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The purpose of this paper is to identify the most influential buildings elements in term of the cost for timber restoration works.

The research employed the case studies methods with questionnaires surveys. Two case studies were chosen and questionnaire surveys were distributed to contractors and consultation companies. The cost was identified based on the elemental cost analysis of historic timber buildings.

The restoration of historic timber buildings in Malaysia has grown rapidly, especially in the UNESCO world heritage sites, Melaka and Penang. Data obtained on the restorations of timber buildings show that the most influential elements were upper floors, roofs and walls. Termites’ invasions and the lack of building analysis were found to be the major issue in timber restoration works. In addition, the availability of timber material contributed significantly to the increase of cost for restoration works.

The cost for every element was identified and was used as a reference for new restorations projects of historical, timber buildings. This paper also highlighted the causes for the problems and the factors affecting the cost of timber restoration works. These data are useful information, especially for surveyors and contractors who are involved in the restoration of historic timber buildings. Maintaining or replacing these elements with other material can help to minimise the restoration cost of timber buildings in Malaysia.

Discusses the means and methods of detecting timber decay and damp, briefly outlining the historic use of wood in the construction of dwellings and the role of the timber infestation surveyor. Details the process of a thorough inspection, both external and internal, suggesting that particular note should be taken of high earth or path levels, gaps round window frames, broken guttering, rainwater spillage, cracked renderings, missing slates, defective linings and blocked outlets in gutters, blocked airbricks and sagging roof tiles. Concentrates on fungal and insect damage and stresses the results of dampness. Discusses the importance of thoroughness.

Since the time of primitive man, timber has remained the most useful and versatile of all naturally available materials. Its obvious aesthetic value makes it irreplaceable in the manufacture of fine musical instruments, furniture and great works of sculpture, but its greatest use is in the construction of our dwellings. Whether used in its almost natural state to construct a forester's log cabin, or sliced up into convenient pieces to build most of the world's homes, it is unsurpassed for versatility, ease of working and mechanical strength.

Cross-laminated timber (CLT) is an innovative construction material that provides a balanced mix of structural stiffness, fabrication flexibility and sustainability. CLT development and innovation diffusion require close collaborations between its supply chain architectural, engineering, construction and manufacturing (AECM) stakeholders. As such, the purpose of this study is to provide a preliminary understanding of the knowledge diffusion and innovation process of CLT construction.

The study implemented a longitudinal social network analysis of the AECM companies involved in 100 CLT projects in the UK. The project data were acquired from an industry publication and decoded in the form of a multimode project-company network, which was projected into a single-mode company collaborative network. This complete network was filtered into a four-phase network to allow the longitudinal analysis of the CLT collaborations over time. A set of network and node social network analysis metrics was used to characterize the topology patters of the network and the centrality of the companies.

The study highlighted the scale-free structure of the CLT collaborative network that depends on the influential hubs of timber manufacturers, engineers and contractors to accelerate the innovation diffusion. However, such CLT supply collaborative network structure is more vulnerable to disruptions due to its dependence on these few prominent hubs. Also, the industry collaborative network’s decreased modularity confirms the maturity of the CLT technology and the formation of cohesive clusters of innovation partners. The macro analysis approach of the study highlighted the critical role of supply chain upstream stakeholders due to their higher centralities in the collaborative network. Stronger collaborations were found between the supply chain upstream stakeholders (timber manufacturers) and downstream stakeholders (architects and main contractors).

The study contributes to the field of industrialized and CLT construction by characterizing the collaborative networks between CLT supply chain stakeholders that are critical to propose governmental policies and industry initiatives to advance this sustainable construction material.

The authors construct an intertemporal model of rent-maximizing behavior on the part of a timber harvester under potentially multidimensional risk as well as geographical heterogeneity. Subsequently, the authors use recursive methods (specifically, the method of stochastic dynamic programing) to characterize the optimal policy function – the rent-maximizing timber-harvesting profile. One noteworthy feature of their application to forestry in the province of British Columbia, Canada is the unique and detailed information the authors have organized in the form of a dynamic geographic information system to account for site-specific cost heterogeneity in harvesting and transportation, as well as uneven-aged stand dynamics in timber growth and yield across space and time in the presence of stochastic lumber prices. Their framework is a powerful tool with which to conduct policy analysis at scale.

Timber export is an important economic development pillar in Ghana, which has a direct effect on Ghana’s domestic forestry industry development, local communities’ income and sustainable forest management and deforestation. China, as the Ghana’s largest timber export destination, brought significant impacts on Ghana’s timber export. However, there is a lack of quantitative analyses on impact factors of timber trade between the two countries in the past, which this paper sought to do.

The authors first collected Ghana’s timber exports to China from 1997 to 2017, and then based on the literature review and trade theories, the authors set up a least squares estimate (LSE)-based multiple linear regression (MLR) model to analyse the specific impact factors. In addition, multi-collinearity, autocorrelation and heteroscedasticity issues of the impact factors were checked to guarantee the accuracy of the results.

The results showed China timber import volume, Ghana cedi (GHC)/US$ exchange rate, Ghana’s gross domestic product (GDP) and China timber consumption volume in construction sector had positive impacts; Ghana timber production volume and Ghana average timber export price had negative impacts. The results confirmed that China’s timber consumption had a positive linkage with Ghana’s timber export. The article also reviewed possible impacts caused by change in timber trade policies, which proved important but was hardly directly quantified. The authors pointed out the importance of optimizing these impact factors to make sure Ghana’s timber export to China went on the sustainable track.

There is no literature about timber trade and its impact factors between Ghana and China, which used econometric models. This paper provided new perspectives on the impact factors in timber trade between the two countries.

Timber waste from construction is downcycled into non-structural products, incinerated for energy generation or disposed of in landfills. Existing literature highlights that the use of reprocessed timber for structural purposes is limited. Therefore, this study aims to focus on identifying factors limiting reprocessed structural timber (RST) uptake amongst construction professionals in Australia.

Current literature shows that the use of reprocessed materials (RMs) depends on user-specific personal factors and broader contextual factors. Therefore, data collection and analysis were based on the attitude-behaviour-context (ABC) theory, which affirms this relationship between personal and contextual factors in determining pro-environmental behaviours (PEBs). A qualitative research approach was adopted, considering limitations with industry expertise and the need for developing an in-depth understanding of limiting factors. Twenty semi-structured interviews were conducted amongst construction professionals experienced in using reprocessed materials, while the thematic analysis technique was used to analyse interview findings.

Personal factors that limit the uptake of RST include negative cost and quality perceptions, risk appetite, the tendency to maintain the status-quo, limited decision-making capability and lack of skills and expertise, while contextual factors include higher prices, poor and uncertain quality, limitations with information availability, under-developed supply and drawbacks in the regulatory environment.

The current study is amongst the first to explore the uptake of reprocessed timber for structural uses in Australia. The findings can be utilised to create a stronger demand for RST by directly addressing personal and contextual factors that constrain construction professionals from using RST.

The purpose of this paper is to study the possibility of promoting certified timber coming from sustainable managed forests, in order to support Greek enterprises and the institutions of the Greek timber sector involved to apply effective green marketing methods and policies.

Based on a prototype questionnaire, specifically structured for the aim of the research, 55 responses were collected from Greek timber enterprises in April 2009. The questionnaires were processed and analyzed with the statistical program SPSS of ver17.0, using descriptive statistics and correlation analysis. The main purpose was the investigation of knowledge, use and promotion of certified timber that emanates from forests under sustainable management, thus planning the green marketing.

The Greek enterprises of the timber sector expressed a great interest in the protection of forests all over the world, ranging from illegal loggings to their rational management. At the same time, in their overwhelming majority, they strongly support the certification of the sustainable management of Greek forests. These enterprises believe that the movement of green buildings has also reached Greece, albeit at a slow pace, and forecast that green consumers are prone to offer an additional percentage of about 6 per cent on price, in order to buy certified timber products. Companies trust to a high degree most institutions of higher education (universities and technological institutions) for the promotion of certified timber products and propose their publicity through newspapers and magazines, as well as through internet portals of close contact. Finally, the paper discusses reflections and forecasts on the growth of this new market of timber.

The results offer precious knowledge on the market of certified timber and its future developments in the following five years, which can assist both enterprises and the institutions involved in strategy forming and decision making, in order to gain an important share of the market of green consumers. The paper also proposes effective green marketing applications.

This is the first research on green marketing and the promotion of certified products of timber in the Greek market, while similar work is very limited even at an international level.

The purpose of this paper is to explore the alternative procurement procedures that will address the complexity of issues surrounding timber procurement for housing reconstruction after the Tsunami in Banda Aceh. It reviews construction supply chain management (SCM) and procurement philosophies with a project management (PM) perspective to facilitate the logistics of post‐disaster reconstruction.

Based on two fieldtrip experiences in Banda Aceh in 2006 (one month) and 2008 (two months) with the housing reconstruction program of an international non‐governmental organisation, this paper examines the modern literature on SCM and analyses this process associated with construction material procurement in practice, reviews the problems inherited in the Indonesian context and analyses the proposed procedures of local and international procurement of timber to streamline the supply for reconstruction in Banda Aceh, Indonesia.

The incorporation of sustainable considerations into the design of procurement routes in the overall PM process for post‐disaster construction should be well recognized. The paper shows that basic SCM philosophies of ensuring stakeholder integration and collaboration could reduce the problems in timber procurement in Banda Aceh. Sustainable construction and triple bottom lines criteria are proposed to ensure a value creation process for a wider stakeholder engagement and overall reconstruction project delivery.

The paper provides useful PM insights into SCM and sustainable construction literature. The case study reviews the timber procurement problems and goes further to present two alternative procurement models that could be implemented as more sustainable responses to post‐disaster reconstruction in Banda Aceh.

The purpose of this paper is to improve the understanding of the impact of mass timber construction methods on construction performance through the successful delivery of the first-of-a-kind tall wood building, Brock Commons Tallwood House (Tallwood House). This paper is one of a set of papers examining the project; companion papers describe innovations used during the mass timber design and construction processes.

A mixed-method, longitudinal case study approach was used in this research project to investigate and document the Tallwood House project. Quantitative data were collected to perform the following analysis: hook time, the variability of productivity and schedule reliability. Members of the research team observed construction progress, meetings and decision-making, conducted periodic interviews and reviewed project artifacts.

The research presented in this paper is the culmination of a longitudinal study aimed at studying the innovation process on a project where radical innovations of structural systems were developed. Prefabrication, combined with the use of a virtual design and construction (VDC) model for planning and fabrication and early collaboration with trades, construction managers and consultants, increased the labor productivity of the on-site erection of the mass timber structural components and envelope panels and expedited the construction schedule.

This paper details an in-depth investigation into the construction productivity for a unique building project and lessons learned. The case study chosen is the construction of Tallwood House at the University of British Columbia. Tallwood House was the tallest mass-timber hybrid building in the world at the time of its construction.