Life Cycle Assessment of Flat Roof Technologies for Office Buildings in Israel

Pushkar, Svetlana

doi:10.3390/su8010054

Cited by 18 publications

(8 citation statements)

References 13 publications

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“…It is important to generate tools to facilitate selecting between construction alternatives and choosing different possible solutions based on their environmental impact, as a way to contributing to raising consciousness in the real estate sector and confer upon it an added value. Using the methodology based on the LCA in an early stage of the design, a building's impact throughout its service life will be positively influenced (Pushkar, 2016). This fact will create new opportunities for improvement in the residential sector and, by extension, to society as a whole.…”

Section: Discussionmentioning

confidence: 99%

Comparison between building roof construction systems based on the LCA

Ayuso¹,

García-Sanz-Calcedo²

2018

rdlc

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Based on Life Cycle Assessment techniques, this research compares the environmental impact of 11 variants for the construction of roofs in residential buildings. Among others, the energy used, the carbon footprint and the waste associated to placement and packaging are found, leading to 9 sustainability indicators, which include socio-economic aspects such as the decennial maintenance cost, the maintainability ratio or the quantity of labour necessary. Each of the roofs was characterised based on 20 typologies of constituent layers, categorised under 6 construction functional groups, according to the function held in the roofs. Based on this study, it is demonstrated that the most sustainable roofs are non-trafficable flat roof with gravel finishing (with either a PVC or bituminous layer), followed by pitched roofs (with ceramic and cement mortar tiles) and green roofs with PVC layer. It was noted that trafficable flat roofs generate greater emissions of carbon dioxide and use more energy in their construction, and that flat roofs with gravel finishing require a lower cost of decennial maintenance. Furthermore, pitched roofs generate a higher amount of construction and packaging waste than flat roofs and require more labour, especially in the case of pitched roofs with tiles.

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Section: Discussionmentioning

confidence: 99%

Comparison between building roof construction systems based on the LCA

Ayuso¹,

García-Sanz-Calcedo²

2018

rdlc

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“…In that respect, the benefit of the green roof was evaluated [19]. Also, the LCA has been used to evaluate the environmental damage from three concrete flat roof technologies in Israel [18].…”

Section: Literature Reviewmentioning

confidence: 99%

Evaluation of Environment Sustainability of Clay Roof Tiles Manufacturing Practices in Sri Lanka using LCA Technique

Kulatunga¹,

Peiris²,

Kamalakkannan³

2020

Engineer

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Clay roof tiles have been one of the most utilised roofing materials in the past. With the introduction of new roofing materials, the popularity of clay roof tiles reduced over the years. However, with the modern trend towards sustainable built environment and policy decisions to ban asbestos fibre-based cement roofing tiles in Sri Lanka, demand for clay roofing tiles is positively affected. Furthermore, due to its environmentally benign performance, some of locally manufactured clay roofing tiles have gained foreign markets. However, it is rare to find any detailed study on the overall sustainability of clay roof tiles. In order to assess the environmental sustainability of the clay roofing tiles, comprehensive Life Cycle Assessment (LCA) was done from cradle to gate. Two clay roof manufacturing processes: semi-conventional and modern were considered for the evaluation. The environmental hotspots were identified through the IPCC GWP and ReCiPe analysis method using the SimaPro LCA software. Results revealed that conventional manufacturing practice is more environmentally sustainable than modern practice because modern practice causes significant influence on both impact assessment methods.

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“…The LCA of the end-of-life stage is highly uncertain and influenced by the applied demolition and disposal practices [20]. Moreover, the environmental damage estimated from this stage was smaller than that of the production/execution stage [21]. Therefore, this study only conducted a "cradle-to-gate" LCA that evaluated the production of the concrete mixtures.…”

Section: Life-cycle Assessmentmentioning

confidence: 99%

Life-Cycle Assessment of the Substitution of Sand with Coal Bottom Ash in Concrete: Two Concrete Design Methods

Pushkar

2019

Applied Sciences

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Life-cycle assessments (LCAs) were conducted to evaluate the replacement of sand with coal bottom ash (CBA) in concrete. CBA is a byproduct of coal-fueled electricity production. Sand was replaced with CBA at proportions of 0, 25, 50, 75, and 100 wt.%, and the resultant concretes were denoted as CBA0, CBA25, CBA50, CBA75, and CBA100, respectively. Two concrete mixture design methods (that resulted in different component qualities of concrete mixtures) were used: (i) Mixture with a fixed slump (MIX-fixed-SLUMP) and (ii) mixture with a fixed water/cement ratio (MIX-fixed-W/C). The ReCiPe2016 midpoint and single score (six methodological options) methods were followed to compare the environmental damage caused by the CBA-based concretes. The ReCiPe2016 results showed that replacing sand with CBA was environmentally (i) beneficial with the MIX-fixed-SLUMP design and (ii) harmful with the MIX-fixed-W/C design. Therefore, using CBA as a partial sand replacement in concrete production is a controversial issue as it highly depends on the concrete mixture design method.

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Life Cycle Assessment of Flat Roof Technologies for Office Buildings in Israel

Cited by 18 publications

References 13 publications

Comparison between building roof construction systems based on the LCA

Comparison between building roof construction systems based on the LCA

Evaluation of Environment Sustainability of Clay Roof Tiles Manufacturing Practices in Sri Lanka using LCA Technique

Life-Cycle Assessment of the Substitution of Sand with Coal Bottom Ash in Concrete: Two Concrete Design Methods

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