No ventilation source, no evidence of moisture issues, consider installing ventilation: The attic area has no ventilation source but there is no evidence of moisture issues that occur in attics lacking ventilation. Due to the nature of older construction, there may be enough small openings in the attic area to provide minimal ventilation. Consider installing more attic ventilation for energy conservation.
Whole house fan installed to lower interior and attic temperatures during summer months: The home includes a whole house fan designed to lower interior and attic temperatures during summer months. Whole house fans require intake air (usually open windows) and an exhaust vent in the attic to ensure proper operation. The fan switch should be located in an area outside of normal reach to ensure that it is not accidentally activated. The fan switch should not be activated when windows are closed nor should the switch employ an “automatic on” feature, which would allow the house to become depressurized, causing combustion by-products from heating appliances (e.g., water heater, fireplace, etc.) to enter the home. During winter months, place insulation over the fan inside the attic to reduce heat loss. It is also important to install carbon monoxide detectors in homes with whole house fans and fossil fuel appliances or fireplaces.
Windows provide attic ventilation but need to be manually operated to provide attic ventilation, consider installing permanent attic vents: Windows provide attic ventilation. Such windows need to be manually operated to provide adequate attic ventilation. Consider installing permanent attic vents, such as soffit or gable vents, which remain open and protect against the entry of rain and snow.
High rise residential dwellings typically have passive venting systems to provide source of fresh air/allow discharge of stale air and odors: High rise residential dwellings typically have passive venting systems to provide a source of fresh air and to allow the discharge of stale air and odors. This is needed for a healthy air exchange within the living space. Rooms such as bathrooms and kitchen need operative venting for this to be effective. Be sure the venting grills are present, open, and clean of lint and debris.