New Built Shed - Condensation on roof + Wet Walls

[abzman]

I built a concrete block shed over summer with a corrugated perspex roof.

The roof doesn't leak as I checked during a pretty heavy downpour.

I've had the outside walls harled.

However I've noticed over the past few days with the wet weather the inside blocks of the shed are all wet. and the roof is full of condensation.

1. Should i have put in a vent hole?
2. Should I paint the inside of the shed with a sealant?

any other ideas to stop this damp/wet would be helpful.

Regards,

Abzman

 

[big-all]

its purely condensation

warm moist air condensing on the coldest surface they come to

not much you can do ventilation will help a little bit but untill you introduce a thermal layer to stop it condensing on the roof but then it will condense on the walls as being the next coldest surface