Condensation in loft.

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I have posted on a couple of threads about how i have insulated my loft.
I was pleased with the result, particularly this morning when the roof was completely white.
I went up there this afternoon, and there was condensation on the roof lining, which was dripping. It was all over the loft.
I have been particularly careful in making sure that i left gaps at the eaves and between the insulation and the loft boards.
Was I always going to get this, and haven't realised. Is there anything I can do to prevent it
thanks in advance for any pointers.
Not sure if this picture helps.

I was pleased with the result, particularly this morning when the roof was completely white.
I went up there this afternoon, and there was condensation on the roof lining, which was dripping. It was all over the loft.
I have been particularly careful in making sure that i left gaps at the eaves and between the insulation and the loft boards.
Was I always going to get this, and haven't realised. Is there anything I can do to prevent it
thanks in advance for any pointers.
Not sure if this picture helps.

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Make sure the roof space is ventilated or even better cross ventilated with gaps, just make sure that the space is ventilated probably more than it needs, the thermal insulation of your roof stops at the top of the joist insulation. You have got what is known as interstitial condensation. I lectured in this and other Construction Science problems for over 30 years. If you have any questions please feel free to ask.
It's only the North facing side that's wet so could be to do with the crazy cold weather recently. That or I spilled some water up there a few days earlier.. could have helped cause it.
.withdrawal, NOT withdrawel ..bear with me, NOT bare with me
.definitely, NOT definately ......separate, NOT seperate
should have, NOT should of .....guaranteed, NOT guarenteed
.withdrawal, NOT withdrawel ..bear with me, NOT bare with me
.definitely, NOT definately ......separate, NOT seperate
should have, NOT should of .....guaranteed, NOT guarenteed
Just googled eaves to ridge ventilation, but it all seems to be fitted when installed. Am I missing something?