Show storage buildings above ground are now favored most new common storage buildings for apples are being built above ground with insulated walls and ceilings the floor Is usually left as earth to keep fruit from shriveling in storage slatted floor door racks of barrels are ard often used over the earth intake openings are cut at intervals of 10 to 12 feet around the building lust just above the floor level these openings are usually IS 18 by 20 inches or larger to pe permit amit easy intake of air without too much loss from fr friction le tion many in the past were built with intake openings too small to let in the cool air quickly quick ly at fayo favorable rable times for ventilation and cooling the total area of the intake openings Is usually in proportion to one square foot of intake sp space aceto to cubic feet of storage volume stacks tor for outlets are built up through the roof these are usually 3 by 4 feet or larger to permit tree free movement of air they are placed about 20 feet apart the length of the building the outlets are usually designed to figure at least one square foot of area to each 1200 cubic feet of storage volume it Is a good fault to make them a little oversize |