWood-Frame House
    Source: In: Thermal Performance of the Exterior Envelopes of Whole Buildings XI International Conference,
    Author(s) Boardman, C.R.; Glass, Samuel V.; Carll, Charles G.
    Year: 2010   view abstract, download publication »
    Title: From Laboratory Corrosion Tests to a Corrosion Lifetime for Wood Fasteners: Progress and Challenges
    Source: In: Proceedings of the International Convention of Society of Wood Science and Technology and United Nations Economic Commission for Europe - Timber Committee October 11-14, 2010, Geneva, Switzerland; 2010
    Author(s) Zelinka, Samuel L.; Derome, Dominique; Glass, Savuel V.
    Year: 2010   view abstract, download publication »
    Title: Moisture Performance of Insulated Raised, Wood-Frame Floors: A Study of Twelve Houses in Southern Louisiana
    Source: In: Thermal Performance of the Exterior Envelopes of Whole Buildings XI International Conference,
    Author(s) Glass, Samuel V.; Carll, Charles G.; Curole, Jay P.; Voitier, Matthew D.
    Year: 2010   view abstract, download publication »
    Title: Water Vapor Sorption Isotherms for Southern Pine Treated with Several Waterborne Preservatives
    Source: ASTM Journal of Testing and Evaluation 38(4):521-525; 2010
    Author(s) Zelinka, Samuel L.; Glass, Samuel V.
    Year: 2010   view abstract, download publication »
    Title: Wood Handbook, Chapter 04: Moisture Relations and Physical Properties of Wood
    Source: General Technical Report FPL-GTR-190. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory: 4-1 - 4-19. Chapter 4.
    Author(s) Glass, Samuel V.; Zelinka, Samuel L.;
    Year: 2010   view abstract, download publication »
    Publication Year: 2009
     
    Title: Development of Moisture Management Instructional Videos
    Source: FPL RIP-4716-006
    Author(s) Glass, Samuel; Peavey, John;
    Year: 2009   view abstract, download publication »
    Title: Moisture Meter Calibration for Untreated and ACQ-Treated Southern Yellow Pine Plywood
    Source: USDA Forest Service, Forest Products Laboratory, FPL-RN-0312, March 2009
    Author(s) Samuel V. Glass; Charles G. Carll
    Year: 2009   view abstract, download publication »
    Title: Occurrence of Mold in a Two-Story Wood-Frame House Operated at Design Indoor Humidity Levels
    Source: United States Department of Agriculture, Forest Service, Forest Products Laboratory, FPL-GTR-186, October 2009
    Author(s) Carol Clausen; Jessie Glaeser; Samuel Glass; Charles Carll
    Year: 2009   view abstract, download publication »
    Title: Review of Moisture Balance Models for Residential Indoor Humidity
    Source: Citation: Glass, S.V.; TenWolde, A. Review of moisture balance models for residential indoor humidity. In: Proceedings, 12th Canadian Conference on Building Science and Technology, Vol. 1:231-245; 2009
    Author(s) Glass, Samuel V.; Ten Wolde, Anton
    Year: 2009   view abstract, download publication »
    Publication Year: 2008
     
    Title: A percolation model for electrical conduction in wood with implications for wood-water relations
    Source: Wood and fiber science. Vol. 40, no. 4 (Oct. 2008): Pages 544-552.
    Author(s) Zelinka, Samuel L.; Glass, Samuel V.; Stone, Donald S.
    Year: 2008   view abstract, download publication »
    Publication Year: 2007
     
    Title: Measurements of moisture transport in wood-based materials under isothermal and nonisothermal conditions
    Source: 30 Years of Research : Proceedings, Thermal Performance of the Exterior Envelopes of Whole Buildings X : U.S. Department of Energy, Oak Ridge National Laboratory : Buildings X Conference, Dec. 2-7, 2007. Atlanta, Ga. : American Society for Heating, Refri
    Author(s) Glass, Samuel V.
    Year: 2007   view abstract, download publication »
    Title: Review of in-service moisture and temperature conditions in wood-frame buildings
    Source: General Technical Report FPL-GTR-174. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory. 53 pages.
    Author(s) Glass, Samuel V.; TenWolde, Anton
    Year: 2007   view abstract, download publication »
     
    Publication Year: 2015
    Exterior walls of test huts viewed from the southeast. Lance Barta, Home Innovation Research Labs
    Highlight ID: 617
    Managing Moisture in Energy-efficient Wall Systems

    Moisture durability is critical for design and construction of energy-efficient buildings. Field measurements of moisture characteristics for highly insulated walls in mixed-humid climates are lacking. Researchers from the Forest Service's Forest Pro ...

     
    Publication Year: 2014
    Computer-based simulation tools allow designers to gauge the risk of moisture problems in building design. Tivoli Gough, USDA Forest Service
    Highlight ID: 581
    Possibilities and Pitfalls of Computer Simulation for Building Moisture Analysis

    Moisture problems are much less expensive to correct in the building design phase than after the building is constructed. Computer-based simulation tools allow designers to gauge the risk of moisture problems. Although simulation can be useful as a d ...

     
    Publication Year: 2013
    Installation of a cross-laminated timber panel for Promega building in Fitchburg, Wisconsin. Steve Schmieding, USDA Forest Service
    Highlight ID: 439
    Wood Construction Goes Beyond Its Traditional Roots

    As interest in sustainable building options continues to grow. Wood construction is going beyond its traditional roots in housing and expanding into mid-rise, high-rise, and non-residential applications. To support this trend, a new U.S. guide for th ...

