I have ranch house that has ridge vent soffit vents and two gables.
Attic ridge vent fan.
Attic fans can also make a lot of noise.
Effective attic ventilation systems reduce damaging heat and moisture in your attic promote energy efficiency by helping to reduce the load on your air conditioner in the summer and also reduce the risk of ice dam formation on your roof.
They are typically easier to install and won t detract from the appearance of your roof.
Unlike ridge vents attic fans use electricity and need regular maintenance to keep working properly.
When installed as part of a properly balanced when installed as part of a properly balanced attic ventilation system gaf cobra exhaust vent is a shingle over exhaust vent installed at the roof ridge that helps exhaust excess heat and moisture from your attic.
Ridge vents are a passive system simply allowing hot air to rise up through them rather than pushing it out as a fan does.
I ve read that adding a vent fan to the gable with ridge vent is bad b c it may reverse the natural flow of hot air plus draw in rain.
Vents that run along the roof ridge are an alternative to those that exit through the roof decking or gables and if the ridge is long enough they may be the only roof vents.
I added a attic fan 1500cfm onto the gable but i have the airflow coming in from the outside instead of pushing air out.
An attic fan is an active system that actually forces air out.
They can quickly remove a larger volume of hot and or humid air from your attic compared to static ventilation which helps save money on your heating and cooling.