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Senior lecturer of Indoor Construction Technologies, Architectural Acoustics and Non destructive Testing at the Architectural Technology Department I, at the Polytechnic University of Catalonia (UPC). Senior Researcher at the Institute of Building Technology of Catalonia (ITEC) from it was funded (1981). He has been member of the faculty board of High Technical School of Architecture El Vallés (Polytechnic University of Catalonia) as Academic Subdirector and Secretary, and also Dean of the Architectural Technology Department I. He has published many articles (32) at reviews as "CSTB magazine" , "CAU", "Quaderns d'Arquitectura i Urbanisme", "Tectónica", "AB", "Projeckt Revue", “INDE”, “AFL”, etc. He has published many books (18) and chapters of books (8) for ITEC, Catalonia Architects Association (COAC) and Regional Government of Catalonia. He works assessing private enterprises and local public administrations on topics about urban planning and technological innovation. He is a member of the Plataforma Tecnológica Española de la Construcción, coordinator of the Doctorate Program 'Technology in Architecture, Building and Urbanism" and Coordinator of the LiTA (Laboratory on Innovation and Technology for Architecture) research group of the UPC. It has been member of the Board of the UPC, the Governing Council of the UPC, board of Edicions UPC S.L. and Vice-Chair of the Departments Council of the UPC. He has developed many industrial patents (5).
Old dwellings usually have shortfalls in insulation, acoustic and thermal, and in security of electrical services in the interior partition walls. A common building solution is to add a wall lining with a laminate base gypsum board that improves both acoustic and thermal insulation and facilitates a new invisible cable layout without demolition. Conventional solutions have had limited success because of time consumption, environmental impact and cost. This research aimed to create an integrated building system to carry out these interior building refurbishment works quickly, cleanly and with low inconvenience and environmental impact. The research specifically focused on incorporating new molded materials that have a low environmental impact and improving the handling and future modification of the wall lining system. In response to the above goals, the product development methodology was applied to the design of an internal panel to be inserted between the existing partition wall and the closure wallboard, which is usually laminated base gypsum board (LGB). The proposed internalpanel is molded with recycled cellulose pulp (Biprocel) and has adequate relief designed to improve cable layout tasks and better join the laminate base gypsum board to the existing wall face. The development resulted from collaboration between the public administration, university researchers and undergraduate students in the co-design process. This research contributes to improving the applications of recycled cellulose fibers in molded panels for the building industry, particularly in refurbishment activities.
Raül Serra-Fabregà; Joan-Lluís Zamora-Mestre. Preliminary Proposal for an Alternative Wall Lining Panel Based on Molded Recycled Cellulose and Designed for Home Wiring Refurbishment of Building Interior Partitions. Sustainability 2021, 13, 4643 .
AMA StyleRaül Serra-Fabregà, Joan-Lluís Zamora-Mestre. Preliminary Proposal for an Alternative Wall Lining Panel Based on Molded Recycled Cellulose and Designed for Home Wiring Refurbishment of Building Interior Partitions. Sustainability. 2021; 13 (9):4643.
Chicago/Turabian StyleRaül Serra-Fabregà; Joan-Lluís Zamora-Mestre. 2021. "Preliminary Proposal for an Alternative Wall Lining Panel Based on Molded Recycled Cellulose and Designed for Home Wiring Refurbishment of Building Interior Partitions." Sustainability 13, no. 9: 4643.
