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15 records – page 1 of 2.

Acoustic performance of wood-frame buildings

https://library.fpinnovations.ca/en/permalink/fpipub42306
Author
Hu, Lin J.
Date
March 2005
Material Type
Research report
Field
Sustainable Construction
Author
Hu, Lin J.
Contributor
Canada. Canadian Forest Service
Date
March 2005
Material Type
Research report
Physical Description
44 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Acoustic
Series Number
Canadian Forest Service No. 3
Location
Sainte-Foy, Québec
Language
English
Abstract
Commercial and multi-family residential construction represents a growth area for the Canadian wood products industry. To capitalize on this opportunity, a thorough understanding of the necessary products and system attributes will be essential. Adequate levels of noise/sound control in multi-family buildings are mandatory requirements of building codes in Canada, the United States, Europe, and most developed Asian countries. In many jurisdictions, these requirements are as strictly enforced as those for structural sufficiency and fire safety. Much effort has been spent on evaluation of sound transmission class (STC) and impact sound insulation class (IIC) of floor and wall assemblies and on studies of flanking transmission in multi-family dwellings in Canada. However, continuing occupant complaints of poor acoustic performance in wood-frame buildings that appear to have been built according to wall and floor construction practices recommended in building codes suggest the existence of gaps in current noise control techniques. Forintek initiated this project to investigate the relative importance of noise transmission in wood-frame residential buildings in comparison with other building serviceability issues, and to conduct a pilot study to examine construction designs of wood-frame buildings that exhibit unsatisfactory and satisfactory noise control and to identify existing gaps in current noise control techniques. A literature review and survey of 123 occupants of wood-framed multi- and single-family residential buildings was conducted to determine the relative importance of noise transmission in comparison with other building serviceability attributes. Case studies were conducted on construction details and designs of six new wood-frame condominiums and one single family-house that were built according to code requirements and recommendations for controlling noise transmission. We found that the general public had high expectations regarding adequate acoustic privacy. Even single- family house builders considered low sound transmission important. The multi-family building occupants ranked “sound insulation” the most “important” serviceability attribute, while single-family occupants were most concerned with “water penetration and condensation”. The lowest level of “satisfaction” was given by all respondents to “noise transmission” for their current residences, including single-family occupants, who had ranked it as not being so “important”. The case studies revealed that, current construction practices were much more effective in controlling airborne sound transmission than impact noise. The footfall noise transmission from stairs through the walls is still an unresolved issue that is not considered in the current Canadian Building Code. The low frequency footfall noise transmission between vertically-stacked units was the common complaint in some of these buildings. With no requirement for impact sound insulation in the current National Building Code of Canada, and with our existing knowledge gap concerning low frequency footfall noise transmission problems and solutions to control them, builders, acoustics consultants and design engineers have simply tended to blame wood building materials for noise-related complaints. We concluded that if we are to satisfy the occupants of both single-and multi-family wood-frame buildings and to provide confidence for builders and design engineers in wood-frame construction with satisfactory acoustic performance, a much greater effort is needed to improve sound insulation including development of better sound insulated wood-frame systems and building materials as well as retrofitting techniques. Acoustic performance will be a critical factor for the wood products industry in gaining a greater share of the multi-family construction market and in competing with other building materials.
Acoustic emissions
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Air tightness of one type of hardboard siding: first of 2 reports

https://library.fpinnovations.ca/en/permalink/fpipub5904
Author
Onysko, D.M.
Jones, S.K.
Date
March 1988
Edition
41506
Material Type
Research report
Field
Sustainable Construction
Author
Onysko, D.M.
Jones, S.K.
Date
March 1988
Edition
41506
Material Type
Research report
Physical Description
32 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Siding
Measurement
Materials
Building materials
Building construction
Air
Series Number
CFS project no.15
Project no.4310C016
E-785
Location
Ottawa, Ontario
Language
English
Abstract
Air Leakage - Measurement
Siding - Hardboard
Building construction - Moisture determination
Building materials - Hardboard siding
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Air tightness of two walls sprayed with polyurethane foam insulation

