Condensation in garage driving me mad!

[Mark34bn]

We have a single block walled garage which I'm trying to smarten up, paint etc. It has a slightly angled corrugated asbestos roof which I've covered with corrugated plastic sheets to seal. The problem I'm having is there is condensation forming on the inside of the roof which runs back and down the back wall of the garage.
Could this be cured by fitting some air bricks to improve ventilation ? There are some gaps around the garage door and even with the side door left open overnight, the condensation still forms.
Please help it's driving me mad!

[Mark34bn]

Originally I thought the roof was leaking, I'd go in in the morning and there would be water droplets covering the inside of the roof. Didn't want the hassle of trying to dispose of the asbestos roof so I covered the whole thing with corrugated plastic sheets to seal it.
I guessed some kind of false ceiling / insulation was called for and it was my plan to do this when I get time, and also batten the walls and get some gyproc sheets in there eventually.

[Mark34bn]

I'll happily put some vents in if it means reduced condensation. There isn't any heating in there as the garage is the other side of the patio, I'd have extended the central heating system into there if I could!
I still had the problem despite leaving the side door open, but I guess that didn't count as through flow ventilation.

[Mark34bn]

Alucidnation said:

One would hope after eight fking years, the OP has sorted it now.

Blimey! Yes this was sorted years ago. Water was seeping through the back wall so we had it rebuilt. Adequate ventilation was installed so condensation is no longer an issue.