Comparative Assessment of Insulation Materials for Improving Indoor Air Quality in Building Retrofit
Abstract
This paper evaluates the impacts of different insulation materials on Indoor Air Quality (IAQ) and occupant health with a focus on the Volatile Organic Compound (VOC) emissions. The main aim is to identify options that minimize exposure rates while improving IAQ and energy in retrofitted buildings. A comprehensive literature review was conducted synthesizing scholarly articles, guidelines from international organizations, and information on pollutants, IAQ standards, and retrofit strategies. The findings show high emission rates for some insulation materials that could negatively affect health. Hemp insulation in contrast was identified as a promising solution exhibiting low VOC emissions compared to other insulation materials. As sustainable construction practices advance, hemp insulation emerges as a viable retrofit strategy for social housing by synergistically addressing performance gaps related to energy conservation, air quality, and thermal comfort. The synthesis of evidence from this paper suggests that, from environmental and public health perspectives, certain insulation materials are preferable for improving IAQ and reducing the risk of exposure to indoor air pollutants in retrofitted buildings.
Full text article
References
Adamkiewicz, G. Z. (2013). Moving environmental justice indoors: Understanding structural influences on residential exposure patterns in low-income communities. American Journal of Public Health.
Adamová, T.; Hradecký, J.; Pánek, M. Volatile Organic Compounds (VOCs) from Wood and Wood-Based Panels: Methods for Evaluation, Potential Health Risks, and Mitigation. Polymers 2020, 12, 2289. DOI: https://doi.org/10.3390/polym12102289
AirNow. (2023). Air Quality Index (AQI) Basics. Retrieved from AirNow: https://www.airnow.gov/aqi/aqi-basics/
Anastasios, I., & Itard, L. (2018). In-situ and real time measurements of thermal comfort and its determinants in thirty residential dwellings in the Netherlands. A+BE | Architecture and the Built Environment, 8(27), 95–138. https://doi.org/10.7480/abe.2018.27.3512 DOI: https://doi.org/10.59490/ABE.2018.27.3512
Aristotelis Avgelis, A. M. (2016). Indoor Air Quality Guidelines and Standards - A State of the Art Review. In International Journal of Ventilation (pp. 267-278). DOI: https://doi.org/10.1080/14733315.2004.11683921
Bone, A., Murray, V., Myers, I., Dengel, A., & Crump, D. (2010). Will drivers for home energy efficiency harm occupant health?. Perspectives in public health, 130(5), 233–238. https://doi.org/10.1177/1757913910369092 DOI: https://doi.org/10.1177/1757913910369092
Chan, W. R., & Joh, J. (2013). Analysis of air leakage measurements of US houses. Energy and Buildings, 66, 616-625. https://doi.org/10.1016/j.enbuild.2013.07.047 DOI: https://doi.org/10.1016/j.enbuild.2013.07.047
Chang, T., Ren, D., Shen, Z., Huang, Y., Sun, J., Cao, J., Zhou, J., Liu, H., Xu, H., Zheng, C., Pan, H., & He, C. (2017). Indoor air pollution levels in decorated residences and public places over Xi'an, China. Aerosol and Air Quality Research, 17(9), 2197-2205. https://doi.org/10.4209/aaqr.2016.12.0542 DOI: https://doi.org/10.4209/aaqr.2016.12.0542
CIBSE TM40. (2020). Chartered Institution of Building Services Engineers (CIBSE) TM40 - 2020 Guide – Indoor air quality comparisons. Scottish Government.
De Wilde, P. (2014). The gap between predicted and measured energy performance of buildings: A framework for investigation. Automation in Construction, 41, 40-49. https://doi.org/10.1016/j.autcon.2014.02.009 DOI: https://doi.org/10.1016/j.autcon.2014.02.009
Derbez, M., Wyart, G., Le Ponner, E., Ramalho, O., Ribéron, J., & Mandin, C. (2018). Indoor air quality in energy-efficient dwellings: Levels and sources of pollutants. Indoor air, 28(2), 318–338. https://doi.org/10.1111/ina.12431 DOI: https://doi.org/10.1111/ina.12431
Diaz Lozano Patino, E., & Siegel, J. A. (2018). Indoor environmental quality in social housing: A literature review. Building and Environment, 131, 1-11. https://doi.org/10.1016/j.buildenv.2018.01.013 DOI: https://doi.org/10.1016/j.buildenv.2018.01.013
EPA. (2023). EPA AirWATCH. Retrieved from Environment Protection Authority Victoria: https://www.epa.vic.gov.au/for-community/airwatch
German Federal Environmental Agencies. (2007). Indoor air guide values for TVOC in indoor air.
