Low-Emissivity Window Films as an Energy Retrofit Option for a Historical Stone Building in Cold Climate

Low-emissivity (low-E) window films are designed to improve the thermal comfort and energy performance of buildings. These films can be applied to different glazing systems without having to change the whole window. This makes it possible to apply films to windows in old and historical buildings for...

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Autores principales:	Saman Abolghasemi Moghaddam, Magnus Mattsson, Arman Ameen, Jan Akander, Manuel Gameiro Da Silva, Nuno Simões
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	low-E window films LCC IDA ICE building energy simulation historical buildings retrofit Technology T
Acceso en línea:	https://doaj.org/article/a7136824756447e1b3e8a37e898270ab
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spelling	oai:doaj.org-article:a7136824756447e1b3e8a37e898270ab2021-11-25T17:26:56ZLow-Emissivity Window Films as an Energy Retrofit Option for a Historical Stone Building in Cold Climate10.3390/en142275841996-1073https://doaj.org/article/a7136824756447e1b3e8a37e898270ab2021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/22/7584https://doaj.org/toc/1996-1073Low-emissivity (low-E) window films are designed to improve the thermal comfort and energy performance of buildings. These films can be applied to different glazing systems without having to change the whole window. This makes it possible to apply films to windows in old and historical buildings for which preservation regulations often require that windows should remain unchanged. This research aims to investigate the impacts of low-E window films on the energy performance and thermal comfort of a three-story historical stone building in the cold climate of Sweden using the simulation software “IDA ICE”. On-site measurements were taken to acquire thermal and optical properties of the windows. This research shows that the application of the low-emissivity window film on the outward-facing surface of the inner pane of the double-glazed windows helped to reduce heat loss through the windows in winter and unwanted heat gains in summer by almost 36% and 35%, respectively. This resulted in a 6% reduction in the building’s annual energy consumption for heating purposes and a reduction in the percentage of total occupant hours with thermal dissatisfaction from 14% (without the film) to 11% (with the film). However, the relatively high price of the films and low price of district heating results in a rather long payback period of around 30 years. Thus, the films seem scarcely attractive from a purely economic viewpoint, but may be warranted for energy/environmental and thermal comfort reasons.Saman Abolghasemi MoghaddamMagnus MattssonArman AmeenJan AkanderManuel Gameiro Da SilvaNuno SimõesMDPI AGarticlelow-E window filmsLCCIDA ICEbuilding energy simulationhistorical buildings retrofitTechnologyTENEnergies, Vol 14, Iss 7584, p 7584 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	low-E window films LCC IDA ICE building energy simulation historical buildings retrofit Technology T
spellingShingle	low-E window films LCC IDA ICE building energy simulation historical buildings retrofit Technology T Saman Abolghasemi Moghaddam Magnus Mattsson Arman Ameen Jan Akander Manuel Gameiro Da Silva Nuno Simões Low-Emissivity Window Films as an Energy Retrofit Option for a Historical Stone Building in Cold Climate
description	Low-emissivity (low-E) window films are designed to improve the thermal comfort and energy performance of buildings. These films can be applied to different glazing systems without having to change the whole window. This makes it possible to apply films to windows in old and historical buildings for which preservation regulations often require that windows should remain unchanged. This research aims to investigate the impacts of low-E window films on the energy performance and thermal comfort of a three-story historical stone building in the cold climate of Sweden using the simulation software “IDA ICE”. On-site measurements were taken to acquire thermal and optical properties of the windows. This research shows that the application of the low-emissivity window film on the outward-facing surface of the inner pane of the double-glazed windows helped to reduce heat loss through the windows in winter and unwanted heat gains in summer by almost 36% and 35%, respectively. This resulted in a 6% reduction in the building’s annual energy consumption for heating purposes and a reduction in the percentage of total occupant hours with thermal dissatisfaction from 14% (without the film) to 11% (with the film). However, the relatively high price of the films and low price of district heating results in a rather long payback period of around 30 years. Thus, the films seem scarcely attractive from a purely economic viewpoint, but may be warranted for energy/environmental and thermal comfort reasons.
format	article
author	Saman Abolghasemi Moghaddam Magnus Mattsson Arman Ameen Jan Akander Manuel Gameiro Da Silva Nuno Simões
author_facet	Saman Abolghasemi Moghaddam Magnus Mattsson Arman Ameen Jan Akander Manuel Gameiro Da Silva Nuno Simões
author_sort	Saman Abolghasemi Moghaddam
title	Low-Emissivity Window Films as an Energy Retrofit Option for a Historical Stone Building in Cold Climate
title_short	Low-Emissivity Window Films as an Energy Retrofit Option for a Historical Stone Building in Cold Climate
title_full	Low-Emissivity Window Films as an Energy Retrofit Option for a Historical Stone Building in Cold Climate
title_fullStr	Low-Emissivity Window Films as an Energy Retrofit Option for a Historical Stone Building in Cold Climate
title_full_unstemmed	Low-Emissivity Window Films as an Energy Retrofit Option for a Historical Stone Building in Cold Climate
title_sort	low-emissivity window films as an energy retrofit option for a historical stone building in cold climate
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/a7136824756447e1b3e8a37e898270ab
work_keys_str_mv	AT samanabolghasemimoghaddam lowemissivitywindowfilmsasanenergyretrofitoptionforahistoricalstonebuildingincoldclimate AT magnusmattsson lowemissivitywindowfilmsasanenergyretrofitoptionforahistoricalstonebuildingincoldclimate AT armanameen lowemissivitywindowfilmsasanenergyretrofitoptionforahistoricalstonebuildingincoldclimate AT janakander lowemissivitywindowfilmsasanenergyretrofitoptionforahistoricalstonebuildingincoldclimate AT manuelgameirodasilva lowemissivitywindowfilmsasanenergyretrofitoptionforahistoricalstonebuildingincoldclimate AT nunosimoes lowemissivitywindowfilmsasanenergyretrofitoptionforahistoricalstonebuildingincoldclimate
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Low-Emissivity Window Films as an Energy Retrofit Option for a Historical Stone Building in Cold Climate

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