I have been doing a lot of remodeling on my house hopeing to sell it when ever the market comes back but the question I have is I have been stoping every leak I can find in this house calking doors and windows putting in spray foam around water pipes comeing in the house and arround electric boxes and since I have done this now I get lots of condensation on the windows threw the whole house after the wife takes he rmorning bath. The windows are still single pain which I will be changing later on to dull pain also there is no exhaust fan in the bath room will a fan in there stop the problem.? Also when ever we cook we need to run the fan over the stove or the windows in there get condensation. Never had this problem before I started making the house air tight . Any help out there 