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20-year evaluation of millwork preservatives

https://library.fpinnovations.ca/fr/permalink/fpipub4412
Auteur
Ingram, Janet K.
Morris, Paul I.
Date
January 1999
Édition
41191
Genre du document
Research report
Domaine
Sustainable Construction
Auteur
Ingram, Janet K.
Morris, Paul I.
Date
January 1999
Édition
41191
Genre du document
Research report
Description physique
5 p.
Secteur
Wood Products
Domaine
Sustainable Construction
Champ de recherche
Advanced Wood Materials
Sujet
Preservatives tests
Preservatives
Preservation
Série
W-1548
Localisation
Vancouver, British Columbia
Langue
English
Résumé
A field test of six millwork preservatives has been ongoing for twenty years, using a simulated window corner, or "Y-joint", as the test unit. Three preservatives provided excellent protection to white pine and white spruce: 5% pentachlorophenol in varsol, phenyl mercury oleate in varsol, and 0.75% oxine copper in varsol.
Preservatives - Tests
Preservation - Durability
Documents
Moins de détails

1999 strategy for durability research and technology transfer

https://library.fpinnovations.ca/fr/permalink/fpipub5885
Auteur
Morris, Paul I.
O'Connor, J.
Jones, E.
Boudreau, M.
Date
August 1999
Édition
41223
Genre du document
Research report
Domaine
Sustainable Construction
Auteur
Morris, Paul I.
O'Connor, J.
Jones, E.
Boudreau, M.
Date
August 1999
Édition
41223
Genre du document
Research report
Description physique
24 p.
Secteur
Wood Products
Domaine
Sustainable Construction
Champ de recherche
Advanced Wood Materials
Sujet
Research
Série
W-1685
Localisation
Vancouver, British Columbia
Langue
English
Résumé
The objective of this initiative is to re-evaluate Forintek's research strategy and the Canadian Wood Council's technology transfer strategy in durability of wood products and systems in the light of changing industrial, regulatory, environmental, and social factors. Forintek and the CWC chose to undertake this process jointly, in order to develop well-matched parallel activities that are mutually supportive and grounded in common underlying objectives. In this way, both organizations can most effectively and efficiently address our members' needs in an area of growing challenges for the wood industry. The first step in the strategic planning process was the creation of a joint CWC/Forintek Durability Guidance Group. This group was canvassed for input on high priority issues related to wood durability. Forintek and CWC then developed ideas for deliverables or tasks in research and technology transfer, respectively. At this stage we are looking for input on the degree to which this draft strategy addresses industry needs.
Research - Durability
Documents
Moins de détails

Assessment of various composite floating flooring constructions

https://library.fpinnovations.ca/fr/permalink/fpipub5029
Auteur
Lefebvre, M.
Beauregard, R.
Date
April 1999
Édition
41872
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Lefebvre, M.
Beauregard, R.
Date
April 1999
Édition
41872
Genre du document
Research report
Description physique
18 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Wood flooring
Wood
Série
E-3274
Localisation
Sainte-Foy, Québec
Langue
English
Résumé
During the last decades, Engineered Wood Flooring and Laminated Flooring experienced dramatic increase in demand from consumers in Europe and Asia, and those two products have taken large market share to the traditional hardwood strip flooring and to other floor covering material like textile, vinyl, etc. In North America, these new multi-layer parquets are just taking off, in 1997, Engineered Wood Flooring share of hardwood flooring was 34% and growing fast. This compares with a market share of 67% in Europe. There appears to be much room for growth in North America. The rapid increase of hardwood flooring products in the world in recent years associated with the decrease of available hardwood raw material made the multi-layer and laminated flooring products interesting alternatives for the hardwood flooring industry. Canada is an important supplier of the hardwood raw material for the European production of both hardwood and EW Floorings. Since some volumes of EWF production from Europe are exported to North America, we do not see any reason why they should not be manufactured in Canada with a competitive advantage. The window of opportunity is there to be exploited. High Pressure Laminate flooring, a composite product made of High Density Fiberboard (HDF) overlaid by coated paper and presenting a very high-resistance surface finish, is also growing very fast in the U.S. The focus was less on this product in this report since contrarily to EWF, HPL flooring is already being produced in Canada. Also a high capacity for manufacturing this product is currently being built in S-E Asia and in China and we know these countries are low-cost producers, very hard to compete with. Standards and methods for testing such products were reviewed. It was observed that the European market is very much standard driven, German standards leading the way in that respect. North American are more driven by "lifetime limited warranties”, although some voluntary standards have been defined by the industry. In any case, all testing methods that were observed in these standards can be performed in Forintek materials testing laboratories. The main problems associated with such products are certainly their negative reaction to variation of moisture content. In this report, methods for predicting those reactions were elaborated in terms of quality of construction and performance. More specifically, testing methods were defined, tried and found to be effective to test surface planeity, gap formation associated with shrinkage and cupping. A process quality control method was also proposed to help eventual producers to control their gluing process. Certainly more research needs to be done to find the best parameters in terms of products and methods of production to develop high quality products that consumers will like to use in their home. Additional research is also required in order to find which backing and core materials could provide the future Canadian EWF industry a sustainable competitive advantage.
Engineered wood floors
Documents
Moins de détails

