If you see dampness or frost you need better roof ventilation and some attic vents.
How to test powered attic ventilator.
When connected to the thermostat they can turn on and off automatically depending on the current household temperature and the specific settings.
Air flows in through the soffit vents and out through the roof vents.
Attic power ventilators are mounted to the roof of the home and are connected electronically to a power source and in most cases the home s thermostat.
These fans draw air from the attic and send.
For the best results place roof ventilation near the roof s peak and soffit vents in the eaves.
A significant amount of that cooling is likely to come from conditioned air being sucked up from the house below.
That is i said that when you run a power attic ventilator in a typical house yes it will cool the attic down.
A fan that won t run is often caused by a failed motor or a bad thermostat.
Once done test that the motor still works by plugging the motor into an extension cord that is connected to an outlet.
In my original article i focused on makeup air.
Broan surface mount solar powered attic ventilator the broan is an excellent option for anyone looking for an easy install high performance attic fan.
This model draws its energy.
How to test an attic fan motor and thermostat.
Moreover if you have asphalt shingles on the roof attic.
One reason power attic ventilators don t help.
To avoid rotting wood clumping insulation and mold your attic needs to be properly ventilated.
If the fan turns on the motor is still good.
How to check attic ventilation.
Grab a flashlight and inspect your attic during the winter.