Moisture Problems

[Pat74140]

Please help. I have a new build timber frame with solid pu insulation between the rafters and 9mm osb board to outside face. My problem is that I am having moisture dripping from the rafter feet ...I have no vapour barrier i.e plastic sheet ..... but my ceilings are all now finished any ideas ? Do not want to put plastic up and re plaster board etc ...Thanks

 

[Alastairreid]

What ventilation do you have at eave/ridge level?

 

[Pat74140]

What ventilation do you have at eave/ridge level?

Hi , The roof is vented but the problem is the condensation is dripping between the underside of the osb and top of the kingspan insulation , I have a solid fill i.e no space between top of insulation and osb board..!
Thanks