This work deals with daylighting for quality indoor atmospheres, considering building skins. In recent years, almost all retrofit facades of restaurants are highly glazed façades, boosting glare, sun ray absorption and overheating inside. Most of the time, they are not integrated with daylight control; therefore, lighting and out view requirements are not so balanced. Taking into account this daylighting complexity, an alternative façade system is proposed to simulate by Radiance. Previously, perception simulations are compared with measured data, in order to discretize the simulations. In addition, for one point three different view are assessed as: work plane, relation plane and the out plane. Subsequently, two virtual façade models, windows combined by complex fenestration system (CFS) as prismatic film (PF) and highly glazed façade, are tested according to daylighting. For that, three indexes have been used: daylight glare probability (DGP), daylight glare index (DGI) and daylight autonomy (DA). The results show that the proposed complex façade has a good light contribution with less absorption, while maintaining the outside view. In addition, the DGI is needed to test the out plane, because DGP is more suitable for lower luminance; therefore, each visual plane should be assessed regarding different visual comfort conditions, or parameters and methods. Accordingly, the mean DGI result of window combined by CFS is approximately lower in 5% than highly glazed façade. However, the DA of highly glazed is higher in 5%, but the DA of window combined by CFS is enough, above 80%. Definitely, the complex scene at restaurant with the proposed integrated façade system improves light performance and indoor atmosphere.
Urtza Uriarte; Jose Rico-Martinez; Joan Zamora; Rufino Hernández. Transition Planes for Visual Comfort: Out View with Complex Fenestration System Design at Restaurants in Spain. Energies 2021, 14, 1906 .
AMA StyleUrtza Uriarte, Jose Rico-Martinez, Joan Zamora, Rufino Hernández. Transition Planes for Visual Comfort: Out View with Complex Fenestration System Design at Restaurants in Spain. Energies. 2021; 14 (7):1906.
Chicago/Turabian StyleUrtza Uriarte; Jose Rico-Martinez; Joan Zamora; Rufino Hernández. 2021. "Transition Planes for Visual Comfort: Out View with Complex Fenestration System Design at Restaurants in Spain." Energies 14, no. 7: 1906.
The use of double-sheet enclosures with an intermediate non-ventilated air cavity guarantees a higher airborne sound insulation. The insulation advantages depend on air tightness and the placement of sound absorbing material in the air cavity. The lightweight ventilated façade is a system constructed by the addition of an external light cladding on a heavy single wall to establish an intermediate air cavity. This air cavity can be ventilated under controlled cooling effects, because of Sun’s radiation, and to reduce the risk of dampness caused by rainwater. Owing to this ventilation, acoustic insulation of the lightweight ventilated façade could be less effective. However, some authors indicate that air cavity moderate ventilation does not necessarily lead to a significant reduction in the airborne sound insulation. The authors previously verified this situation in a real building where the existing façade of masonry walls was transformed into a lightweight ventilated façade. The preliminary results indicate the acoustic benefits can be compatible with the hygrothermal benefits derived from controlled ventilation. This article presents the next step, the evaluation of the lightweight ventilated façade acoustic performance under laboratory conditions to revalidate the previous results and refining aspects as the air cavity thickness or the state of openings ventilation. The main results obtained indicate that the airborne sound insulation in laboratory is aligned with the previous results in a real building. Air cavity thickness from 110 to 175 mm and ventilation openings from 0% to 3.84% of the façade area does not lead to a significant reduction in the airborne sound insulation.
Joan Lluis Zamora Mestre; Andrea Niampira. Lightweight ventilated façade: Acoustic performance in laboratory conditions, analysing the impact of controlled ventilation variations on airborne sound insulation. Building Acoustics 2020, 27, 367 -379.
AMA StyleJoan Lluis Zamora Mestre, Andrea Niampira. Lightweight ventilated façade: Acoustic performance in laboratory conditions, analysing the impact of controlled ventilation variations on airborne sound insulation. Building Acoustics. 2020; 27 (4):367-379.
Chicago/Turabian StyleJoan Lluis Zamora Mestre; Andrea Niampira. 2020. "Lightweight ventilated façade: Acoustic performance in laboratory conditions, analysing the impact of controlled ventilation variations on airborne sound insulation." Building Acoustics 27, no. 4: 367-379.
