Should I Turn Off My Attic Fan In The Winter. Also you place it on the roof-top or gable-mounted. The warm air from exhaust fans doing laundry and even washing dishes rises up into the attic.

Should I turn off my attic power fan and close the vents during winter. In the winter the vents will cause the attic to become cold but this should not damage your home or increase the energy use of your home so covering the roof vents is. Therefore using attic fans helps to eliminate humidity which in effect extends the life of your roof.
Vapor barriers help but usually have gaps.
Unfortunately attic vents on their own do not complete the job as well. Attic fans come with different models. Simpler fan models generally have on-off switches or dials that allow you to run the fan for a specified amount of time such as 15 minutes. Water vapor from your humidifier cooking and showers tends to seep up into your attic.
