The union filed grievances alleging the employers violated the collective agreement by failing to provide or pay for screws and nails used by drywall applicators.
The employers complained the union bargained in bad faith by remaining silent on the issue during negotiations to alter past practice.
The Board held that the union's silence did not constitute bad faith bargaining, as the employers should have known the terms of the preceding agreement.
Interpreting the new collective agreement, which was silent on the issue unlike its predecessor, the Board found the employers were obligated to supply the materials and could not deduct their cost from piecework rates.