https://library.fpinnovations.ca/en/permalink/fpipub5905
Author
Onysko, D.M.
Jones, S.K.
Date
March 1988
Edition
41507
Material Type
Research report
Field
Sustainable Construction
Author
Onysko, D.M.
Jones, S.K.
Date
March 1988
Edition
41507
Material Type
Research report
Physical Description
22 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Walls
Testing
Measurement
Materials
Building construction
Air
Series Number
CFS project no.15
Project no.4310C016
E-786
Location
Ottawa, Ontario
Language
English
Abstract
Foam, Urethane - Testing
Insulating Materials - Moisture - Measurement
Building construction - Light frame - Testing
Walls - Air Leakage
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Design construction and calibration of a chamber for testing the air tightness of full-sized wall sections : 1st of 2 reports

https://library.fpinnovations.ca/en/permalink/fpipub41484
Author
Onysko, D.M.
George, P.
Date
March 1987
Material Type
Research report
Field
Sustainable Construction
Author
Onysko, D.M.
George, P.
Date
March 1987
Material Type
Research report
Physical Description
23 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Walls
Testing
Measurement
Air
Series Number
CFS project no.15
Project no.4310016
E-506
Location
Ottawa, Ontario
Language
English
Abstract
Walls - Air Leakage
Walls - Testing
Air Leakage - Measurement
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Effect of air pollution on wood production and quality

https://library.fpinnovations.ca/en/permalink/fpipub37177
Author
Keith, C.T.
Date
March 1987
Material Type
Research report
Field
Sustainable Construction
Author
Keith, C.T.
Date
March 1987
Material Type
Research report
Physical Description
1 v.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Wood quality
Wood
Vegetation
Quality control
Qualitative analysis
Pollution
Air pollution
Air
Series Number
CFS No. 36;04-55-12-102
W-446
Location
Ottawa, Ontario
Language
English
Abstract
Wood quality
Air pollution - Damage to vegetation
Air pollution - Effects
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Effect of air pollution on wood production and quality

https://library.fpinnovations.ca/en/permalink/fpipub38141
Author
Keith, C.T.
Date
March 1987
Material Type
Research report
Field
Sustainable Construction
Author
Keith, C.T.
Date
March 1987
Material Type
Research report
Physical Description
60 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Wood quality
Wood
Quality control
Qualitative analysis
Pollution
Air pollution
Air
Acid
Series Number
CFS project no.36
Project no.5512102
E-502
Location
Ottawa, Ontario
Language
English
Abstract
Wood, effect of acid deposition on
Wood quality
Air pollution - Effects
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Experiments on drying of framing and air leakage of joints in wall sheathing

https://library.fpinnovations.ca/en/permalink/fpipub5907
Author
Onysko, D.M.
Jones, S.K.
Date
March 1989
Edition
41534
Material Type
Research report
Field
Sustainable Construction
Author
Onysko, D.M.
Jones, S.K.
Date
March 1989
Edition
41534
Material Type
Research report
Physical Description
22 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Wood
Shrinkage
Measurement
Air
Series Number
CFS project no.12
Project no.4310C016
E-1015
Location
Ottawa, Ontario
Language
English
Abstract
Air Leakage - Measurement
Framing (Building), Wood - Shrinkage
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Hardwood Initiative - Part 5: Development of new processes and technologies in the hardwood industry (Project 16) ; Testing the impacts of tree and stand attributes on the variability of acoustic velocity in standing trees (ST300) and logs (HM200)