Ghobakhloo, S.; Khoshakhlagh, A.H.; Morais, S.; Mazaheri Tehrani, A. Exposure to Volatile Organic Compounds in Paint Production Plants: Levels and Potential Human Health Risks. Toxics 2023, 11, 111. DOI: https://doi.org/10.3390/toxics11020111
He, Z., Zhang, Y., & Wei, W. (2012). Formaldehyde and VOC emissions at different manufacturing stages of wood-based panels. Building and Environment, 47, 197-204. https://doi.org/10.1016/j.buildenv.2011.07.023 DOI: https://doi.org/10.1016/j.buildenv.2011.07.023
Ho, D. X., Kim, K. H., Sohn, J. R., Oh, Y. H., & Ahn, J. W. (2011). Emission rates of volatile organic compounds released from newly produced household furniture products using a large-scale chamber testing method. TheScientificWorldJournal, 11, 1597–1622. https://doi.org/10.1100/2011/650624
Ho, D. X., Kim, K. H., Sohn, J. R., Oh, Y. H., & Ahn, J. W. (2011). Emission rates of volatile organic compounds released from newly produced household furniture products using a large-scale chamber testing method. TheScientificWorldJournal, 11, 1597–1622. https://doi.org/10.1100/2011/650624 DOI: https://doi.org/10.1100/2011/650624
Hromadka, J., Korposh, S., Partridge, M. C., James, S. W., Davis, F., Crump, D., & Tatam, R. P. (2017). Multi-parameter measurements using optical fibre long period gratings for indoor air quality monitoring. Sensors and Actuators B: Chemical, 244, 217-225. https://doi.org/10.1016/j.snb.2016.12.050 DOI: https://doi.org/10.1016/j.snb.2016.12.050
Indoor Air Hygiene Institute. (2023). PM2.5 Explained. Retrieved from Indoor Air Hygiene Institute: https://www.indoorairhygiene.org/
International Hemp Building Association. (n.d.). Resources. Retrieved from https://internationalhempbuilding.org/resources/
Johansson, P., Donarelli, A., & Strandberg, P. (2018). Performance of insulation materials for historic buildings: case-studies comparing super insulation materials and hemp-lime. Proceedings of the 3rd International Conference on Energy Efficiency in Historic Buildings, EEHB2018, 80-88.
Kaiterra. (2021). Ozone in the Workplace: What Levels of Indoor Ozone Are Safe? Retrieved from Kaiterra: https://learn.kaiterra.com/en/resources/ozone-what-levels-are-safe
Kang, J., Liu, J., & Pei, J. (2017). The indoor volatile organic compound (VOC) characteristics and source identification in a new university campus in Tianjin, China. Journal of the Air & Waste Management Association (1995), 67(6), 725–737. https://doi.org/10.1080/10962247.2017.1280561 DOI: https://doi.org/10.1080/10962247.2017.1280561
Kephalopoulos, S., Geiss, O., Barrero-Moreno, J., D'Agostino, D., & Paci, D. (2016). Promoting healthy and energy efficient buildings in the European Union: National implementation of related requirements of the Energy Performance Buildings Directive (2010/31/EU) (Report No. EUR 27665 EN). European Commission, DG Joint Research Centre.
Koivisto, A., Kling, K., Hänninen, O., Jayjock, M., Löndahl, J., Wierzbicka, A., et al. (2019). Source-specific exposure and risk assessment for indoor aerosols. DOI: https://doi.org/10.1016/j.scitotenv.2019.02.398
Latif, E. (2020). A review of low-energy thermal insulation materials for building applications. Proceedings of International Conference. DOI: https://doi.org/10.1680/timfba.63518.005
Leech, J. A., Nelson, W. C., Burnett, R. T., Aaron, S., & Raizenne, M. E. (2002). It's about time: a comparison of Canadian and American time-activity patterns. Journal of exposure analysis and environmental epidemiology, 12(6), 427–432. https://doi.org/10.1038/sj.jea.7500244 DOI: https://doi.org/10.1038/sj.jea.7500244
Liu, C. H. J., Pomponi, F., & D'Amico, B. (2023). The extent to which hemp insulation materials can be used in Canadian residential buildings. Sustainability, 15(19), 14471. https://doi.org/10.3390/su151914471 DOI: https://doi.org/10.3390/su151914471
Majcen, D. (2016). Actual heating energy savings in thermally renovated Dutch dwellings. A+BE | Architecture and the Built Environment, 6(4), 157–196. Retrieved from https://journals.open.tudelft.nl/abe/article/view/6632 DOI: https://doi.org/10.1016/j.enpol.2016.07.015
Marlow, D., DeCapite, J., & Garcia, A. (2014). Spray polyurethane foam chemical exposures during spray application (EPHB Report No. 005-163). Division of Applied Research and Technology, Engineering and Physical Hazards Branch, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health.