DOI: 10.7764/RDLC.18.2.247The use of double-sheet enclosures with an intermediate air chamber in façades guarantees a higher quality of acoustic insulation against external airborne noise. The effective advantages of the intermediate air chamber depend mainly on its airtightness and the absorbent material contained inside. A ventilated façade with lightweight cladding (LVF) is a specific construction system for double-sheet envelope façades, characterised by an intermediate air chamber that enables a certain amount of internal air circulation, with resulting cooling effects to alleviate excess solar radiation whilst reducing the risk of dampness caused by rainwater. However, owing to this ventilation of the intermediate air chamber, the acoustic insulation of the entire façade could prove less effective than cases in which the intermediate air chamber is completely sealed. Through various methods of measurement and analysis, several authors consider that the opening of the intermediate air chamber for hygrothermal control purposes does not necessarily represent a significant reduction in the level of sound insulation in general. What does appear to have a significant influence on the acoustic behaviour is the surface and location of the intermediate air chamber openings to enable ventilation. The results of this research are presented as further evidence that the positive contribution of LVF should be acknowledged at a regulatory level regarding sound insulating, double-sheet envelope architectural façades.
Andrea Niampira Daza; Universidad Piloto De Colombia; Joan Lluís Zamora; Universitat Politècnica De Catalunya. Acoustic performance in a lightweight ventilated façade for building refurbishment: analysing the impact of variations in airborne sound insulation according to the ventilation characteristics. Revista de la construcción 2019, 18, 247 -257.
AMA StyleAndrea Niampira Daza, Universidad Piloto De Colombia, Joan Lluís Zamora, Universitat Politècnica De Catalunya. Acoustic performance in a lightweight ventilated façade for building refurbishment: analysing the impact of variations in airborne sound insulation according to the ventilation characteristics. Revista de la construcción. 2019; 18 (2):247-257.
Chicago/Turabian StyleAndrea Niampira Daza; Universidad Piloto De Colombia; Joan Lluís Zamora; Universitat Politècnica De Catalunya. 2019. "Acoustic performance in a lightweight ventilated façade for building refurbishment: analysing the impact of variations in airborne sound insulation according to the ventilation characteristics." Revista de la construcción 18, no. 2: 247-257.
Image processing methods are increasingly used in civil engineering, especially in the maintenance of concrete structures. Current digital cameras and post-processing methods allow verifying qualitatively the state of conservation of wide areas of concrete in dams and bridges. When dealing with building refurbishments and rehabilitation, it is important to verify that existing structural elements fit the requirements of the standards; in the case of structures formed by traditional RC joists, cracking of the bottom-face provides information about the serviceability of these elements. This research proposed and put in practice through experimental tests an image post-processing method for quantification of cracking (five specimens were used and calibrated). Based on a sequence of shots and through a complex step-by-step post-processing, cracks were identified and measured to calibrate this method for real purposes. The method quantifies the crack opening width and spacing by analyzing the bottom-face of the joists through the shots. Measured values of crack spacing are very similar to those predicted by the standards, while the values of crack opening width differ more from theoretical ones due to the scattering of results. However, the proposed method has been proved as suitable and useful for fast inspections of RC elements under bending.
Albert Albareda-Valls; Alejandra Bustos Herrera; Joan Lluís Zamora Mestre; Saeid S. Zaribaf. Image Post-Processing Method for Quantification of Cracking in RC Precast Beams under Bending. Buildings 2018, 8, 158 .
AMA StyleAlbert Albareda-Valls, Alejandra Bustos Herrera, Joan Lluís Zamora Mestre, Saeid S. Zaribaf. Image Post-Processing Method for Quantification of Cracking in RC Precast Beams under Bending. Buildings. 2018; 8 (11):158.
Chicago/Turabian StyleAlbert Albareda-Valls; Alejandra Bustos Herrera; Joan Lluís Zamora Mestre; Saeid S. Zaribaf. 2018. "Image Post-Processing Method for Quantification of Cracking in RC Precast Beams under Bending." Buildings 8, no. 11: 158.
