In building concrete parking decks should we call for close tolerances on degree of planeness to prevent puddles? We want to do all we can to keep salt water from standing on the floors.
Parking decks should be sloped to drains so that water runs off quickly. The slope should preferably be 1/4 inch per foot and never less than 1/8 inch per foot. Flat, level parking decks should not be built Adequate provision should, of course, be made to carry off the water in a drainage system. The drains should be set 1 inch below the elevation of the finished floor so that the floor finishers have no trouble working down to them.