Improved health through passive cooling: Market-based approaches to promoting cool roofs in India

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00040465

Enrollment

1200

Registered

2026-06-22

Start date

2026-06-22

Completion date

Unknown

Last updated

2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Heat Strain Score Index

Interventions

Group 1: Control group – community-based information session: Participants are invited to attend a community-based information session. They will learn basic information about the 'cool roofs' and th

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Household with roof of cement/tin/metal sheets.

Exclusion criteria

Exclusion criteria: Individuals who are unable to give consent are ineligible to participate. Households with roofs in very poor condition that do not allow for the application of the Cool-Roof paint.

Design outcomes

Primary

Measure	Time frame
Heat Strain Score Index (HSSI, Dehghan et al., 2013) Definition: Experience of heat stress measured using the heat strain score index. Instrument: The HSSI will be assessed using a 18-item recall questionnaire. The HSSI is a validated assessment of heat stress in the workplace, which we adapt to the home setting. A score of 18 indicates the onset of heat-induced illness. Time of Measurement: 6 months after cool roof installation.	—

Measure

Time frame

Heat Strain Score Index (HSSI, Dehghan et al., 2013) Definition: Experience of heat stress measured using the heat strain score index. Instrument: The HSSI will be assessed using a 18-item recall questionnaire. The HSSI is a validated assessment of heat stress in the workplace, which we adapt to the home setting. A score of 18 indicates the onset of heat-induced illness. Time of Measurement: 6 months after cool roof installation.

—

Secondary

Measure	Time frame
Climate anxiety: (Climate Change Anxiety Scale (CCAS); Clayton & Karzsia, 2020) GAD-7: (Generalized Anxiety Questionnaire GAD-7; Spitzer et al., 2006) Solastalgia: (Brief Solastalgia Scale (BSS); Christensen et al., 2024) PHQ-9: depression (Patient Health Questionnaire PHQ-9; Kroenke et al., 2001) Aggression (Buss Perry Aggression Questionnaire SF- BPAQ; Bryant & Smith, 2001) Other self-reported outcomes: Sleep duration: Self-reported duration of sleep in hours. Sleep awakenings: Self-reported frequency of awakenings during nighttime sleep. Heat-related symptoms: Self-reported occurance of heat related symptoms during the last heat period. Instruments: Secondary outcomes will be assessed by the means of a face-to-face interviews (Recall questions answered by individual using the scales mentioned above). Time of Measurement: 6 months after cool roof installation.	—

Measure

Time frame

Climate anxiety: (Climate Change Anxiety Scale (CCAS); Clayton & Karzsia, 2020) GAD-7: (Generalized Anxiety Questionnaire GAD-7; Spitzer et al., 2006) Solastalgia: (Brief Solastalgia Scale (BSS); Christensen et al., 2024) PHQ-9: depression (Patient Health Questionnaire PHQ-9; Kroenke et al., 2001) Aggression (Buss Perry Aggression Questionnaire SF- BPAQ; Bryant & Smith, 2001) Other self-reported outcomes: Sleep duration: Self-reported duration of sleep in hours. Sleep awakenings: Self-reported frequency of awakenings during nighttime sleep. Heat-related symptoms: Self-reported occurance of heat related symptoms during the last heat period. Instruments: Secondary outcomes will be assessed by the means of a face-to-face interviews (Recall questions answered by individual using the scales mentioned above). Time of Measurement: 6 months after cool roof installation.

—

Countries

India

Contacts

Public ContactAditi Bunker

Heidelberg Institute of Global Health

aditi.bunker@uni-heidelberg.de+49 6221 540

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Aug 10, 2026