Did you know that during the hot summer months in Georgia, attic air can easily reach 150 degrees Fahrenheit or more? When excess heat is trapped in your attic, it can have an overall negative affect on your home.
So what's the solution to removing that hot attic air? An attic ventilator!
An "inefficient" attic - one that holds too much heat or moisture - is capable of costing homeowners thousands of dollars due to damages or excessive energy costs. To counteract this inefficiency, proper attic ventilation, along with insulation, is often used to provide another barrier between the home and the outside elements.
Another important consideration for investing in an attic ventilator is extending the life of your roof in your Atlanta home. When an attic becomes too hot, and that hot air is trapped in the attic for an extended amount of time, the heat can begin to break down asphalt shingles. This is one of the main reasons for premature shingle failure. Making matters even worse is that shingle manufacturers will void a warranty if there is not adequate attic insulation.
Atlanta attic ventilation is also helpful in keeping the moisture content equal with the outside environment; meaning condensation and mildew are less likely in a properly ventilated attic. Moisture and mildew can cause health problems, especially if members of the home have allergies to mold and mildew. Not to mention, the costly affect moisture can have on the wood in your attic.
An attic ventilator will make your home more comfortable, substantially lower your energy bills, extend the life of your roof, and increase the life of your A/C units!
In a properly designed vented attic, outdoor air generally enters through lower intake vents such as soffit vents and exits through higher exhaust vents. This airflow can help remove excess attic heat during warm weather and manage moisture that could otherwise affect insulation, roof decking, and other attic materials.
ENERGY STAR emphasizes the importance of keeping soffit ventilation unobstructed and maintaining an appropriate pathway for air to enter low and exit higher in the roof assembly.
Common reasons to have attic ventilation evaluated include:
Ventilation should not be considered in isolation. Insulation helps slow heat transfer into the living area, while air sealing limits unwanted movement of conditioned indoor air into the attic. Properly designed ventilation then helps manage conditions within a vented attic.
ENERGY STAR specifically warns that powered attic fans can pull conditioned air from the home when the attic is poorly air sealed or when intake vents are blocked.
In many vented attic designs, outdoor air enters through soffit or other low intake vents and exits through ridge, roof, or other higher exhaust vents. This creates an airflow path through the attic.
Proper attic ventilation can help remove excess moisture from a vented attic, but ventilation should work together with appropriate air sealing and insulation.
No. Insulation should not block soffit vents. Rafter vents or baffles can maintain an airflow path between the soffit and upper attic ventilation.
No. Insulation reduces heat transfer between spaces, while attic ventilation manages airflow through a vented attic. Air sealing is another separate component that limits uncontrolled air leakage.
Not necessarily. The appropriate ventilation approach depends on the home's roof design, existing passive ventilation, insulation, air sealing, and local building requirements. An attic evaluation can determine whether powered ventilation is appropriate.
If you have the proper amount of insulation and it is installed correctly, you can save on your home energy bill!
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