Ventilation of attic spaces is required by most building codes as well as by roofing material manufacturers and the national roofing contractors association nrca.
Circulate air in attic.
Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.
Ventilation can be accomplished using various products and techniques.
You can also use turbine vents.
Attic ventilation requires a vast amonut of air moving through an attic space.
You can use powered attic fans that attach to thermostats.
The attic vent will also help improve circulation in the attic.
A sign of roof leaks from ice damming or other causes.
Before we explore how to ventilate an attic space it is prudent to understand how much ventilation is needed.
Air flows in through the soffit vents and out through the roof vents.
Installation of a ridge vent is best left to the professionals but you can also install a gable vent in your attic by cutting a frame according to the manufacturer s directions and mounting the vent with the brackets provided.
Most building codes require a ratio of 1 150 ventilation space to attic floor space.
Begin by making sure your existing system works photos 1 and 3 plugging major air leaks into the attic photo 2 and correcting any other of the common causes of poor attic venting.
Hot air exhaust vents located at the peak of the roof allow hot air to escape.
For the best results place roof ventilation near the roof s peak and soffit vents in the eaves.
Don t be fooled by the claims.
Solar fans are a joke.
Chicken farmers use massive fans in the summer.
If you have either ice dams or moisture buildup improve your attic ventilation.
Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic.