scholarly journals Public versus private incentives to invest in green roofs: A cost benefit analysis for Flanders

2012 ◽  
Vol 11 (4) ◽  
pp. 417-425 ◽  
Author(s):  
Karla Claus ◽  
Sandra Rousseau
Keyword(s):  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Green Roofs ◽  
Benefit Analysis ◽  
Private Incentives ◽  
Public Versus Private

scholarly journals ECONOMIC STUDY OF GREEN ROOFS AS A SUSTAINABLE CONSTRUCTION SYSTEM

2021 ◽  
Author(s):  
Júlia G. Borràs ◽  
◽  
Carlos Lerma ◽  
Ángeles Mas ◽  
Jose Vercher ◽  
...  
Keyword(s):  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Green Roofs ◽  
Global Dimension ◽  
Point Of View ◽  
Sustainable Construction ◽  
Benefit Analysis ◽  
Economic Point ◽  
Useful Life ◽  
Social Environmental

Green roofs respond to a need of today’s society to orient its development towards sustainability. Architecture and urban planning, as builders of the modern city, play a crucial role in the search for a balance between social, environmental and economic growth. Green roofs imply recognized benefits in all three fields, but a study of the economic viability of these solutions is necessary, especially in the field of rehabilitation with tighter budgets. Through a cost-benefit analysis throughout its useful life, it is intended to avoid that the initial construction cost of a green roof, or any sustainable construction, could discourage users, helping them to understand its global dimension from an economic point of view.

Green Roof Cost-Benefit Analysis: Special Emphasis on Scenic Benefits

2016 ◽  
Vol 7 (3) ◽  
pp. 488-522 ◽  
Author(s):  
Väinö Nurmi ◽  
Athanasios Votsis ◽  
Adriaan Perrels ◽  
Susanna Lehvävirta
Keyword(s):  
Cost Benefit Analysis ◽  
Spatial Regression ◽  
Green Roof ◽  
Cost Benefit ◽  
Green Roofs ◽  
Past Research ◽  
Hedonic Pricing ◽  
Benefit Analysis ◽  
Private Benefits ◽  
Public Benefits

This article presents a green roof cost-benefit analysis (CBA). Green roofs are roofs which are partially or completely covered by vegetation. We discuss the benefits and costs of light self-sustaining vegetated roofs. The benefits of the ecosystem services (ES) provided by green roofs can be classified into private and public benefits. We apply the selected valuation methods first in Helsinki, Finland and subsequently explain how results can be transferred to other urban locations. Past research and this study show that private benefits are usually not high enough to justify the expensive investment for a private decision maker. However, when the public benefits are added to the private benefits, social benefits are higher than the costs of green roofs in most cases.Past research quantified most types of the benefits, excluding scenic and biodiversity benefits. Scenic benefits denote the intangible benefits that people derive from the presence of green space, including at least aesthetic and psychological ones. In this article, special emphasis is placed on the valuation of the scenic benefits; these are among the most challenging benefits to valuate in monetary terms. We employ hedonic pricing theory, implemented via spatial regression models, and green roof implementation scenarios in order to estimate the aggregate willingness to pay for a “unit” of green roof. The results show that the scenic benefits can be a significant attribute in cost-benefit calculations. Yet, the amount of benefits strongly depends on the green roof design.

scholarly journals Project GENESIS: An All-inclusive Model to Perform Cost-Benefit Analysis of Green Roofs and Walls

2019 ◽  
Vol 8 (3) ◽  
pp. 85
Author(s):  
Cristina Matos Silva ◽  
Carlos Oliveira Cruz ◽  
Inês Teotónio
Keyword(s):  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Green Roofs ◽  
Decision Makers ◽  
Environmental Benefits ◽  
Sustainable Urban Development ◽  
Benefit Analysis ◽  
Uncertainty Model ◽  
Life Cycle Perspective ◽  
Alternative Solutions

Green roofs and walls are one of the most promising alternatives for retrofitting existing built environments and tackle urban challenges in a multifunctional way. Yet, these solutions are being confined to specific countries or cities, as their economic contribution has not been fully examined nor accepted. GENESIS is a trans-disciplinary project funded by FCT - Fundação para a Ciência e a Tecnologia that will develop a systematic and comprehensive model to support potential investors or decision-makers, balancing the costs with the benefits of green roofs and walls in a life cycle perspective. The main objective of the project is to enhance existing cost-benefit analysis of green roofs and walls through a multidisciplinary approach that will allow the replication in different regions and type of infrastructures. This will be achieved by: i) monetizing and including all economic, social and environmental benefits in the analysis in order to weight different types of benefits (even those that are typically difficult to estimate because they have no market value) and establish a comparative basis of alternative solutions and potential scenarios; ii) comprising an uncertainty model to cope with climate change and inaccurate forecasting of benefits/costs modelling and; iii) including multi-criteria mode in order to incorporate users and investors preferences. This all-inclusive model crucial for a wide spreading in is green roofs and walls and a more sustainable development in cities. Keywords: green roofs/walls; cost-benefit analysis; investors/users preferences; sustainable urban development; uncertainty

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