Apply to the 2019 Million Cool Roofs Challenge (Win $100,000 in funding)


2019 Million Cool Roofs ChallengeThe Million Cool Roofs Challenge 2019 is accepting applications. The Million Cool Roofs Challenge is looking for the most impactful proposals to rapidly scale up the use of cool roofs in countries with large numbers of people facing heat stress risks.

Projects may include, but are not limited to, one or more of the following activities:

  • Demonstrator projects
  • Training programmes
  • Policy change (e.g. building codes)
  • Awareness raising and communication campaigns
  • Volunteer programmes
  • Novel approaches to financing and fundraising
  • Stakeholder coordination
  • Building up of local supply chains
  • Data gathering and impact measurement
  • New business models for companies selling cool coatings

The programme objective is to improve access to cooling, and so it is expected that projects will include application of cool roof materials to buildings that do not currently have air conditioning, for example houses in informal settlements in low-income neighbourhoods. However, in order to seed change and embed the approach, projects may also include buildings that have air conditioning and can reduce their energy consumption through the use of cool roofs, providing a stronger financial incentive for the owners and a more sustainable business model that can enable cool roof ecosystems to develop locally.

Projects are likely to involve multiple organisations, but should have a single lead organisation responsible for coordinating any other organisations involved and receiving the funds.


The eligibility criteria for the Million Cool Roofs Challenge are as follows:


The Challenge is open to entrants globally, but entrants must deploy cool roof materials in an Article 5 Group 1 (A5 Group 1) country as defined in the Montreal Protocol on Substances that Deplete the Ozone Layer. Funding from the Challenge can only be allocated for, or in recognition of, cool roof deployment in an A5 Group 1 country. However, applications cannot be accepted teams that contain an organisation that is incorporated in a country on the UK or EU sanctions lists for countries for which financial sanctions apply, whether they are applying as a single organisation or as part of a group.


Entries must be focused on cool roof deployment in a single country and deployments clustered within a single city or region are encouraged. However, special dispensation may be granted via prior agreement for applications comprising partnerships of several small countries that would not be able to reach the required scale individually.


Applications may be from single organisations or consortia of multiple organisations, but if applying in a consortia there must be a single lead applicant. This lead applicant must be a registered legal entity and will be the entity that receives the funds and is responsible for any division of the funds or sub-contracting to partners. They are also responsible for ensuring all members of the team act in accordance with the terms and conditions of the Challenge. Lead applicants may be any type of organisation. Example lead applicants include local or national government organisation, university or research institution, international or local non-profit organisation, for-profit company and international organisation.


If the lead applicant is not based in the country of deployment (which must be an eligible A5 Group 1 country as outlined in Point 1: Global entries), then they must have a named local partner, which is a constituted organisation, involved in the application that has committed to participate in the programme. Entrants must have an understanding of their intended market and be able to demonstrate how their solution and approach is suitable for that market. Entrants must also be able to demonstrate how their solution will be developed and implemented in collaboration with the local community, and clearly show how the community will benefit from the solution.


Entrants must have the capacity and skills to develop their entry with the aim of scaling their solution achieving 1 million square miles of Cool Roofs by the final judging stage, currently scheduled for December 2020.


Entrants must use cool roofing materials that meet the minimum standards certified according to testing procedures approved by the Global Cool Cities Alliance (GCCA).


Entrants must own, or have written permission to use, the intellectual property relevant to their entry. All entrants need to demonstrate a willingness to share information about their solutions for the purposes of the Challenge.

Funding information

The Challenge will award $100,000 grants to up to ten teams this year to deploy solar reflective coating and/or materials in an eligible country between August 2019 and December 2020. From there, $1 million will be awarded in 2021 to the team that has demonstrated the best sustainable and transferable model for rapid deployment of cool roofs in an eligible country and best meets the judging criteria. Materials should also meet minimum performance standards and be applied to roofs of buildings regularly occupied by people.

How to apply

Please complete the Challenge Entry Form. If you’d like to preview the form before starting your application, you can do so on HERE 

For more information,please visit


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