From heat reflection to energy savings: the role of hollow glass microspheres in cool roof coatings

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On behalf of Omya Specialty Materials team, we would like to thank everyone who joined the webinar led by David Gonzalez, Global Director of Strategy & Portfolio Lightweight Fillers! If you would like to rewatch the session — or if you could not attend — you would be able to find the recording here.

Discover how Omyasphere 900 can help achieve measurable cooling energy savings

From heat reflection to energy savings - The role of hollow microspheres in cool roof coatings

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Discover how hollow glass microspheres can enhance roof coatings into energy-saving solutions

By increasing the Solar Reflective Index (SRI) and reducing thermal conductivity, Omyasphere lightweight fillers help minimize heat accumulation on and beneath coated surfaces. This innovative technology enhances thermal insulation, improves indoor comfort, and delivers significant cooling energy savings - making it an ideal choice for sustainable building performance and cool roof applications.

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Speaker - David Gonzalez

David Gonzalez joined Omya Specialty Materials as Global Application Manager Lightweight Fillers, in 2020. In January 2026, he has been appointed Global Director of Strategy & Portfolio Lightweight Fillers, developing the global strategy across different Omya market segments and regions.

 

David has 25 years of well‑proven and diversified experience in R&D, Product Development, and Technical Service in the Construction, Paints & Coatings, and Adhesives & Sealants industries.

 

His areas of specialization include cement chemistry, concrete rheology, mechanisms of chemical admixtures, rheology‑modifying additives for paints and coatings, and novel materials such as colloidal silica and microspheres.

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