Biodeterioration of wood

https://library.fpinnovations.ca/fr/permalink/fpipub43004
Auteur
Morris, Paul I.
Date
January 1999
Genre du document
Presentation
Domaine
Sustainable Construction
Auteur
Morris, Paul I.
Date
January 1999
Genre du document
Presentation
Description physique
43 p.
Secteur
Wood Products
Domaine
Sustainable Construction
Champ de recherche
Building Systems
Sujet
Wood decay
Fungi
Preservatives
Preservation
Série
W-3085
W-3085.pdf
Langue
English
Résumé
Presentation Content § Wood chemistry and structure affecting durability § Natural durability of Canadian species § Organisms attacking wood § Types of decay fungi § Factors necessary for biodeterioration § Time required for decay to occur § Decay characteristics of Canadian softwoods § Other influences on decay initiation
Breaches in treated shell
Water traps
Impediments to drying
Documents
Moins de détails

Caractéristiques et utilisation du bois des clones de peupliers hybrides

https://library.fpinnovations.ca/fr/permalink/fpipub5041
Auteur
Chauret, Gilles
Koubaa, Ahmed
Zhang, S.Y. (Tony)
Date
April 1999
Édition
41885
Genre du document
Research report
Domaine
Sustainable Construction
Auteur
Chauret, Gilles
Koubaa, Ahmed
Zhang, S.Y. (Tony)
Date
April 1999
Édition
41885
Genre du document
Research report
Description physique
53 p.
Secteur
Wood Products
Domaine
Sustainable Construction
Champ de recherche
Advanced Wood Materials
Sujet
Wood structure
Wood
Populus
Hybrid
Série
E-3299
Localisation
Sainte-Foy, Québec
Langue
French
Résumé
Hybrid poplar - Wood structure
Documents
Moins de détails

Compte-rendu du séminaire sur la simulation dans l'industrie du sciage

https://library.fpinnovations.ca/fr/permalink/fpipub41900
Auteur
Grondin, F.
Drouin, N.
Bédard, P.
Goulet, P.
Date
October 1999
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Grondin, F.
Drouin, N.
Bédard, P.
Goulet, P.
Date
October 1999
Genre du document
Research report
Description physique
25 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Digitalization
Sujet
Simulation
Sawing
Optitek
Localisation
Sainte-Foy, Québec
Langue
French
Résumé
Optitek
Simulation
Sawing
Documents
Moins de détails

Culture collection of wood fungi

https://library.fpinnovations.ca/fr/permalink/fpipub41906
Auteur
Yang, D.-Q.
Clark, Jean E.
Date
March 1999
Genre du document
Research report
Domaine
Sustainable Construction
Auteur
Yang, D.-Q.
Clark, Jean E.
Collaborateur
Canada. Canadian Forest Service
Date
March 1999
Genre du document
Research report
Description physique
3 p.
Secteur
Wood Products
Domaine
Sustainable Construction
Champ de recherche
Advanced Wood Materials
Sujet
Glue
Canada
Série
CFS Simple Progress Report
E-3341
Localisation
Sainte-Foy, Québec
Langue
English
Résumé
Forintek Canada Corp - Fungi - Collections
Documents
Moins de détails

Decision aids for durable wood construction : review and redirection

https://library.fpinnovations.ca/fr/permalink/fpipub41201
Auteur
O'Connor, J.
Morris, Paul I.
Date
March 1999
Genre du document
Research report
Domaine
Sustainable Construction
Auteur
O'Connor, J.
Morris, Paul I.
Collaborateur
Canada. Canadian Forest Service.
Date
March 1999
Genre du document
Research report
Description physique
28 p.
Secteur
Wood Products
Domaine
Sustainable Construction
Champ de recherche
Advanced Wood Materials
Sujet
Building construction
Planning
Design
Moisture content
Série
Canadian Forest Service No. 19
Project No. 1052
W-1611
Localisation
Vancouver, British Columbia
Langue
English
Résumé
The project Decision Aids for Durable Wood Construction underwent a major review with the hiring of a new project leader (O'Connor) in September 1998. In consultation with the project liaisons, the work on this project since its start-up in 1993 was examined, the primary task of developing a computer-based tool for the building industry was reconsidered, the context of worldwide research into building envelope moisture failures was reviewed, and a revised project plan was proposed. Decision Aids was a self-contained project for its first three years, with efforts concentrated on knowledge acquisition, expert system experimentation and other foundation work for development of a computer tool. With a rise of interest in building envelope moisture failures across North America and elsewhere, Decision Aids activity shifted into a mode that was reactive to projects and events external to Forintek. This was necessary due to the level of effort external agencies, media and research labs were devoting to the topic. In particular, where the actions of outsiders began to have an influence on wood in construction, we found it critical to participate in order to ensure the fair and correct treatment of wood. The new project leader was asked to review the project and either get the project back on its original track or suggest a redirection. The project goal, to assist end users in best application of wood, was determined to be sound. In addition, the project leader recommended that resources continue to be allocated to participation in outside research efforts and other related activities. However, it was recommended that the project objective to develop computer-based decision tools be reassessed. Instead, the project leader recommended a course of action focused on tasks both shorter in term and smaller in scope, which will enable Forintek to deliver results better tailored to the immediate needs of industry in a time of building envelope moisture failure "crisis." The new project plan is split into two areas: 1) address building envelope moisture failures that are due to existing information not arriving in the right hands (i.e., a technology transfer problem); and 2) address building envelope moisture failures that are due to a lack of information (i.e., a research problem). The technology transfer area will create a formal plan for communication to the building industry, will enable Forintek to experiment with developing pathways to that new target audience, and will provide the means for the wood industry to provide helpful durability information to the public through a relatively neutral third party (Forintek). The research area will explore opportunities for limited scope experiments or collaborative field studies of wood system durability performance, with the intent of verifying or modifying codes, standards and best practice guides.
Documents
Moins de détails

