WOOD PRODUCTS: SUCCESSIVE RECYCLING - FPInnovations
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KEY MESSAGES • The manufacture of glue-laminated timber (GLT) from wood demolition debris is possible, but its mechanical resistance is 33% lower than what is required by CSA Standard O86 2014. • Manufacture of OSB panels from GLT panels fabricated with demolition wood meets the requirements of CSA Standard 0437.1. • The carbon footprint of GLT and OSB produced from 100% recycled fibres is 71% lower than for products made from virgin fibre. • Producing panels from particles that have served successively in GLT from debris wood and OSB is possible if they are mixed with 80% virgin fibre. The carbon footprint of particle board containing twice recycled wood is 38% lower than a panel made from virgin fibre. RECOMMENDATIONS • Encourage source separation in order to minimize contamination that impacts end-of-life product recycling. • Support the creation of an industrial structure or value chain for demolition wood, in particular by evaluating the possibility of creating a collaborative platform for building deconstruction. • Capitalize on recycled content requirements of building evaluation systems (e.g. LEED) and other specifications through incentives and other measures. CONTEXT The construction industry generates more than 40% of waste materials in Quebec, half of which are wood products. A major proportion of the volumes generated is used in energy recovery or are recycled and used in wood panels and other products. Extending the useful life of the carbon contained in wood fibre from the time the tree is harvested until the carbon is re-emitted into the atmosphere would mean increasing the supply of wood for innovative, low-carbon-footprint products. Reuse and recycling of wood at the end of its useful life through multiple successive stages prolongs its use and further reduces the already relatively low carbon footprint of wood construction products. WOOD PRODUCTS: SUCCESSIVE RECYCLING RELATIVE CARBON FOOTPRINT (%) OF OSB PANELS 29% 100% 18% For more information: Essoua, Géraud and Lavoie, Patrick. Étude de faisabilité technico- économique et empreinte carbone du recyclage du bois issu de la construction, rénovation et démolition (CRD). FPInnovations, 2019. Virgin OSB 100% recycled OSB Market substitution recycled OSBC
Transcript of WOOD PRODUCTS: SUCCESSIVE RECYCLING - FPInnovations
KEY MESSAGES• The manufacture of glue-laminated timber (GLT) from wood demolition
debris is possible, but its mechanical resistance is 33% lower than what is required by CSA Standard O86 2014.
• Manufacture of OSB panels from GLT panels fabricated with demolition wood meets the requirements of CSA Standard 0437.1.
• The carbon footprint of GLT and OSB produced from 100% recycled fi bres is 71% lower than for products made from virgin fi bre.
• Producing panels from particles that have served successively in GLT from debris wood and OSB is possible if they are mixed with 80% virgin fi bre. The carbon footprint of particle board containing twice recycled wood is 38% lower than a panel made from virgin fi bre.
RECOMMENDATIONS
• Encourage source separation in order to minimize contamination that impacts end-of-life product recycling.
• Support the creation of an industrial structure or value chain for demolition wood, in particular by evaluating the possibility of creating a collaborative platform for building deconstruction.
• Capitalize on recycled content requirements of building evaluation systems (e.g. LEED) and other specifi cations through incentives and other measures.
CONTEXTThe construction industry generates more than 40% of waste materials in Quebec, half of which are wood products. A major proportion of the volumes generated is used in energy recovery or are recycled and used in wood panels and other products.
Extending the useful life of the carbon contained in wood fi bre from the time the tree is harvested until the carbon is re-emitted into the atmosphere would mean increasing the supply of wood for innovative, low-carbon-footprint products.
Reuse and recycling of wood at the end of its useful life through multiple successive stages prolongs its use and further reduces the already relatively low carbon footprint of wood construction products.
WOOD PRODUCTS: SUCCESSIVE RECYCLING
RELATIVE CARBON FOOTPRINT (%) OF OSB PANELS
29%
100%
18%For more information: Essoua, Géraud and Lavoie,
Patrick. Étude de faisabilité technico-économique et empreinte carbone du recyclage du bois issu de la construction, rénovation et démolition (CRD). FPInnovations, 2019.
Virgin OSB
100% recycled OSB
Market substitution recycled OSBC
