Water pooling on window sills

[night_day]

So when we first moved into our new house 6 years ago we had this problem, but haven't in the last few years. All of a sudden this year, our house is constantly pooling water in all the window sills. We turned OFF the central humidifier, I have no idea what the problem is, the house shouldn't be "sweating" anymore right? Anyone have any ideas?

[jonnyb]

Turning off the humidifier was the first step but now I'd head to Home Depot and pick up a hygrometer to monitor the humidity levels in your house.

Check this out.

http://www.energystar.gov/index.cfm?c=home_solutions.hm_improvement_moldmild ew

[mason]

Are your kitchen and bathroom fans sized correctly? a lot of humidity can stay in the house if the exhaust fans don't do their job.
When you say a new home, do you mean new construction? New homes generally are sealed pretty tight and if you don't have one, an HRV might help.

[Maymybonneliveforever]

At present we have the original 27 year old windows in a two story house and they are sweating somewhat with a indoor relative humidity of around 46%. There is no pooling of water effect only slight sweating. I don't have the humidifier on and am in the process of trying to seal up our house somewhat better. We will have our windows replaced in about 4 weeks and am curious as to how that will change the window sweating effect. I've also noticed that the indoor relative humidity went from 49% to 46% when the outdoor tempertue went down 7 celcius.