A sign of roof leaks from ice damming or other causes.
Circulate air in attic.
You can use powered attic fans that attach to thermostats.
Air flows in through the soffit vents and out through the roof vents.
You can also use turbine vents.
Chicken farmers use massive fans in the summer.
Ventilation of attic spaces is required by most building codes as well as by roofing material manufacturers and the national roofing contractors association nrca.
Grab a flashlight and inspect your attic during the winter.
Before we explore how to ventilate an attic space it is prudent to understand how much ventilation is needed.
Solar fans are a joke.
Hot air exhaust vents located at the peak of the roof allow hot air to escape.
Vents come in various styles.
Ventilation can be accomplished using various products and techniques.
If you see dampness or frost you need better roof ventilation and some attic vents.
If you have either ice dams or moisture buildup improve your attic ventilation.
The attic vent will also help improve circulation in the attic.
Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.
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.
Most building codes require a ratio of 1 150 ventilation space to attic floor space.
Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic.
Don t be fooled by the claims.