Handling and Storing Flooring
UNLOAD IN DRY WEATHER
If possible, unload your hardwood flooring in good weather. Never unload in the rain.
If the atmosphere is damp, cover each truckload of flooring with a tarpaulin until it can be unloaded. Never deliver or store unprotected hardwood rain, sleet, or snow.
Kiln dried flooring should be stored in an enclosed building that is well ventilated with weather proof windows and located in areas where similar fine millwork is stored. The storage area within the building should be clean and dry. Provide good air circulation around stacks of flooring and prevent water drainage into the storage area.
When air in a building is warmer than outside air, moisture may form on the underside of the non-insulated roof and affect flooring. Insulation in the roof or walls can prevent condensation. A covered area can also provide protection. If this is not possible, all top pallets should be covered with polyethylene film or other water proof covering. The building should not be heated, unless temperatures are maintained & controlled humidity provided. Continual dry heat may dry flooring below its manufactured moisture content. Hardwood that is too dry could result in buckled floors when flooring is delivered to the job and immediately installed without proper acclimation.
NOFMA certified oak flooring is manufactured at 6-9% moisture content. It is desirable to maintain this average moisture content as close as possible.
Recently manufactured flooring should be allowed to acclimate to the area. This helps prevent cracks which may result if the flooring is installed while at a higher moisture content, oversized, and later shrinks.
Maintain a -first in -first out- policy. Flooring which is received first should be the first shipped out. Maintain separate flooring stacks, one stack for the old flooring, and one for new flooring. Do not place new flooring on top of the old at any time. Use the oldest flooring before using the new.
REGULARLY CHECK STORAGE AREA?
Be sure there are no roof leaks, wall leaks, or condensation problems. Cracks in concrete block walls can permit rain or melting snow to leak on flooring. A monthly check is preferred.