These fans may be controlled by a switch or a thermostat which detects heat build up in the attic space and automatically exhausts the attic space.
Attic ventilation system standards.
Owens corning recommends a balanced ventilation system based on the u s.
See the benefits of attic ventilation a new roof is more than just shingles.
Code requirements the international building code 2012 edition ibc 2012 requires enclosed attics and enclosed rafter spaces formed.
The roofing industry also has practical guide lines for attic ventilation.
Intake vents located at the lowest part of the roof under the eaves allow cool.
Ing and installing steep slope roof systems.
Whole house fans powered attic fans.
Attic venting serves an important purpose and is key to a well performing roof system.
Fans and vents may be installed on the roof system that will draw the air out of the attic space and exhaust it to the exterior.
Typically building codes include minimum requirements applicable to attic ventilation.
Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.