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Evaluating fire performance of nail-laminated timber: surface flammability

https://library.fpinnovations.ca/en/permalink/fpipub52832
Author
Ranger, Lindsay
Dagenais, Christian
Date
March 2019
Material Type
Research report
Field
Sustainable Construction
Client: Forestry Innovation Investment Ltd. March 31, 2019 EVALUATING FIRE
Author
Ranger, Lindsay
Dagenais, Christian
Contributor
Forestry Innovation Investment Ltd.
Date
March 2019
Material Type
Research report
Physical Description
86 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Building construction
Fire
Nailing
Cross Laminated Timber (CLT)
Mechanical properties
Safety
Language
English
Abstract
The objective of this project is to establish fundamental fire performance data for the design and specification of NLT assemblies; this project specially addresses determining FSRs for NLT. The goal of this project is to confirm that NLT, when used as a mass timber element, has a lower FSR than standard thickness SPF boards when tested individually and flatwise. The project also considers how the surface profiles, design details, and the direction of an assembly might influence flame spread. This includes the evaluation of typical architectural features, such as a ‘fluted’ profile. Having this technical information will support project approvals for the use of NLT elements in larger and taller wood buildings, as well as provide scientific justification for Authorities Having Jurisdiction (AHJ) to review and accept this construction method. This research will provide the evidence for designers to demonstrate their design have met or exceeded fire safety requirements. Ultimately the intent is to expand the adoption of manufactured solid timber construction for larger and taller buildings, as well as for non-traditional wood markets (such as institutional or commercial buildings). Other aspects of this project (in separate reports) include evaluating fire resistance of NLT, and assessing how NLT charring rates might be affected by gaps between boards.
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