The purpose of The Corwin Smart Attic Ventilation System^TM:   

• Prevents  hot air during the warm months from getting into the attic and then into the living spaces of the house (the attic should get no hotter than the outside air)   

• Prevents mold and mildew from forming in the attic by keeping the air flowing in the attic without fans or blowers

• Prevents  heat loss through the ceiling into the attic from warming the underside of the roof deck causing those unwanted hot spots and roof ice

• Prevents  freezing and thawing of rain and snow during the cold months stopping ice dams and possible warping of the roof deck and leaks

• Creates  a tempering of attic air, buffering the cold outside air from the heated indoor air during those colder months

      . Also, the area above and below SKYLIGHTS, DORMERS, CHIMNEYS, VALLEYS, HIP ROOFS 

        CAN NOW BE VENTILATED PROPERLY WITH THE CORWIN SMART RAFTER VENT^TM

The Corwin Smart Attic Ventilation System^TM         How Does It  WORK      CLICK HERE

  The Corwin Smart Attic Ventilation System^TM                   PAYS FOR ITSELF      CLICK HERE

CLICK HERE    A GREENBUILD PRODUCT

LABORATORY TESTED ( http://www.corwinsmartventilationsystem.com/doc/CSVS_Presentation_Inspectors_Contractors.pdf)  

ENGINEER APPROVED