Roof vents and power roof vents are made to work in conjunction with vented soffits so that outside air will replace superheated attic air during hot summer days.
Roof power vent good idea.
The money would be better spent addressing problems the roof vent was meant to cure.
Of course you try to make the attic scuttle hole use air tight trim on your ceiling cans but it would be foolish to ignore the benefits of a reasonably powered attic fan working in connection with adequate soffit venting.
The majority of roofing experts agree that ridge vents are the most effective and cost effective roof vents available.
While a simple vent is sometimes used to allow for the passive flow of air it s also possible to add a powered attic fan commonly called an attic power ventilator.
Hot air exhaust vents located at the peak of the roof allow hot air to escape.
Slits in the product allow for air to flow into the attic.
As the air leaves it creates negative pressure behind it sucking in cool air from below into the soffits and creating a self repeating ventilation process.
Even if your roof already has ridge vents and plenty of ventilation built in it s a good idea to install gable fans or roof fans to help blow hot humid air out of the attic.
Take for example ridge vents.
Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic.
Organizations such as the nrca recommend against this roof vent style in cold climates because it can promote ice dams.
It can quickly remove a larger volume of hot and or humid air from your attic when compared to static ventilation.
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.
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.
A drip edge vent is made of a corrosive resistant material that sticks out about three inches back from the roof edge and then bends downward over them.
In either case there needs to be a balance between intake and exhaust as well as adequate attic insulation.
First off a roof vent is going to depressurize the attic.
While hardly anybody agrees on the best roof ventilation system everybody agrees some roof vents do hardly any good at all.
The master flow erv5 power roof vent is the master flow erv5 power roof vent is a great overall investment in attic ventilation.