Issues emerge

Issues emerge amid cool temperatures when warm, soggy air from the home achieves the storage room, is not vented to the outside, and it waits in the cooler and drier loft. As the dew point is arrived at, water vapor held in the hotter air gathers on cool upper room surfaces — building parts, for example, rafters, trusses, and top sheathing. See figure 2. In the winter, amid low temperatures, the dense dampness can show up as ice.