Cool Roofing

With global temperatures rising due to climate change, overheating in buildings, especially NZEBs, has become a major challenge. Conventional roofing materials absorb and hold heat, which can lead to higher indoor temperatures and more dependency on air conditioning. Cool roofing systems have appeared as a passive strategy to mitigate overheating by reflecting solar radiation and heat absorption.

Recommended Coating

Material: Biomaterial-based composite with Oyster Shell powders and Polyvinylidene fluoride polymer has demonstrated thermal reflectance properties (Oukmi et al., 2024).

Benefit: This coating provides a Solar Reflectance Index (SRI) of 113 and reflects approximately 90% of incident solar radiation, substantially reducing heat gain.

Based on an experiment conducted in Signes, France

The predicted thermal load on the comparison of roofs in kWh