This work deals with daylighting for indoor quality atmospheres, considering building skins and side-views. We also tested the vision perception provided by highly glazed façades. Several Spanish restaurants were analyzed, and two were assessed and measured under outside midday high luminance. The selected pictures can be identified as restaurants via MIT Scene Recognition software and are used to demonstrate working, stressful, and socializing atmospheres. Light and vision detailed analysis was performed defining three workplanes—“table”, “person”, and “outside”—from the viewpoint of the user. The obtained DGP (daylight glare probability) for the first case (facing southeast) shows a higher glare probability than the second (facing north). In both restaurants, there is notable spatial contrast and high information content. If, in the overall perception, the adaptation from the intermediate workplane is considered, the DGP is lower than if only one workplane is considered. The conducted indicative survey shows that there is a high light contrast, and there are some undesirable visual elements. The studied fully glazed façades tend to provide fraught atmospheres. These would be useful for some stimulating activities; however, for calm restaurants that offer tasting menus with quality food, it seems that the studied fully glazed façades may not be suitable.
Urtza Uriarte; Rufino J. Hernández; Joan L. Zamora; Antonio Isalgue. Side-View Atmospheres under Outdoor Midday High Luminance. Buildings 2016, 6, 53 .
AMA StyleUrtza Uriarte, Rufino J. Hernández, Joan L. Zamora, Antonio Isalgue. Side-View Atmospheres under Outdoor Midday High Luminance. Buildings. 2016; 6 (4):53.
Chicago/Turabian StyleUrtza Uriarte; Rufino J. Hernández; Joan L. Zamora; Antonio Isalgue. 2016. "Side-View Atmospheres under Outdoor Midday High Luminance." Buildings 6, no. 4: 53.
Currently, the most balanced technical solution for sun protection of glazed areas is the Venetian blind, because it prevents the entry of direct solar radiation, but at the same time provides a view of the outside and allows light to diffuse into the building. The current challenge is to find an improved, integrated technical solution at an affordable cost that requires low maintenance, is suitable for every geographical situation (latitude) and adaptable to each orientation of building fac¸ades. The solar control glass fac¸ade FB720 presented here integrates into a single structural element the advantages of protective glass and Venetian blinds.Peer ReviewedPostprint (published version
Pablo Garrido; Joan Lluís Zamora; José Manuel Marco; Moisés Lostao. FB720 project: development of new solar control glazing with passive seasonal discrimination of solar radiation incomes. International Journal of Energy and Environmental Engineering 2015, 6, 309 -317.
AMA StylePablo Garrido, Joan Lluís Zamora, José Manuel Marco, Moisés Lostao. FB720 project: development of new solar control glazing with passive seasonal discrimination of solar radiation incomes. International Journal of Energy and Environmental Engineering. 2015; 6 (3):309-317.
Chicago/Turabian StylePablo Garrido; Joan Lluís Zamora; José Manuel Marco; Moisés Lostao. 2015. "FB720 project: development of new solar control glazing with passive seasonal discrimination of solar radiation incomes." International Journal of Energy and Environmental Engineering 6, no. 3: 309-317.
Joan-Lluís Zamora I Mestre; José Fernández Rodríguez. Proposta simplificada de codificació alfanumèrica en els documents de planejament urbanístic. ACE: Architecture, City and Environment 2007, 1 .
AMA StyleJoan-Lluís Zamora I Mestre, José Fernández Rodríguez. Proposta simplificada de codificació alfanumèrica en els documents de planejament urbanístic. ACE: Architecture, City and Environment. 2007; (5.):1.
Chicago/Turabian StyleJoan-Lluís Zamora I Mestre; José Fernández Rodríguez. 2007. "Proposta simplificada de codificació alfanumèrica en els documents de planejament urbanístic." ACE: Architecture, City and Environment , no. 5.: 1.