Martínez, B., Gil, L., & Bernat, E. (2022). Study of an insulating hemp-based bio-material: Mechanical, thermal and acoustic properties. Materiales Compuestos, 7(1), 1-7. https://upcommons.upc.edu/handle/2117/386418 DOI: https://doi.org/10.23967/r.matcomp.2022.07.045
McAfee. (2021). CARBON MONOXIDE: The Silent Killer. Retrieved from McNair: https://www.mcair.com/resources/carbon-monoxide-the-silent-killer
Ortiz, M., Itard, L., & Bluyssen, P. M. (2020). Indoor environmental quality related risk factors with energy-efficient retrofitting of housing: A literature review. Energy and Buildings, 221, 110102. https://doi.org/10.1016/j.enbuild.2020.110102 DOI: https://doi.org/10.1016/j.enbuild.2020.110102
OSHA. (2020). OSHA. Technical Manual: Indoor air Quality Investigation. Retrieved from OSHA: https://www.osha.gov/otm
Pan, W. (2010). Relationships between air-tightness and its influencing factors of post-2006 new-build dwellings in the UK. Building and Environment, 45(11), 2387-2399. https://doi.org/10.1016/j.buildenv.2010.04.011 DOI: https://doi.org/10.1016/j.buildenv.2010.04.011
Pei, J., Yin, Y., & Liu, J. (2016). Long-term indoor gas pollutant monitor of new dormitories with natural ventilation. Energy and Buildings, 129, 514-523. https://doi.org/10.1016/j.enbuild.2016.08.033 DOI: https://doi.org/10.1016/j.enbuild.2016.08.033
Prashant Kumar, B. I. (2013). Footprints of air pollution and changing environment on the sustainability of. Science of the Total Environment. DOI: https://doi.org/10.1016/j.scitotenv.2012.11.056
RESETTM Air Standard for Commercial Interiors v2.0, 2018
Richardson, G., & Eick, S. A. (2006). The paradox of an energy-efficient home: is it good or bad for health?. Community practitioner : the journal of the Community Practitioners' & Health Visitors' Association, 79(12), 397–399.
Santamouris, M. (2020). Recent progress on urban overheating and heat island research.Integrated assessment of the energy, environmental, vulnerability, and health impact. Synergies with the global climate change, Energy Build. DOI: https://doi.org/10.1016/j.enbuild.2019.109482
Song, W., Cao, Y., Wang, D., Hou, G., Shen, Z., & Zhang, S. (2015). An Investigation on Formaldehyde Emission Characteristics of Wood Building Materials in Chinese Standard Tests: Product Emission Levels, Measurement Uncertainties, and Data Correlations between Various Tests. PloS one, 10(12), e0144374. https://doi.org/10.1371/journal.pone.0144374 DOI: https://doi.org/10.1371/journal.pone.0144374
Sunikka-Blank, M., & Galvin, R. (2012). Introducing the prebound effect: the gap between performance and actual energy consumption. Building Research & Information, 40(3), 260–273. https://doi.org/10.1080/09613218.2012.690952 DOI: https://doi.org/10.1080/09613218.2012.690952
USEPA. (2023). Volatile Organic Compounds’ Impact on Indoor Air Quality. Retrieved from USEPA: https://www.epa.gov/indoor-air-quality-iaq/volatile-organic-compounds-impact-indoor-air-quality
van den Brom, P., Meijer, A., & Visscher, H. (2017). Performance gaps in energy consumption: Household groups and building characteristics. Building Research & Information, 46(1), 1-17. https://doi.org/10.1080/09613218.2017.1312897 DOI: https://doi.org/10.1080/09613218.2017.1312897
Vinh Van Tran, D. P.-C. (2020). Indoor Air Pollution, Related Human Diseases, and Recent Trends in the Control and Improvement of Indoor Air Quality. DOI: https://doi.org/10.3390/ijerph17082927
Weschler C. J. (2011). Chemistry in indoor environments: 20 years of research. Indoor air, 21(3), 205–218. https://doi.org/10.1111/j.1600-0668.2011.00713.x DOI: https://doi.org/10.1111/j.1600-0668.2011.00713.x
WHO. (2000). Air Quality Guidelines for Europe. Retrieved from The World Health Organization.
