Effects of Cool Roofs on Health and Indoor Environments
Official title: The Effects of Cool Roofs on Health, Environmental, and Economic Outcomes: a Global Multi-center Cluster-randomized Controlled Trial
Run by University of Auckland, New Zealand · NCT06579950 · Data updated 2026-11-12
This study is testing if special cool roofs that reflect sunlight can help people living in hot urban areas feel better and stay healthier by reducing heat exposure.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 3200 (estimated) |
| Sponsor | University of Auckland, New Zealand Academic / other |
| Locations | 5 sites (Ouagadougou and 4 other locations) |
| Status | Recruiting |
| Started | September 4, 2024 |
| Main results expected | September 30, 2027 |
| Study ends | September 30, 2027 |
| Registry record updated | February 27, 2026 |
| Trial ID | NCT06579950 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates for this study are permanent residents of households in urban areas experiencing high heat exposure and living in low-socioeconomic conditions.
✕Probably not a fit
Patients with roofs that are damaged or unstable, which would prevent the application of cool roof coatings, may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This study investigates the impact of sunlight-reflecting cool roof coatings on indoor temperatures and health outcomes in urban climate hotspots across four regions: Ouagadougou, Burkina Faso; Ahmedabad, India; Niue; and Hermosillo, Mexico. By implementing a multi-centre cluster-randomized controlled trial, the research aims to assess how these cool roofs can reduce heat exposure and improve health conditions related to heat stress, such as cardiovascular and mental health issues. The study targets vulnerable populations living in poor housing conditions who are particularly affected by extreme heat. The ultimate goal is to identify effective passive housing adaptations that can enhance well-being and reduce health risks associated with climate change.
Why it matters
Potential benefit: If successful, this intervention could significantly improve health outcomes for individuals living in extreme heat conditions by reducing indoor temperatures and associated health risks.
How similar studies have gone: Other studies have shown promising results with similar passive cooling interventions, indicating potential for success in this novel approach.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Permanent household resident. Exclusion Criteria: * Roof damage, inaccessible or instability of roof adversely affecting cool roof coating application. * Participant unable to provide written/verbal informed consent.
Where it's running
-
Fiji National University
Suva, Fiji Recruiting -
University Joseph Ki-Zerbo
Ouagadougou, Burkina Faso Active not recruiting -
Indian Institute of Public Health Gandhinagar
Ahmedabad, Gandhinagar, India Active not recruiting -
Instituto Tecnológico de Hermosillo
Hermosillo, Sanora, Mexico Not yet recruiting -
Niue
Alofi, Niue Active not recruiting
Study contacts
- Principal investigator: Collin Tukuitonga, Sir. Dr. — University of Auckland, New Zealand
- Study coordinator: Aditi Bunker, Dr
- Email: aditi.bunker@uni-heidelberg.de
- Phone: +49 6221 565344
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.