Developing kiln drying schedules for the Alberta wood industry

https://library.fpinnovations.ca/fr/permalink/fpipub37757
Auteur
Garrahan, Peter A.
Date
March 1999
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Garrahan, Peter A.
Collaborateur
Alberta Department of Economic Development and Tourism
Date
March 1999
Genre du document
Research report
Description physique
20 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Drying
Kilns
Alberta
Série
W-2192
Localisation
Vancouver, British Columbia
Langue
English
Résumé
This project was initiated to provide technical assistance to the Alberta wood drying industry. The specific objective was to identify opportunities to improve product quality through modification of the drying schedules. Seven mills representing almost 50% of the solid, softwood lumber production in the province were selected for the project. All mills provided a great deal of cooperation and commitment to the project was excellent. In general, lumber drying operations in Alberta are in good physical condition and operating personnel have a sound knowledge of basic drying concepts. In general, drying schedules were found to be quite harsh. the specific concerns at most mills related to too rapid a heat-up rate and extremely low relative humidity at the end of the drying cycle. Most of the schedule modification called for more gradual and controlled heat-up rates with higher wet-bulb temperatures. The objective of this modification is to avoid setting up conditions othat promote variability in moisture content from board to board. Higher relative humidity is required at the end of the drying cycle to avoid over-drying faster drying boards. Achieving a reduction in final moisture content variability and a higher overall average moisture content should be the objective of drying schedule modifications. Mill visits were used not only to review drying schedules but also to conduct a brief inspection of drying practices and equipment. It would be unproductive to identify schedule modifications if there were obvious shortcomings in other areas of the operation that would make it difficult to implement or over-shadow the effect. The primary concern with drying equipment is the leakiness of the structures. A common recommendation to mills was to tighten up kiln doors and walls in order to retain more moisture in the kiln environment. Another area of concern was related to lumber handling operations. Most problems in this area could be addressed through educating and training staff working at stackers, handling material in the yard, or preparing loads for the kiln. Logging and log storage practices at all of the mills visited has a serious and detrimental impact on the drying operations. At most times of the year, operators are having to deal with a wood supply that has a mix of initial moisture content conditions. Most mills seem to manage the small percentage of balsam fir in their mix effectively. Some future gains may be achieved through refined presorting techniques that take into account initial MC variability as well as differing drying characteristics between species.
Kiln drying
Documents
Moins de détails

Drying issues related to structural engineered wood products

https://library.fpinnovations.ca/fr/permalink/fpipub41876
Auteur
Ngangué, Y.
Date
April 1999
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Ngangué, Y.
Date
April 1999
Genre du document
Research report
Description physique
10 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Wood
Drying
Série
E-3278
Localisation
Sainte-Foy, Québec
Langue
English
Résumé
Given the remarkable growth of engineered wood products (EWP) in recent years, and considering industry’s desire to maximise product recovery and value, Forintek undertook a literature search and mill visits to investigate drying practices in Eastern Canada regarding major engineered products (MSR lumber, finger-jointed studs, wood I-joists, glued-laminated beams), and how such practices affect manufacturing processes. The study revealed that most plants were equipped with on-line moisture detectors to reject undesirable pieces, but, with a few exceptions, little effort was made to adapt drying specifications to EWP requirements. The lumber used was generally dried to the same standards as commodity lumber (19 per cent maximum) even though high moisture contents caused pieces to be downgraded by MSR machines, and moisture content differentials between adjoining pieces was thought to be responsible for some poor finger-joints in structural studs. Based on the experience of some mills, questions were raised as to the effect of high-temperature drying on mechanical properties. However, attitudes were observed to be changing to a client focus as operations became better established, especially in integrated plants. Recommendations made to support improved returns through drying quality include investigation of 1) the effect of moisture content differentials on finger-joints, 2) optimum moisture contents and drying schedules for MSR production, and 3) the effect of high-temperature drying on I-beam flange material performance.
Engineered wood products
Drying
Structural Products
Documents
Moins de détails

59 notices – page 1 of 6.