Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Monitoring and Modelling of Panelized Overcladding Retrofits in Canadian Climate
https://orcid.org/http://orcid.org/0000-0001-6091-4144
In Canada, most community housing was constructed 50+ years ago and requires extensive retrofit to continue to provide viable housing and to reduce energy use and carbon emissions. Improving the thermal resistance and airtightness of a building envelope improves energy efficiency but can also lead to moisture accumulation. The goal of a deep envelope retrofit, therefore, is to improve energy efficiency, durability, health, and resiliency, without accumulating excessive moisture, which left unchecked can cause rot and mold. The Prefabricated Exterior Energy Retrofit (PEER) project seeks to develop a technical approach to building envelope retrofit that is rapid (reducing impact on the occupants), simple, and improves resilience and efficiency. The process involves scanning a building to obtain dimensions, and prefabricating custom wall panels that include fenestration, control layers and cladding and installing them directly over existing facades. A demonstration of the process was conducted on a block of 1950s row housing using an expanded polystyrene (EPS) based structural insulated panel (SIP) as part of a net-zero energy/carbon retrofit. The wood frame building’s existing brick veneer was retained to reduce demolition labour and disruption. This increased moisture risk as the brick could potentially retain significant moisture. This paper presents a hygrothermal model that was developed to assess the risk with the proposed design. The model confirms that there is no mold risk for this demonstration project, but a similar retrofit implementation in a wetter city, such as Vancouver, could present a mold risk.
Monitoring and Modelling of Panelized Overcladding Retrofits in Canadian Climate
https://orcid.org/http://orcid.org/0000-0001-6091-4144
In Canada, most community housing was constructed 50+ years ago and requires extensive retrofit to continue to provide viable housing and to reduce energy use and carbon emissions. Improving the thermal resistance and airtightness of a building envelope improves energy efficiency but can also lead to moisture accumulation. The goal of a deep envelope retrofit, therefore, is to improve energy efficiency, durability, health, and resiliency, without accumulating excessive moisture, which left unchecked can cause rot and mold. The Prefabricated Exterior Energy Retrofit (PEER) project seeks to develop a technical approach to building envelope retrofit that is rapid (reducing impact on the occupants), simple, and improves resilience and efficiency. The process involves scanning a building to obtain dimensions, and prefabricating custom wall panels that include fenestration, control layers and cladding and installing them directly over existing facades. A demonstration of the process was conducted on a block of 1950s row housing using an expanded polystyrene (EPS) based structural insulated panel (SIP) as part of a net-zero energy/carbon retrofit. The wood frame building’s existing brick veneer was retained to reduce demolition labour and disruption. This increased moisture risk as the brick could potentially retain significant moisture. This paper presents a hygrothermal model that was developed to assess the risk with the proposed design. The model confirms that there is no mold risk for this demonstration project, but a similar retrofit implementation in a wetter city, such as Vancouver, could present a mold risk.
Monitoring and Modelling of Panelized Overcladding Retrofits in Canadian Climate
https://orcid.org/http://orcid.org/0000-0001-6091-4144
In Canada, most community housing was constructed 50+ years ago and requires extensive retrofit to continue to provide viable housing and to reduce energy use and carbon emissions. Improving the thermal resistance and airtightness of a building envelope improves energy efficiency but can also lead to moisture accumulation. The goal of a deep envelope retrofit, therefore, is to improve energy efficiency, durability, health, and resiliency, without accumulating excessive moisture, which left unchecked can cause rot and mold. The Prefabricated Exterior Energy Retrofit (PEER) project seeks to develop a technical approach to building envelope retrofit that is rapid (reducing impact on the occupants), simple, and improves resilience and efficiency. The process involves scanning a building to obtain dimensions, and prefabricating custom wall panels that include fenestration, control layers and cladding and installing them directly over existing facades. A demonstration of the process was conducted on a block of 1950s row housing using an expanded polystyrene (EPS) based structural insulated panel (SIP) as part of a net-zero energy/carbon retrofit. The wood frame building’s existing brick veneer was retained to reduce demolition labour and disruption. This increased moisture risk as the brick could potentially retain significant moisture. This paper presents a hygrothermal model that was developed to assess the risk with the proposed design. The model confirms that there is no mold risk for this demonstration project, but a similar retrofit implementation in a wetter city, such as Vancouver, could present a mold risk.
Monitoring and Modelling of Panelized Overcladding Retrofits in Canadian Climate
Lecture Notes in Civil Engineering
Berardi, Umberto (Herausgeber:in) / McNally, Jordan (Autor:in) / Baldwin, Christopher (Autor:in) / Cruickshank, Cynthia A. (Autor:in) / Conley, Brock (Autor:in) / Carver, Mark (Autor:in)
International Association of Building Physics ; 2024 ; Toronto, ON, Canada
06.12.2024
7 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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