[header] How to deal with damp in your home [title] Use the right paints and sealants. [step] Use a water-based paint system as far as possible to ensure good breath-ability and for preventing vapor pressure build up. For the window frames and glass joints, use a good quality sealant. 
[substeps] Use a flexible silicone sealant in your kitchen and bathrooms, too, to seal the edges of your back-splashes and showers/tubs. [title] Check if there are cracks around the windows or any wall penetrations.