     
    Publication Year: 2011
    Homes with raised floors in New Orleans, Louisiana. Samuel V. Glass, Forest Service
    Highlight ID: 286
    Moisture Control in Crawl Spaces in Louisiana

    Builders and homeowners in the Gulf Region often ask how to insulate a crawl space to avoid moisture problems. The Forest Products Laboratory (FPL), in cooperation with Louisiana State University Agricultural Center, monitored conditions in a dozen h ...

     
    Publication Year: 2010
    Schematic of the innovative impedance spectroscopy experiments performed at the US Forest Service Forest Products Laboratory that showed electrical conduction in wood is governed by percolation theory. Forest Service
    Highlight ID: 154
    A percolation model for water and electrical conduction in wood with implications for durability

    Recently, researchers at the Forest Products Laboratory and University of Wisconsin have developed a new model of electrical conduction in wood that provides a good fit to experimental data, offers insight into the mechanism of conduction, and integr ...


    Highlight ID: 170
    Centennial Edition, Wood Handbook—Wood as an Engineering Material

    The Wood Handbook—Wood as an Engineering Material serves as a primary reference document for a wide variety of users-from the general public through architects and design engineers who use wood in highly engineered structures. ...

    Physical phenomena described by mathematical models for indoor humidity in homes. Forest Service
    Highlight ID: 153
    Modeling indoor humidity in homes

    Indoor humidity levels in a home influence not only occupant comfort and indoor air quality but also the durability of the building, especially in cold climates. Researchers at the Forest Products Laboratory undertook a critical assessment of the lit ...

    TitleDate Posted
    Paper Poised to Fill New Gaps as Insulation:

    Buildings account for 40% of energy usage in the United States. In a world that stresses increased levels of responsible energy use, ensuring that new and existing construction is as efficient as possible will be vital to meeting our nation's sustainability goals. Wood has long been the material of ...

    01-21-2016

    Radon is the second leading cause of lung cancer.January is National Radon Action Month:

    The hustle and bustle of the holiday season is over and here in Wisconsin, the weather is cold. Our doors and windows are closed, and that’s one of the first steps in getting good results from a radon test...

    01-21-2015

    Vctorian-houseWhat Can Be Done to Promote Long Service Life from Wood?

    Build Green: Wood Can Last for Centuries provides many helpful tips for the homeowners...

    07-14-2014

    wood-fenceTips for Protecting Other Wood Structures

    According to Build Green: Wood Can Last for Centuries, the same principles of decay that are applicable to buildings also apply to wooden decks, fences, boardwalks, pergolas, gazebos, planters, and playground structures...

    07-10-2014

    Paint-sealDoes Painting Protect from Wood Decay?

    Carol Clausen and Samuel Glass tell us about another easy and inexpensive trick for preserving your building projects in Build Green: Your Wood Can Last for Centuries. Coatings that form a moisture-impervious film are effective in preventing decay if the seal where two pieces of wood are joined is k...

    07-08-2014

    dry-rotKeeping Wood Dry Isn't Always Enough:

    Build Green: Wood Can Last for Centuries by Carol Clausen and Samuel Glass tells us that most wood-decay problems only occur when decay fungi grow in wet wood. But one kind of fungus is uniquely capable of transporting its own water from a source of moisture (usually soil) into wood that is typical...

    07-07-2014

    floor replacement fig 16Condensed Moisture-Another Source of Wood Decay

    Build Green: Wood Can Last for Decades warns the homeowner of yet another danger: moisture that can condense, accumulate in wood, and lead to decay in walls, attics, and crawl spaces.The causes of this condensation are a source of moisture, a way for moisture to be transported into wood, and a lack ...

    06-06-2014

    EasleyWood Decay from Water Flowing off the Roof

    In Build Green: Wood Can Last for Centuries, Carol Clausen and Sam Glass write about yet another way that moisture decays wood. Many decay problems are caused by roof construction that does not allow rain to move off the roof and away from the house. In some houses, water flow over the roof is inter...

    04-25-2014

    houghtonRain Seepage--Another Source of Wood Decay

    Build Green: Wood Can Last for Centuries by Carol Clausen and Sam Glass tells about how rain seepage can cause wood decay. Decay frequently occurs in joints, where boards or beams are joined together, while the rest of the structure remains sound. One reason is that water gets trapped in the joints....

    04-18-2014

    Rain-mapInvestigating Historic Wood Moisture Data

    Wood and water have a delicate relationship. For over a century, the Forest Products Laboratory (FPL) has provided data on how wood products and moisture interact under various conditions. This includes equilibrium moisture content (EMC) values of wood for given temperature and relative humidity con...

    04-16-2014

    Rain-mapFrequent Rains:

    In Build Green: Wood Can Last for Centuries, Carol Clausen and Sam Glass remind readers that moisture causes wood to decay, and another source of moisture that the homeowner must guard against is frequent rains...

    03-26-2014

    CLT offers outstanding structural, thermal, and acoustic performance.Opportunity Knocks…on Wood

    Research at FPL often works toward moving new or improved wood products into mainstream use. Cross-laminated timber (CLT) is one such product. CLT is a solid panel made of bonded layers of lumber intended for roof, floor, or wall applications. It is a highly “green” material made from an abund...

    06-27-2013

    Supervisory Microbiologist Carol Clausen briefs Secretary Vilsack on FPL’s Moisture Test Facility.Protecting Wood Buildings from Moisture Damage

    Protecting wood against moisture damage is key to long-lasting durability for wood structures. In "Build Green: Wood can last for Centuries," FPL wood-protection experts Carol Clausen and Samuel Glass explain why wood decays and how homeowners can best protect against moisture-related damage...

    06-03-2013