https://library.fpinnovations.ca/en/permalink/fpipub5733
Author
Ung, C.-H.
Duchesne, I.
Guo, X.J.
Swift, E.
Date
January 2011
Edition
39324
Material Type
Research report
Field
Sustainable Construction
Author
Ung, C.-H.
Duchesne, I.
Guo, X.J.
Swift, E.
Date
January 2011
Edition
39324
Material Type
Research report
Physical Description
6 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Velocity
Hardwoods
Acoustic
Series Number
Transformative Technologies Program ; Project No. TT5.15
201002825
Location
Québec, Québec
Language
English
Abstract
Hardwood Initiative Project is based on two paradigms. First, the end-use potential and value of a wood product basket can be determined by the properties of its wood and should be quantified as much as possible before trees are harvested. Second, as the correlations between site conditions and wood fibre attributes can be changed by silvicultural treatments, it would be possible to optimize the wood production in terms of quantity and quality through a better understanding of silvicultural impacts on changes in wood fibre properties. This document presents the preliminary results of a research component of the project related to acoustic velocity. It focuses on testing the impacts of tree and stand attributes on the variability of non-destructive velocity (ST300 non-destructive measurement in standing tree) and of destructive velocity (HM200 destructive measurement in log). The acoustic measurements were conducted in 30 plots of sugar maple mixed with yellow birch in New Brunswick. Among the trees measured, 64 trees have been subjected to both non-destructive and destructive velocity measurement. Regression analysis by mixed model showed no significant impact of stand attributes (stand basal area and stand height) on the variation of both velocities. In addition, the defects represented by stem deformation, hole, split, wound, and stump swelling, had no significant impact on both velocities. By cons, the test showed a significant correlation between both velocities and dbh and light crown area of the tree. Non-destructive velocity was better explained by dbh and light crown than the destructive velocity. These results open the potential to produce an equation to predict the non-destructive acoustic velocity of the tree using simple tree attributes (e.g., dbh and light crown) as predictors, and to prescribe the thinning intensity for a desired level of velocity and then a desired level of wood density or stiffness. Full title: Hardwood Initiative - Part 5: Development of new processes and technologies in the hardwood industry (Project 16) : Testing the impacts of tree and stand attributes on the variability of acoustic velocity in standing trees (ST300) and logs (HM200)
Hardwoods
Acoustic velocity
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Instrumentation for monitoring performance in a six-storey building in Vancouver built for high energy performance

https://library.fpinnovations.ca/en/permalink/fpipub7512
Author
Wang, Jieying
Thomas, Tony
Date
March 2018
Edition
49833
Material Type
Research report
Field
Sustainable Construction
Author
Wang, Jieying
Thomas, Tony
Contributor
Natural Resources Canada. Canadian Forest Service
Date
March 2018
Edition
49833
Material Type
Research report
Physical Description
24 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Monitoring
Performance
Buildings
Energy
Moisture content
Air
Series Number
Transformative Technology ; TT 2018
Language
English
Abstract
This report documents the instrumentation installed for monitoring moisture, indoor air quality and differential movement performance in a six-storey building located in the City of Vancouver. The building has five storeys of wood-frame construction above a concrete podium, providing 85 rental units for residential and commercial use. It was designed and built to meet the Passive House standard and, once certified, will be the largest building in Canada that meets this rigorous energy standard. Although the design and construction focused on integrating a number of innovative measures to improve energy efficiency, much effort was also made to reduce construction costs. One example of the design measures is the use of a highly insulating exterior wall assembly that integrates rigid insulation between two rows of wall studs as interior air and vapour barriers. This monitoring study aims to generate data on long-term performance as part of FPInnovations’ effort to assist the building sector in developing durable and energy efficient wood-based buildings, which is expected to translate into reduced energy consumption and carbon emissions from the built environment. The monitoring focuses on measuring moisture performance of the building envelope (i.e., exterior walls, roof, and sill plates); indoor environmental quality including temperature, humidity, and CO2; and vertical differential movement between exterior walls and interior walls below roof/roof decks. In total, 79 instruments were installed during the construction. The next steps of this study will focus on collecting and analysing data from the sensors installed, and assessing performance related to the building envelope and vertical differential movement. FPInnovations will also collaborate with CanmetENERGY of Natural Resources Canada to monitor heat recovery ventilators and to assess whole-building energy efficiency and occupant comfort. This is expected to start after the mechanical systems are fully commissioned during occupancy. Results of these upcoming phases of work will be published in future reports.
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Moisture/thermal performance of walls as affected by air tightness : a progress report

https://library.fpinnovations.ca/en/permalink/fpipub41546
Author
Onysko, D.M.
Date
March 1990
Material Type
Research report
Field
Sustainable Construction
Author
Onysko, D.M.
Date
March 1990
Material Type
Research report
Physical Description
26 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Walls
Thermal analysis
Performance
Air
Series Number
CFS project no.8
E-1210
Location
Ottawa, Ontario
Language
English
Abstract
Walls - Air Tightness
Walls - Moisture
Walls - Thermal Performance
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15 records – page 1 of 2.