Test Results Showed a Reduced Need for Air Conditioning with Belzona Cool Roof Coating

Date: 12/06/2024
A roof coated with Belzona 3111 (Flexible Membrane)

The cool roof coating Belzona 3111 showed high solar reflectance properties, with an average SRI of 99.4%.

Globa warming is leading to an increased use of air conditioning, which however further contributes to the problem. Yet, a cool roof which strongly reflects sunlight and also cools itself by efficiently emitting any heat that has been absorbed can mitigate this damaging process. In a recent Solar Reflectance Index (SRI) testing, the results have highlighted that the cool roof coating Belzona 3111 demonstrates high solar reflectance properties – with an average SRI of 99.4%.

Belzona 3111 (Flexible Membrane) is a cold-applied liquid coating with waterproofing and weatherproofing properties, specifically designed for long-term roof protection: the single-component water-based roof coating will bond strongly to all types of roofing materials, following even complex roof contours. It is certified by the British Board of Agrement and ETA-Danmark (European Technical Assessment).

“The isocyanate-free system has been proven to provide excellent protection of roofs for in excess of 25 years. Belzona 3111 (Flexible Membrane) has an important role to play in helping to alleviate the destructive cycle of increased air conditioning usage. By coating roofs with this cool roof system, it will help to reduce internal temperatures. Therefore, asset owners can significantly reduce the need to use air conditioning. As a result, this will enable asset owners to not only make significant financial savings, but to also reduce their carbon footprint as well,” has stated Isaac Atkinson, the technical coordinator of Belzona

The SRI testing examines the solar reflectance and thermal emissivity of a material and provides a value used to indicate how hot a material will likely become when its surface is exposed to solar radiation. The SRI is defined on a scale of 0 - 100, with standard black being 0 and standard white being 100. When the SRI testing was conducted in accordance with ASTM E1980-11, Belzona 3111 (Flexible Membrane) in white achieved an average SRI of 99.4%.