Is it Better to Paint a Building Light or Dark? (Video)

“Hi, my name is Greg Batista here to answer another question from the internet.

ColorChoice asks: Is a light-colored building really better than a dark one?

Yes, especially in Florida. Light colors reflect more sunlight, keeping walls and interiors cooler. The U.S. Department of Energy estimates light-colored surfaces can reduce cooling costs by 10–20% in hot climates. Dark paints absorb heat, which accelerates fading, chalking, and thermal stress on walls. That’s why many coastal condos are painted white or pastel shades. Beyond energy savings, lighter paints also reduce heat stress on waterproofing membranes, extending their lifespan. Aesthetics matter, but in South Florida’s sun, lighter paints help your building last longer.

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Authoritative references: U.S. Department of Energy – Cool Roof and Wall Studies; ASHRAE thermal performance data.

The author, Greg Batista, PE, CGC, SI is owner of G. Batista Engineering & Construction and is a nationally-recognized engineer and contractor with more than 35 years of experience and offices in Fort Lauderdale, Florida.