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JLC • NEW ENGLAND EDITION • JUNE 1995 JLC • NEW ENGLAND EDITION • JUNE 1995/0 PERFECT HARDWOOD FLOORS Cracking and cupping are common problems with hardwood floors. The main culprit is moisture, according to Howard Brickman, a flooring contractor from Norwell, Mass., and former director of training for the National Oak Flooring Manufacturers Association. He recommends that contractors install flooring at about 7.5% moisture content, the midpoint between seasonal high and low moisture content for most of the country. If moisture content is too high, unwrap the bundles to let the wood dry out. "Be careful of the weather," Brickman cautioned. "Most flooring is shipped at between 6% and 8% moisture content and will probably take on