{
  "abstract": "Rohingya refugees in Cox's Bazar live in temporary tarpaulin-and-bamboo shelters that provide limited protection from heat, humidity, winter cold, and poor daylight. This study evaluated Jutin, a jute-fiber composite material, by comparing the environmental performance and user experience of six Jutin shelters with adjacent tarpaulin shelters across three seasons. We conducted a mixed-method study, monitoring indoor and outdoor temperature, humidity, and illuminance, and conducting 10 in-depth interviews (IDIs), four focus group discussions (FGDs), and four key informant interviews (KIIs). A difference-in-difference (DiD) approach was used to compare indoor–outdoor temperature differences between Jutin and tarp shelters. Jutin shelters provided statistically significant daytime cooling advantages during the pre-monsoon (DiD: -1.37 °C; 95% CI: −2.63, −0.11; p = 0.041) and monsoon seasons (DiD: -1.76 °C; 95% CI: −3.21, −0.31; p = 0.029). A preliminary indication of improved winter nighttime warmth retention was observed (DiD: +0.91 °C; 95% CI: 0.04, 1.78; p = 0.043), although this requires replication. Jutin roofs transmitted more than ten times the natural light of tarp roofs, reaching 200–400 lx on sunny days and 30–70 lx on overcast days. Initial construction costs were higher for Jutin shelters (USD 1457 vs. USD 1051), but participants generally perceived them as more durable, comfortable, and secure. These pilot findings suggest that Jutin may improve indoor environmental quality in humanitarian shelters; larger studies are needed to assess durability, acceptability, life-cycle costs, implementation feasibility, and health outcomes.",
  "abstract_shown": true,
  "affiliations": [
    "Environmental Health and WASH, International Centre for Diarrhoeal Diseases Research, Bangladesh (ICDDR,B), Dhaka, Bangladesh",
    "Division of Epidemiology, Biostatistics, and Environmental Health, University of Memphis, Memphis, TN, USA",
    "University College of London, London, United Kingdom",
    "Heat and Health Research Centre, University of Sydney, New South Wales, Australia; Children's Health and Environment Program, Child Health Research Centre, The University of Queensland, QLD, South Brisbane, Australia",
    "Bangladesh Jute Mill Corporation, Dhaka, Bangladesh",
    "Department of Civil Engineering, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh",
    "Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA, USA"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 12,
  "authors": [
    {
      "name": "Farjana Jahan"
    },
    {
      "affs": [
        0
      ],
      "name": "Sk.Md. Kamrul Bashar"
    },
    {
      "affs": [
        1
      ],
      "name": "Abu Mohammed Naser"
    },
    {
      "affs": [
        2
      ],
      "name": "Mohammad Shamsudduha"
    },
    {
      "affs": [
        0
      ],
      "name": "Mahbubur Rahman"
    },
    {
      "affs": [
        3
      ],
      "name": "Sarker Masud Parvez"
    },
    {
      "affs": [
        0
      ],
      "name": "Abul Hares"
    },
    {
      "affs": [
        0
      ],
      "name": "Mohammad Saeed Munim"
    },
    {
      "affs": [
        0
      ],
      "name": "Rezaul Hasan"
    },
    {
      "affs": [
        4
      ],
      "name": "Mubarak Ahmed Khan"
    },
    {
      "affs": [
        5
      ],
      "name": "Nazrul Islam"
    },
    {
      "affs": [
        6
      ],
      "name": "Laura H. Kwong"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0h2dy8jcsqp41.bib",
  "cited_by": 0,
  "doi": "10.1016/j.cacint.2026.100504",
  "fulltext_url": "http://www.sciencedirect.com/science/article/pii/S2590252026002114",
  "id": "0h2dy8jcsqp41",
  "issns": [
    "2590-2520"
  ],
  "landing_url": "https://doi.org/10.1016/j.cacint.2026.100504",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "lcc",
      "GE1-350"
    ],
    [
      "lcc",
      "HT101-395"
    ],
    [
      "openalex",
      "2215|Building Energy and Comfort Optimization"
    ]
  ],
  "openalex": "W7223147079",
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-30",
  "publisher": "Elsevier",
  "ris": "https://research.draconitic.com/paper/0h2dy8jcsqp41.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T13:44:33Z",
      "native_id": "8a4e915ecb92485eac006379856beb87",
      "source": "doaj",
      "url": "https://doi.org/10.1016/j.cacint.2026.100504"
    }
  ],
  "subjects": [
    {
      "field": "earth",
      "origin": "lcc:GE1-350",
      "subfield": "environmental-science"
    }
  ],
  "title": "Indoor thermal comfort and natural light in Jute-based versus tarpaulin shelters: a mixed-methods pilot study in Cox's Bazar, Bangladesh",
  "title_text": "Indoor thermal comfort and natural light in Jute-based versus tarpaulin shelters: a mixed-methods pilot study in Cox's Bazar, Bangladesh",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T13:44:33Z",
  "url": "https://research.draconitic.com/paper/0h2dy8jcsqp41",
  "venue": "City and Environment Interactions",
  "versions": []
}