17 documents found, page 1 of 2
Long-term performance of thermal insulating composite systems based on water re...
Borsoi, Giovanni; Parracha, João L.; Bersch, Jéssica D.; Garcia, Ana; Dionísio, Amélia; Faria, Paulina; Veiga, Rosário; Flores-Colen, InêsExternal Thermal Insulation Composite Systems (ETICSs) are increasingly applied in both new construction and energy retrofitting, where long-term durability under environmental exposure is critical to preserving thermal efficiency. Moisture ingress represents a key degradation factor, reducing insulation performance and undermining energy savings promoted by the ETICS. The effectiveness of these systems is stro...
Effects of hygrothermal and natural aging on the durability of multilayer insul...
Parracha, João Luís; Veiga, Rosário; Nunes, Lina; Flores-Colen, InêsThis study evaluated the durability of three innovative multilayer insulation systems incorporating thermal mortars with EPS aggregates and silica aerogel granules after hygrothermal accelerated aging and one year of natural aging at an urban site in Portugal. The loss of performance was assessed after the accelerated aging and every three months of natural aging using non-destructive testing. Chemical-morpholo...
Hygrothermal behaviour of external thermal insulation composite systems (ETICS)...
Parracha, João L.; Veiga, Rosário; Gomes, M. Glória; Flores-Colen, Inês; Nunes, LinaETICS are multilayer building solutions applied to the building external walls to provide an improved thermal performance to the building envelope. However, several questions have been raised concerning the durability of ETICS, namely related to biological colonisation phenomena. Considering the high susceptibility of ETICS to bio-colonisation, the following research questions arise: (i) what is the impact of s...
Oyster shells’ incorporation into mortar to achieve blue circular economy: LCA ...
Bellei, Poliana; Schäfer, Giovanna; Magalhães, Fernanda; Torres, Isabel; Marques da Costa, Eduarda; Solstad, Runar; Flores-Colen, InêsCurrently, society's great challenge is to face climate change and mitigate environmental impacts. This study aims to identify the environmental impacts of recovering traditional construction techniques in coastal regions by incorporating oyster shells into mortar to achieve the objectives of the blue circular economy. The possible environmental impacts are measured using Life Cycle Assessment. Oyster shell is ...
Blue Circular Economy—Reuse and Valorization of Bivalve Shells: The Case of Alg...
Magalhães, Fernanda Caroline; Bellei, Poliana; Flores-Colen, Inês; Marques Da Costa, EduardaThe Circular Economy emerges as an alternative to reinvent the linear production model (take–make–waste), focusing on reintegrating waste into the production cycle, and aiming to minimize both environmental disposal and the unrestrained extraction of raw materials. In this context, the concept of Blue Economy arises, an approach centered on preserving and valorizing marine and coastal resources. This article ai...
Potential Use of Oyster Shell Waste in the Composition of Construction Composit...
Bellei, Poliana; Torres, Isabel; Solstad, Runar; Flores-Colen, InêsThe oyster shell is a residue rich in calcium carbonate, which can be reused as a raw material for creating building materials. For this reason, many researchers focused on the incorporation of oyster shell in the composition of composites, as it is a means of contributing to the economic sustainability by reducing the presence of pollution caused by aquaculture waste in the environment, thus increasing the val...
Toward the Sustainable and Efficient Use of External Thermal Insulation Composi...
Parracha, João L.; Veiga, Rosário; Flores-Colen, Inês; Nunes, LinaThe identification of the main degradation agents and knowledge of the degradation mechanisms and long-term performance of ETICSs are of fundamental importance for the sustainable and efficient use of these systems. This review article presents the state of the art related to the durability of ETICSs, defining the required bases for their sustainable and efficient use. The aim is to identify the most common ano...
Diversity and distribution of microbial communities on the surface of External ...
Viegas, Cristina A.; Borsoi, Giovanni; Moreira, Leonilde M.; Parracha, João L.; Nunes, Lina; Malanho, Sofia; Veiga, Rosário; Flores-Colen, InêsExternal Thermal Insulation Composite Systems (ETICS) are frequently used to enhance the energy efficiency of the built environment. However, stains of presumable biological nature are often detected shortly after application, causing cladding defacement and altering the building aesthetics. To address which microbiota could contribute to these biodeterioration related color/aesthetic anomalies, samples collect...
Impact of Water-Repellent Products on the Moisture Transport Properties and Mou...
Roncon, Renata; Borsoi, Giovanni; Parracha, João Luís; Flores-Colen, Inês; Veiga, Rosário; Nunes, LinaExternal Thermal Insulation Composite Systems (ETICS) are constructive solutions widely used to increase the thermal insulation in new and retrofitted buildings. However, these systems can present several anomalies due to their constant exposure to weathering agents and anthropic factors. Water is generally the major cause of degradation. Thus, the application of water-repellent products can minimize the appear...
Impact of Environmental Exposure on the Service Life of Façade Claddings—A Stat...
Barrelas, Joana; Dias, Ilídio S.; Silva, Ana; Brito, Jorge de; Flores-Colen, Inês; Tadeu, AntónioFaçade claddings, as the outer protection layer of the building’s envelope, are directly exposed to environmental degradation agents. The façades’ orientation and their distance from the sea, among other location and protection-related factors, influence their vulnerability to climate loads, in particular wind and air humidity. These loads, as well as exposure to air pollution, affect the degradation process of...