How to Protect and Maintain Terrazzo Floors During a Northeast Winter

Winter Terrazzo Maintenance: Protecting Your Floors from Salt and Slush

Terrazzo floors are renowned for their durability and elegant appearance, but winter in the Northeast can be brutal on them. Snow, slush, de-icing chemicals, and grit tracked in from outdoors can scratch, dull, or permanently etch the surface. Fortunately, with the right winter strategy, you can keep terrazzo looking as stunning in February as it does in June.

1. Choose the Right De-Icer

Traditional rock salt (sodium chloride) melts ice but causes corrosion, white residue, and surface pitting. Instead, use calcium chloride or magnesium chloride, which are less abrasive and safer for terrazzo. These alternatives work effectively at lower temperatures and minimize the risk of etching the binder or aggregate. Avoid mixed or unknown salts, which can stain the floor’s finish.

2. Trap the Salt at the Door

Most terrazzo damage starts at the entryway. Install long, high-quality walk-off mats—ideally 10–15 feet—to capture salt and moisture before they reach the floor. Vacuum and launder mats frequently; once they’re saturated, they stop protecting.

3. Use Neutral Cleaners Daily

During winter months, increase the cleaning frequency. Wet-mop daily with a neutral-pH terrazzo cleaner and warm (not hot) water. Avoid acidic or alkaline products, which can break down the finish. Always rinse thoroughly and dry the surface to prevent dulling films.

4. Maintain the Sealer and Finish

A fresh sealer provides critical protection against salt and stains. Schedule an interim polish or reseal in high-traffic areas mid-season for best results.

With these proactive steps, facility managers can preserve terrazzo’s luster and longevity—even through harsh Northeast winters.