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Dennis Anderson

Dennis Anderson NFRC headshot

Dennis Anderson is senior manager of programs for the National Fenestration Rating Council. He can be reached at

NFRC Moves to a More Practical Condensation Rating

The newly approved Condensation Index (CI) allows the consumer, manufacturer, building owner or architect to find the fenestration product that best reduces the potential for condensation based on where that window, door or skylight will be in the U.S. or Canada.