Attic Ventilation Florida

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.

Attic ventilation florida.

Why insulation for the attic is a must have in fl homes posted by wattson on apr 18 2017 insulation in your walls floors and ceilings helps to keep your home cool in the summer and warm in the winter. It can do both. 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. I suspect the thinking was the more the better.

Attic spaces designed by a florida licensed engineer or registered architect to eliminate the attic venting. I ve read where this disrupts the natural flow up from the soffits due to old turbines and new ridge vent. Intake vents located at the lowest part of the roof under the eaves allow cool. Throughout the balance of this digest the terms attic and roof will and can be used interchangeably.

The typical method for ventilating the attic on an average home is soffit and ridge vent. See the benefits of attic ventilation a new roof is more than just shingles. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. 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.

In the winter warm moist air seeps into the attic from the living space below. As the florida study found attic ventilation only made about a 10 degree difference to attic temperature maximum. Insulation at least r 38 or more is there for heating and. Best ventilation is open soffit venting to a open vented ridge vent.

Ridge vent must me installed per the manufactures instructions. That keeps your attic dry and reduces ice dams. Attic ventilation does not cool your attic substantially nor does attic temperature really matter if the house is fixed from a home performance standpoint. 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.

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.