Without proper ventilation the extra moisture in the heated air will cause wood rot mildew mold and exterior problems like ice dams.
Winterize roof turbines.
During winter months warm air rises into your attic.
A roof fall is very dangerous.
Why do you need roof turbines.
Continuous soffit vent and a ridge vent beats a turbine vent any day.
Cuts turbine winter heat loss by 80.
If the air temperature in your attic space is very warm while it is cold outdoors i maintain that you might have inadequate insulation and or you are up in your attic on a bright sunny day where the radiant energy of the sun is heating the attic space.
Roof turbines remove attic moisture and reduce the risk of costly roof damage.
During summer months turbines eliminate hot.
But suck warmth from your rooms in winter.
Open in summer 70 f close in winter 40 f powered by temperature needs no batteries.
And in fact just so you know those spinning roof vents are probably not the best way to vent your roof.
Never cover turbine with a bag.
Roof turbines are great in summer.
There are many types of vents that you may have on your roof including turbine soffit rafter and metal pot vents but you should not cover any of these roof vents during the winter.
It is also a myth that turbine vents remove warm air from attic spaces in winter months.
All of these vents serve the purpose of creating air circulation which is vital to keep your attic and roof from being damaged in the winter.
By covering the turbine in winter this effect is lost and moisture can quickly build up in the attic causing structural damage and increasing the chances of mold and mildew.