Comparative analysis of flat roof systems using life cycle assessment methodology: Application to healthcare buildings

Botejara-Antúnez, Manuel; Domínguez, Jaíme Gónzalez; García-Sanz-Calcedo, Justo

doi:10.1016/j.cscm.2022.e01212

Cited by 9 publications

(6 citation statements)

References 64 publications

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“…According to one study [18], low-density and high-density PE waterproofing membrane and the root barrier count for GWP 9.5%. Study [19] points out that the high thickness of the substrate (400 mm) required for adequate insulation increases the environmental impact of the systems, with values between 13.5% and 52.4% higher than the average roof systems. As a result of the change in the end-of-life scenario, the share of life-cycle phases per GWP-fossil has changed for scenarios 2 and 3.…”

Section: Resultsmentioning

confidence: 99%

End-of-Life Stage Analysis of Building Materials in Relation to Circular Construction

Vilčeková,

Mésároš,

Burdová

et al. 2023

The 4th International Conference on Advances in Environmental Engineering

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Section: Resultsmentioning

confidence: 99%

End-of-Life Stage Analysis of Building Materials in Relation to Circular Construction

Vilčeková,

Mésároš,

Burdová

et al. 2023

The 4th International Conference on Advances in Environmental Engineering

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“…Other authors explored the environmental impact derived from different elements of the healthcare infrastructure. For example, Botejara et al 44 evaluated the environmental impact of multiple flat roofs in healthcare buildings. In this study, the importance of including the environmental dimension in the decision-making process when selecting the flat roof was demonstrated.…”

Section: Introductionmentioning

confidence: 99%

Life cycle analysis methodology for heating, ventilation and air conditioning ductwork in healthcare buildings

Botejara-Antúnez

Domínguez

García-Sanz-Calcedo

2023

Indoor and Built Environment

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The design, modelling and construction of heating, ventilation and air conditioning (HVAC) facilities in healthcare buildings must aim for the users’ maximum comfort and meet sanitary criteria for indoor air quality. The environmental impact of 12 HVAC duct types was subjected to life cycle assessment, with a single-score damage category analysis carried out for the midpoint and endpoint levels. The two most favourable duct types for the different impact categories were aluminium with helical steel wire reinforcement and fibreglass insulation, and also copper sheeting with rock wool and polyurethane insulation. However, although the former presented the best environmental impact values, this type is inadvisable for healthcare buildings. This is due to its nature and the subsequent tendency of the system to lose pressure and efficiency, as well as the difficulty of cleaning this type of ductwork and its predisposition to bacterial proliferation. Thus, the copper duct type with rock wool insulation is the most suitable type for healthcare buildings. This came second overall environmentally (1.06 pt/m2), with values 2.83 times more favourable than the polyisocyanurate solution. Finally, the application of the life cycle assessment (LCA) methodology to HVAC ductwork was demonstrated to reduce the impact by up to 39.88%.

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“…Essentially, there are two types of roofs: pitched and flat, where the main differentiation occurs in terms of the slope, materials, and layers-thermal insulation, waterproofing, and protection/cladding. Therefore, flat roofs have been increasingly used in buildings, to the detriment of traditional pitched roofs [14,15].…”

Section: Introductionmentioning

confidence: 99%

“…Recent literature shows several studies designed to establish a parallel between pitched and flat roofs, as well as comparative studies on these two systems and their applications, as is also the most recent case, of green roofs [4,8,[15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Modular and Prefabricated System for Waterproofing and Insulation of Flat Roofs

Rocha¹,

Ferreira²,

Queiroz

et al. 2023

Buildings

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Recently, there has been an attempt to implement increasingly significant prefabrication in building construction, since this method is considered to represent an opportunity to reduce impacts in the construction sector. For pitched roofs, there have been relevant developments, such as sandwich panels, asphalt shingles, lightweight roof panels, among others. However, in relation to flat roofs, the advances have been of little relevance and are mainly limited to the improvement of technical characteristics and prefabrication of the construction materials used. The main goal of this article is to demonstrate the possibility of developing new solutions for more sustainable flat roofs in the carbon footprint, and for this purpose a system was developed called ADAPTIVE—Advanced Production System for Sustainable and Productive Roofing Retrofit, which consists of developing a composite solution for the rehabilitation of flat roofs, completely prefabricated and with zero waste, with the aim of increasing energy behaviour, collecting and storing rainwater, and using the roof as a garden leisure space. To obtain the validation results, computerised theoretical modelling was conducted with theoretical assessment of the components and the set of components developed, which allowed us to conclude that the system meets the high hygrothermal, acoustic, and structural requirements.

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Comparative analysis of flat roof systems using life cycle assessment methodology: Application to healthcare buildings

Cited by 9 publications

References 64 publications

End-of-Life Stage Analysis of Building Materials in Relation to Circular Construction

End-of-Life Stage Analysis of Building Materials in Relation to Circular Construction

Life cycle analysis methodology for heating, ventilation and air conditioning ductwork in healthcare buildings

Modular and Prefabricated System for Waterproofing and Insulation of Flat Roofs

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