Climate change and the growing concern for occupant health and well-being have placed indoor environmental quality at the forefront of the public consciousness. Buildings are now considered complex systems capable of influencing thermal and hygrometric comfort and the healthiness of indoor air, making the choice of appropriate building materials crucial. This is the context in which the European MULTICLIMACT project fits in, aiming to develop innovative and resilient solutions for improving the built environment. This thesis aims to evaluate and compare the hygrometric behavior and contribution to indoor comfort of an innovative bio-based building system compared to a traditional commercial building system. To this end, two coupled finish-substrate systems were developed: a commercial system consisting of XPS panels with a traditional skim coat and finish, and an innovative UNIVPM system consisting of hemp and lime panels with a UNIVPM finish. The systems were initially tested at intermediate scale through experimental tests in glove boxes, under controlled conditions of low relative humidity at different saturation levels, to analyze their moisture absorption and release capacity. The results show that the innovative UNIVPM system is able to ensure greater relative humidity stability, reducing humidity fluctuations and promoting more favorable conditions for indoor comfort, passively, i.e., without consuming energy. These performances are particularly relevant for improving indoor health and developing sustainable and resilient building solutions. In a second phase, the building systems were installed in a real building, enabling the transition from intermediate to full-scale. In this context, the main internal and external environmental parameters were preliminarily monitored, taking into account the presence of occupants, to evaluate the system's behavior under real-world operating conditions and its contribution to indoor comfort.
Il cambiamento climatico e la crescente attenzione verso la salute e il benessere degli occupanti hanno reso centrale il tema della qualità dell’ambiente indoor. Gli edifici sono oggi considerati sistemi complessi capaci di influenzare il comfort termo-igrometrico e la salubrità dell’aria interna, rendendo fondamentale la scelta di materiali edilizi adeguati. In questo contesto si inserisce il progetto europeo MULTICLIMACT, che mira a sviluppare soluzioni innovative e resilienti per il miglioramento dell’ambiente costruito. La presente tesi ha l’obiettivo di valutare e confrontare il comportamento igrometrico e il contributo al comfort indoor di un sistema edilizio innovativo bio-based rispetto a un sistema edilizio commerciale tradizionale. A tal fine sono stati realizzati due sistemi accoppiati finitura–substrato: un sistema commerciale costituito da pannelli in XPS con rasante e finitura tradizionali, e un sistema innovativo UNIVPM composto da pannelli in canapa e calce con finitura UNIVPM. I sistemi sono stati inizialmente testati a scala intermedia mediante prove sperimentali in glove box, in condizioni controllate di umidità relativa bassa a differenti livelli di saturazione di questi, al fine di analizzarne la capacità di assorbimento e rilascio dell’umidità. I risultati mostrano che il sistema innovativo UNIVPM è in grado di garantire una maggiore stabilità dell’umidità relativa, riducendo le oscillazioni igrometriche e favorendo condizioni più favorevoli al comfort indoor, in modo passivo, cioè senza dispendio di energia. Queste prestazioni risultano particolarmente rilevanti in un’ottica di miglioramento della salubrità degli ambienti interni e di sviluppo di soluzioni edilizie sostenibili e resilienti. In una seconda fase, i sistemi edilizi sono stati installati in un edificio reale, consentendo il passaggio dalla scala intermedia a quella reale. In tale contesto sono stati monitorati in via preliminare i principali parametri ambientali interni ed esterni, tenendo conto della presenza degli occupanti, al fine di valutare il comportamento del sistema in condizioni di esercizio reali e il suo contributo al comfort indoor.
PRESTAZIONI A SCALA PILOTA E REALE DI UNA FINITURA INNOVATIVA SU PANNELLO “BIO-BASED” PER MIGLIORARE LA QUALITÀ DEGLI AMBIENTI INDOOR
PIERLUIGI, ELENA
2024/2025
Abstract
Climate change and the growing concern for occupant health and well-being have placed indoor environmental quality at the forefront of the public consciousness. Buildings are now considered complex systems capable of influencing thermal and hygrometric comfort and the healthiness of indoor air, making the choice of appropriate building materials crucial. This is the context in which the European MULTICLIMACT project fits in, aiming to develop innovative and resilient solutions for improving the built environment. This thesis aims to evaluate and compare the hygrometric behavior and contribution to indoor comfort of an innovative bio-based building system compared to a traditional commercial building system. To this end, two coupled finish-substrate systems were developed: a commercial system consisting of XPS panels with a traditional skim coat and finish, and an innovative UNIVPM system consisting of hemp and lime panels with a UNIVPM finish. The systems were initially tested at intermediate scale through experimental tests in glove boxes, under controlled conditions of low relative humidity at different saturation levels, to analyze their moisture absorption and release capacity. The results show that the innovative UNIVPM system is able to ensure greater relative humidity stability, reducing humidity fluctuations and promoting more favorable conditions for indoor comfort, passively, i.e., without consuming energy. These performances are particularly relevant for improving indoor health and developing sustainable and resilient building solutions. In a second phase, the building systems were installed in a real building, enabling the transition from intermediate to full-scale. In this context, the main internal and external environmental parameters were preliminarily monitored, taking into account the presence of occupants, to evaluate the system's behavior under real-world operating conditions and its contribution to indoor comfort.| File | Dimensione | Formato | |
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TESI PIERLUIGI ELENA.pdf
embargo fino al 22/08/2027
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https://hdl.handle.net/20.500.12075/25211