I put water proofing on it yesterday day , made no difference.im going do the insulation over the battens.cheers for all advice 

Thanks for your help I purchased a waterproof paint on if it doesn’t work I’ll add the sarking over the battens, probably worried about nothing cheer ...

Thanks for your help do think putting a waterproof membrane on the battens would stop it it’s the last 3 note using Bunnings acoustic panels, not desi ...

Hi Eric mum thinking a waterproof membrane on the aluminium battens might work to stop the condensation The battens took about 1 hour to dry I didn’t ...

Only problem with that is I have to glue the cladding and screw