We are building a new home... There is too much moisture in the house.. on my windows, on my door and the wood is starting to rot.. does anyone know how I can reduce the moisture?

It takes time for wood to rot so I'm wondering when the house was completed. If it is not complete you can expect excess moisture from drywalling, painting and lumber moisture. All of these will eventually go away but you can speed the process by closing up the house and using a dehumidifier.