Shed condensation advice?

[angelboy]

I have a section of roof on a new shed that is single skinned PVC (to act as a roof light). The roof itself, from inside out, is 11mm OSB, 100mm rockwell, breather membrane, 3mm Oduline.

I've just bought some greenhouse acrylic today in the hope that if I fix and seal it towards the internal OSB (ceiling) then I'll get no condensation on the inside of the clear PVC roofing sheet anymore?

Would this work or do I need to do anything else?

 

[graduate_owner]

Twin wall polycarbonate would be flat, so easier to seal against the osb.and give better insulation.

K