Quote:The poly tunnel is air tight dabs. Vapour membrane on floor sealed to poly tunnel flaps....but when the"outside" is rocking 85% humidity it is gonna geddin eventually.lolzio !
There are masseeeeve fans built into the walls they are so powerful I once locked myself in by turning them on at the control unit outside and making the mistake of going inside and the door suctioned closed. â.â. Had to pry me way back out. Of course no use without power... I could try candles. (θâ¿Î¸)
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Sorry I have no useful ideas Daps.
 Doesn't sound good at all mate.Â
EDIT:Â Could you use some substance to help draw/soak up the humidity in the poly tunnel ? Prolly need a fan to circulate the air though.

