posted 6 years ago
If his design is such that the tops of the bales can be left open / porous covering and evaporation can occur through normal roof / gable vents, will be adequate,
Any method that allows steady slow transpiration of air through the straw column.
The worst would be tarpaper laid directly against / sandwiched between steel and straw.
The straw would be protected from the condensate, but would rot from dewpoint condensation from the inside.
Nothing is foolproof to a sufficiently patient fool!
I hate people who use big words just to make themselves look perspicacious.