Abstract
Panelized construction is gaining popularity within the industry as a primary construction method. In panelized construction, a building model is subdivided into subassemblies such as wall panels, floor panels, and volumetric roof modules for the purpose of manufacturing. Although this construction method is faster and offers many advantages compared to the traditional stick-built process, it is classified as partial panelized construction because the roofs of light-frame buildings are often either prefabricated as a single volumetric module or built on site. In this study, a novel roof system is proposed to improve the productivity of the panelized construction process for light wood-frame residential buildings. This unique system uses a holistic approach to design several roof components in consideration of structural requirements, manufacturing efficiency, and on-site installation sequence. This new system has the potential to eliminate the need for traditional wood truss-based roof assembly, allowing home manufacturers to produce the roof component in-house using their existing production facility. The proposed system subdivides the actual roof shape into several prefabricated panels, e.g., roof panels, ceiling frames, support walls, and gable end. The roof panels and support wall are produced in the wall production line using laminated strand lumber (LSL) and oriented strand board (OSB). These panels are then connected using efficient connection systems. A case study of a gable roof panel is presented in this paper to demonstrate implementation of the proposed approach. The results show that the gable type roof can be produced using typical wall and floor production lines with minimum effort for on-site installation by incorporating a new efficient connection design.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
ASTM (2012) Standard test methods for mechanical fasteners in wood. Designation: D 1761–12
ASTM (2020) Evaluating properties of wood-base fiber and particle panel materials. Designation: D1037−12
ACQBUILT (2019) ACQBUILT Inc. company database and personal visits for images. http://www.acqbuilt.com/
Canadian Wood Council (CWC) (2014) Engineering guide for wood frame construction. 2014 edn, CWC, Ottowa, Canada
CSA (2019) CSA O86-19. Engineering design in wood. CSA Group, Mississauga
Canadian Construction Materials Centre (CCMC) (2019) Evaluation report CCMC 12627-R TimberStrand LSL. https://www.weyerhaeuser.com/application/files/8715/6115/1801/12627-R.pdf. Accessed 2 Jan 2020
Goodier C, Gibb A (2007) Future opportunities for offsite in the UK. Constr Manag Econ 25(6):585–595
Islam MS, Islam MN, Alam M (2017) Properties of oriented strand board (OSB), and timber to evaluate the stiffness of timber I-Joist. In: CSCE conference May 31–June 3 2017,Vancuver, Canada
Islam MS, Chui YH, Altaf SM (2021) A holistic design approach for innovative panelized light-wood frame roof construction. In: World conference on timber engineering (WCTE) 2021, 9–12 August, Santiago, Chile
Karacabeyli E, Lau P, Henderson CR, Meakes FV, Deacon W (1996) Design rated oriented strandboard in CSA standards. Can J Civ Eng 23(2):431–443
Moses DM, Prion HGL (2002) Anisotropic plasticity and the notched wood shear block. For Prod J 52(6):43–54
MBI (2015) First, let’s describe what modular construction is. http://www.modular.org/htmlPage.aspx?name=why_modular. Accessed 9 Apr 2019
Niederwestberg J, Zhou J, Chui YH, Gong M (2018) Shear properties of innovative multi-layer composite laminated panels. In: Proceeding of World Conference on Timber Engineering, Korea National Institute of Forest Science, Seoul
Pan W, Goodier C (2012) House-building business models and off-site construction take-up. J Archit Eng 18(2):84–93
Plesnik T, Erochko J, Doudak G (2016) Nailed connection behaviour in light-frame wood shear walls with an intermediate layer of insulation. ASCE J. Struct. Eng. 142(7):04 016045
Shivarudrappa R, Bryant GN (2013) Sensitivity of load distribution in light-framed wood roof systems due to typical modeling parameters. J Perform Constr Facil 27(3):222–234
Satheeskumar Henderson NDJ, Ginger JD, Wang CH (2017) Three-dimensional finite-element modeling and validation of a timber-framed house to wind loading. J. Struct. Eng.143(9):4017112
Spasojevic M (2019) Structural and Hygrothermal Performance of Light Wood-Frame Walls with Insulated Sheathing. Thesis University of Alberta, MSc
Vessby J, Erik S, Olsson A (2010) Coupled and uncoupled nonlinear elastic finite element models for monotonically loaded sheathing-to-framing joints in timber-based shear walls. Eng Struct 32(11):3433–3442
Zhu EC, Guan ZW, Rodd PD, Pope DJ (2005) A constitutive model for OSB and its application in finite element analysis. Holz Roh- Werkst 63(2):87–93
Acknowledgements
We thank ACQBUILT Inc., Rothoblaas and Simpson Strong-Tie Inc. for material supplies and technical support. This work was supported by a grant from the Natural Sciences and Engineering Research Council of Canada through the Engage Grant and Industrial Research Chair programs.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2022 Canadian Society for Civil Engineering
About this paper
Cite this paper
Islam, M.S., Chui, Y.H., Al-Hussein, M., Altaf, M.S. (2022). A New Panelized Roof Design Approach for Offsite Fabrication of Light-Frame Wood Residential Construction Projects. In: Walbridge, S., et al. Proceedings of the Canadian Society of Civil Engineering Annual Conference 2021. CSCE 2021. Lecture Notes in Civil Engineering, vol 244. Springer, Singapore. https://doi.org/10.1007/978-981-19-0656-5_38
Download citation
DOI: https://doi.org/10.1007/978-981-19-0656-5_38
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-19-0655-8
Online ISBN: 978-981-19-0656-5
eBook Packages: EngineeringEngineering (R0)