Will cork “swell” with exposure to moisture and cause finish floor coverings to fail?

Cork will not swell, because cork absorbs so little water, it is very dimensionally stable. When exposed to 100% Relative Humidity conditions for 30 days the dimensional change in the grade of materials used to manufacture AcoustiCORK products is less than 3%. In a 6mm thick piece of material this would represent an increase in thickness of less than 1/120 of an inch.    

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