condensation

Please provide me with a bit more information. You can just email direct to me if you wish -- probably easier for both of us. My email is tmiller@classicroof.com Where is the condensation occuring -- where and what evidence of it are you seeing? I assume that there is no sort of vented airspace at all? How thick is the rigid insulation? Are the purlins only running horizontally? Do they create an unvented horizontal airspace between them? Is there a vapor (air) barrier between the insulation and the T & G? How long has this roof system existed? Have their been problems in the past? If not, has anything else been changed this year that has made the home more airtight? Are there any sources of undue moisture inside the home? Can you email me a picture showing me the roof profile? How can you be certain this is condensation and not a roof leak? (I agree with you but I just want your thoughts on it.) Thanks!