Assessing the Effect of Cool Roofs on Health Using Smartwatches in Niue
NCT ID: NCT06571019
Last Updated: 2024-12-05
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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RECRUITING
NA
200 participants
INTERVENTIONAL
2024-09-04
2026-01-31
Brief Summary
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Heat exposure can instigate and worsen numerous physical, mental and social health conditions. The worst adverse health effects are experienced in communities that are least able to adapt to heat exposure. By reducing indoor temperatures, cool roof use may promote heart health, sleep and physical activity in household occupants.
The long-term research goal of the investigators is to identify viable passive housing adaptation technologies with proven health benefits to reduce the burden of heat stress in communities affected by heat in Niue. To meet this goal, the investigators will conduct a randomized controlled trial to establish the effects of cool roof use on heart rate, sleep and physical activity in Niue.
Detailed Description
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Pacific Islands and other small island developing states are among the most vulnerable to the adverse impacts of climate change and are likely to experience increases in ambient air temperature over the coming decades. People in Niue are exposed to heat and humidity year-round. The Pacific Islands have a large burden of non-communicable diseases (NCDs), with nearly three-quarters of deaths due to NCDs. The combined burden of heat and NCDs places Pacific Island populations at greater risk of adverse health effects from heat extremes.
Sunlight-reflecting cool roof coatings passively reduce indoor temperatures and lower energy use, offering protection to home occupants from extreme heat. The investigators therefore aim to conduct a randomized controlled trial investigating the effects of cool roofs on heart rate, sleep and physical activity using smartwatches in Niue.
The trial will quantify whether cool roofs are an effective passive home cooling intervention with beneficial health effects for vulnerable populations in Niue. Findings will inform regional and global policy responses on scaling cool roof implementation to protect people from increasing heat exposure driven by climate change.
Conditions
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Keywords
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Study Design
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RANDOMIZED
PARALLEL
PREVENTION
DOUBLE
Study Groups
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Intervention
Households will receive sunlight reflecting 'cool roof' coating on their roofs.
Cool roof
Cool roofs are a heat-reflecting material that can be applied to existing household roofing in the form of a liquid-applied membrane. Cool roofs work by increasing solar reflectance (the ability to reflect the visible wavelengths of sunlight, reducing heat transfer to the surface) and thermal emittance (the ability to radiate absorbed solar energy) thereby reducing the amount of heat transferred into the home.
Control
No cool roof application. Households will keep their original roofing for the duration of the trial.
No interventions assigned to this group
Interventions
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Cool roof
Cool roofs are a heat-reflecting material that can be applied to existing household roofing in the form of a liquid-applied membrane. Cool roofs work by increasing solar reflectance (the ability to reflect the visible wavelengths of sunlight, reducing heat transfer to the surface) and thermal emittance (the ability to radiate absorbed solar energy) thereby reducing the amount of heat transferred into the home.
Eligibility Criteria
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Inclusion Criteria
* Consenting adult aged 18 years and over.
* Expected to be available to participate in the study for at least nine months in the next 12 months.
* Willing and able to wear a smartwatch.
Household criteria:
* House has a metal roof.
* House is single-story.
Exclusion Criteria
* One participant per household
* Does not have a smartphone with an internet connection that can connect to the smartwatch.
Household criteria:
* Unstable house structure that does not permit the application of cool roof materials.
* Inaccessible by the research team.
* Significant roof damage defined as any penetrative roof defect that results in a hole in the roof OR over 25% of the roof rusted.
18 Years
ALL
Yes
Sponsors
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Heidelberg University
OTHER
London School of Hygiene and Tropical Medicine
OTHER
Rutgers University
OTHER
Secretaría de Educación Pública, México
OTHER_GOV
University of Ouagadougou, Burkina Faso
OTHER
Indian Institute of Public Health, India
OTHER
Labfront
INDUSTRY
Cognifit
UNKNOWN
Resene
INDUSTRY
Habitat for Humanity
OTHER
The Tindall Foundation
OTHER
Pacific Community
OTHER
Wellcome Trust
OTHER
Aditi Bunker
OTHER
Responsible Party
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Aditi Bunker
Co-Principal Investigator
Principal Investigators
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Collin Tukuitonga, Sir. Dr.
Role: PRINCIPAL_INVESTIGATOR
University of Auckland, New Zealand
Locations
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University of Auckland
Auckland, , Niue
Countries
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Central Contacts
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Facility Contacts
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Collin Tukuitonga
Role: primary
Noah Bunkley, Dr.
Role: backup
Collin Tukuitonga, Sir. Dr.
Role: backup
Chris Bullen, Prof. Dr.
Role: backup
Noah H Bunkley, Dr.
Role: backup
Aditi Bunker, Dr.
Role: backup
Related Links
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Related Info
Other Identifiers
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226745/Z/22/Z
Identifier Type: OTHER_GRANT
Identifier Source: secondary_id
3728161
Identifier Type: -
Identifier Source: org_study_id