new poster: never seen condensation do this...

Hi all, Love the site and everyones input. first time home owner, newly married, lacking in time and lots to keep busy with working on our 45ish y/o fibro & cladded home. Lots of experiences already to speak of. blocked drains, subfloor flooding, stormwater to nowhere. Fun for all. I woke thismorning to find marks on my ceiling that thought strange. Our roof is cement tile with sarking, but no insulation in roofspace. Freshly painted ceiling. Of a morning the front of the house is shaded by trees until around 10am and the temp of late has been around 7 degreesC. Windows are usually heavily coated with condensation until late morning. We do have plaster vents in walls to circulate air out through eaves. photo attatched. why would this happen?http://s556.photobucket.com/albums/s...6062009399.jpg
sorry if it ends up in the wrong section.
Thanks in advance.


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