Assessing passive refurbishment measures : energy efficiency, economic impact, and embodied energy in typology D-9, La Pau, Barcelona
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hdl:2117/394983
Author's e-mailnicole.balansagmail.com
Document typeMaster thesis
Date2023-09-15
Rights accessOpen Access
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Attribution-NonCommercial-NoDerivs 4.0 International
Abstract
Sustainable construction and energy efficiency in buildings are of paramount importance in today's global context. The construction sector stands as one of the largest consumers of natural resources and energy while significantly contributing to carbon emissions. In this context, the refurbishment of existing buildings is crucial for reducing the sector's environmental impact and advancing towards greater sustainability.
This research aims to conduct an analysis of the economic impact, energy efficiency, and embodied energy implications of applying passive rehabilitation measures in different dwellings of Typology D-9 in the La Pau neighborhood. The specific objectives were achieved by affirming that among the simple refurbishment measures, exterior facade insulation stands out as the measure delivering the highest energy savings and a payback period of less than 6 years for all case studies. However, it involves a greater upfront investment. The renovation measure with the lowest percentage of energy savings, as well as the lowest investment volume and the most economically viable payback period is the replacement of single-pane glass with low emissivity double-glazed 4/16/4 glass, offering an average energy savings of 5%. Regarding combined measures, package 6 (a combination of exterior facade insulation with window replacements) stands out as the one providing the highest energy savings (averaging between 38.13% and 38.51%, depending on the material used) and an economic payback period of less than 10 years. However, it requires the highest upfront investment. Package 3, which combines air cavity insulation with the replacement of single-pane glass with low emissivity double-glazing, yields lower energy savings but at the same time requires a lower investment.
As for embodied energy, PVC-framed windows and XPS as the exterior insulation material exhibit the highest consumption of primary energy.
SubjectsArchitecture and energy conservation, Housing rehabilitation, Arquitectura i estalvi d'energia, Rehabilitació de l'habitatge
DegreeMÀSTER UNIVERSITARI EN INTERVENCIÓ SOSTENIBLE EN EL MEDI CONSTRUÏT (Pla 2014)
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