WHO. (2020). World Health Organisation. Retrieved from Household air pollution: https://www.who.int/en/news-room/fact-sheets/detail/household-air-pollution-and-health
WHO. (2021). World Health Organisation Global Air Quality Guidelines.
Wi, S., Kang, Y., Yang, S., Kim, Y. U., & Kim, S. (2021). Hazard evaluation of indoor environment based on long-term pollutant emission characteristics of building insulation materials: An empirical study. Environmental pollution (Barking, Essex: 1987), 285, 117223. https://doi.org/10.1016/j.envpol.2021.117223 DOI: https://doi.org/10.1016/j.envpol.2021.117223
Yan, M., Zhai, Y., Shi, P., Hu, Y., Yang, H., & Zhao, H. (2018). Emission of volatile organic compounds from new furniture products and its impact on human health. Human and Ecological Risk Assessment. https://doi.org/10.1080/10807039.2018.1476126 DOI: https://doi.org/10.1080/10807039.2018.1476126
Yang, S., Perret, V., Hager Jörin, C., Niculita-Hirzel, H., Goyette Pernot, J., & Licina, D. (2020). Volatile organic compounds in 169 energy-efficient dwellings in Switzerland. Indoor air, 30(3), 481–491. https://doi.org/10.1111/ina.12667 DOI: https://doi.org/10.1111/ina.12667
Authors
Copyright (c) 2024 Vishnupriya Valeriparambil Narayanan, Arman Hashemi, Heba Elsharkawy, Darryl Newport, Lucienne G. Basaly

This work is licensed under a Creative Commons Attribution 4.0 International License.
- The Author shall grant to the Publisher and its agents the nonexclusive perpetual right and license to publish, archive, and make accessible the Work in whole or in part in all forms of media now or hereafter known under a Creative Commons Attribution 4.0 License or its equivalent, which, for the avoidance of doubt, allows others to copy, distribute, and transmit the Work under the following conditions:
- Attribution: other users must attribute the Work in the manner specified by the author as indicated on the journal Web site;
With the understanding that the above condition can be waived with permission from the Author and that where the Work or any of its elements is in the public domain under applicable law, that status is in no way affected by the license.
- The Author is able to enter into separate, additional contractual arrangements for the nonexclusive distribution of the journal's published version of the Work (e.g., post it to an institutional repository or publish it in a book), as long as there is provided in the document an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post online a pre-publication manuscript (but not the Publisher's final formatted PDF version of the Work) in institutional repositories or on their Websites prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (see The Effect of Open Access). Any such posting made before acceptance and publication of the Work shall be updated upon publication to include a reference to the Publisher-assigned DOI (Digital Object Identifier) and a link to the online abstract for the final published Work in the Journal.
- Upon Publisher's request, the Author agrees to furnish promptly to Publisher, at the Author's own expense, written evidence of the permissions, licenses, and consents for use of third-party material included within the Work, except as determined by Publisher to be covered by the principles of Fair Use.
- The Author represents and warrants that:
- The Work is the Author's original work;
- The Author has not transferred, and will not transfer, exclusive rights in the Work to any third party;
- The Work is not pending review or under consideration by another publisher;
- The Work has not previously been published;
- The Work contains no misrepresentation or infringement of the Work or property of other authors or third parties; and
- The Work contains no libel, invasion of privacy, or other unlawful matter.
- The Author agrees to indemnify and hold Publisher harmless from Author's breach of the representations and warranties contained in Paragraph 7 above, as well as any claim or proceeding relating to Publisher's use and publication of any content contained in the Work, including third-party content.
This work is licensed under a Creative Commons Attribution 4.0 International License.
Article Details
Accepted 2024-06-27
Published 2024-07-01
