b'That said, heated walls do carry certain downsides. First, when interior cladding is installed over ungalvanized steel trusses (as was typically done until recently), condensation inside the envelope can cause structure-threatening corrosion.The issue of rust is a big one, says Kleisinger. Because theres warm air running through and because youre not seeing condensation on the ceiling aboveIf you put bad potatoes into a the pile, people thought it was all dry. But then a couple of guys put their forkliftbuilding or you dont cool them forks through the wall by accident and all they could see was rust. The condensa-tion was hidden right inside the envelope.right, it doesnt matter how good In response, todays companies are exclusively installing galvanized steel. Me- your technology is. But, in normal ridian Manufacturing, which is currently installing envelopes into its arch-walledconditions, heated walls certainly buildings for the first time, is taking it a step further. To counter rusting from condensation and to manage cost, the air envelope will be an open system thatmaximize your chances of keeping only covers about two thirds of the way up each wall.spuds at their best, longer.The second challenge to heated walls is the upfront investment: expect a 10 to 15 per cent uptick in cost on a conventional steel frame building, and an increaseCHAD KLEISINGERof approximately 5 per cent in Meridians arch-wall design.Were not completing the whole arch because we get the same benefits at significantly less cost, and we can recycle the heated air right into the storage, which is much more efficient, says Kleisinger. Your best choice for high-quality potato and root crop machineryINNOVATIVEECONOMICALRELIABLEENJOYABLEFALL 2019 SPUDSMART.COM 29'