Attic Ventilation Florida

As the florida study found attic ventilation only made about a 10 degree difference to attic temperature maximum.

Attic ventilation florida.

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. Intake vents located at the lowest part of the roof under the eaves allow cool. One last thought attic ventilation is not there to get rid of heat it is there to get rid of excess moisture accumulating from the home. Insulation at least r 38 or more is there for heating and.

Best ventilation is open soffit venting to a open vented ridge vent. That keeps your attic dry and reduces ice dams. In the winter warm moist air seeps into the attic from the living space below. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.

I ve read where this disrupts the natural flow up from the soffits due to old turbines and new ridge vent. That cuts cooling costs and prolongs shingle life. I come across many homes that originally had soffit venting and wind turbines at the peak but continuous ridge venting was added later during a re roof. Ridge vent must me installed per the manufactures instructions.

Attic spaces designed by a florida licensed engineer or registered architect to eliminate the attic venting. In cold climates the primary purpose of attic or roof ventilation is to maintain a cold roof temperature to control ice dams created by melting snow and to vent moisture that moves from the conditioned space to the attic ventilation acts to bypass the vapour barrier created by most roof. In the summer good attic ventilation reduces heat buildup. Attic ventilation does not cool your attic substantially nor does attic temperature really matter if the house is fixed from a home performance standpoint.

It can do both. Fbc section 1203 2 newer studies newer ashrae studies have found that the practice of attic ventilation to be detrimental to structures in warm humid climates. I suspect the thinking was the more the better. Throughout the balance of this digest the terms attic and roof will and can be used interchangeably.

Good ventilation allows the heat and moisture to escape. On one hand the national renewable energy laboratory said attic ventilation reduces attic temperature 10 to 25 degrees and slows the transfer of heat into the living space on the other the florida solar energy center university of central florida found that attics with nominal natural ventilation and r 19 ceiling insulation do not.