I've just moved house last week and today have noticed a drip in my dining room. What's odd is that it isn't raining - in fact, today is the first warm day of the year.
The "water" is a brown colour, but doesn't seem to have an odor. Moreover, I'm also noticing drips from the roof line on the outside of this part of the house.
It's a single story extension without plumbing, so I don't think it's a leaky pipe. The gutters are bone dry and there's no standing water on the (flat, leaded) roof.
What could be causing this? And how would I solve it?