Oh dear! Been there, done that and bought the t shirt I'm afraid although it wasn't with the annexe but the whole damn thing!
We inherited an excellent, (but so-o-o-o heavy), Telt Larsen awning complete with very flower power curtains with one a secondhand caravan years ago. Now it was obviously quite old, (pattern on curtains led us to believe it was born in the seventies), but still clean and tidy and for about six years we had no damp/leaky problems at all. Until...... probably the wettest holiday we have ever had spent on a dreadful site near Brixham, Devon where the whole place became a mass of red clay type mud from day one and never recovered!
THIS was when the awning decided to start leaking or should that be 'pouring'? We spent the whole holiday with towels and anything else we could find to soak it up over ever roof pole as this is where the water was just literally pouring in. Now at the time with youngish kids, we weren't able to afford the luxury of a new awning so when we returned Fabsil came into it's own - and how! Hubby, put three hooks on the side wall of our garage and we erected the whole thing against that and then he covered every single bit of it in a thorough coating of the stuff and left it to dry before packing it away.
Next year's annual hols arrived with some fear and trepidation all waiting to see if 'Daddy's handiwork' had done the trick and joy of joys -it had! BUT to be on the safe side, we did continue to re-proof it with Fabsil every couple of years until 2001 when we decided enough was enough and could actually run to treating ourselves to a new lightweight Dorema awning and haven't looked back since! In fact just purchased our second, only because new van is larger. Anyone for a Size 7 please see the For Sale board!
As good as the old Telt Larsen awning was though, it was bound to let in water eventually simply because it wasn't made of the modern water resistant materials of today and even though we were so careful NEVER to pack it away while it was still even remotely damp, it did eventually start it's leaky phase.
Maybe your annexe, (and possibly your awning), are a little bit more 'aged' than you were led to believe which might be that they could do with a refroofing treatment? If that's the case, then you should see a vast improvement in it afterwards.
Of course, there is one more possibility. If your awning and annexe are newish, it could well be a condensation problem so a touch of ventilation should sort that one out.
Keep dry! 4 days to hols and counting....
------------- Hippychick
Life
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