Balancing Trade-offs between Deep Energy Retrofits and Heritage Conservation: A Methodology and Case Study. Issue 1 (2nd January 2022)

• Record Type: Journal Article
• Authors: Ide, Larissa; Gutland, Michael; Bucking, Scott; Santana Quintero, Mario
• Is Part Of: International journal of architectural heritage. Volume 16:Issue 1(2022)
• Page Start: 97
• Page End: 116
• Publication Date: 2022-01-02
• Subjects: Building envelope -- building simulation -- calibration -- cultural heritage -- decision analysis -- deep energy retrofits -- historic building -- rehabilitation -- residential buildings -- sustainability; Architecture -- Conservation and restoration -- Periodicals; Historic buildings -- Periodicals; Historic preservation -- Planning -- Periodicals; 721.0288
• DOI: 10.1080/15583058.2020.1753261
• Languages: English
• ISSNs: 1558-3058

Abstract

ABSTRACT: Drastic reductions in energy consumption within existing buildings are required to achieve climate change mitigation targets. However, a portion of existing buildings have important historic values that need to be conserved. The goal of this paper is to present a methodology and decision-framework for deep energy retrofit analyses that balances trade-offs between conservation and sustainability. This methodology includes historic recording, documentation, a detailed energy model, and calibration to monthly data. An historic house in Ottawa, Canada is studied to demonstrate the use of the methodology. The energy retrofit analysis suggests 67% energy savings are achievable by increasing envelope thermal resistance to 4.1 m 2 -K/W, reducing air infiltration by 70% to 4.2 ACH at 50 Pa through air sealing and an air-vapour barrier, rehabilitating windows to be triple-pane low-E assemblies, using an air-source heat pump to supplement the existing gas boiler, daylight sensors and controls, and solar PV panels.