All single-skin shelters are subject to condensation in certain atmospheric conditions. Condensation is made worse by a steaming kettle, drinking fluids or simply breathing. The use of an extra skin (overwrap or winter skin) to create an air gap between the two skins will greatly help to reduce the condensation in most conditions. A ground- sheet will also help.
Shelters should always be stored dry. Wet storage can lead to deterioration of the waterproof membrane and taped seams.