Attic ventilation is one of the most misunderstood areas in a home. Ventilation is important for any property because it maintains air flow; keeping indoor atmospheres fresh and clear of airborne pollutants, moisture, and more. Proper air circulation in a home promotes a healthier and more pleasing indoor atmosphere. Improving your attic’s ventilation can provide these benefits and support a healthy living environment. Continue reading to learn about a few common myths associated with attic ventilation, as well as, some pertinent facts all homeowners should know.
One of the most common misunderstandings in regards to ventilating a home is that the more attic ventilation there is, the better. This couldn’t be further from the truth. This is because it is crucial to match the proper attic ventilation to your corresponding square footage. Too much ventilation is not necessary and can even be a potential fire hazard if a blowout occurs; while too little ventilation can lead to decreased energy efficiency and moisture problems.
The general rule of thumb is a 1 to 300 ratio, meaning that you need one square foot of attic ventilation for every 300 square feet of ceiling space. This is a very complex and detailed assessment that should be performed by a licensed HVAC contractor. They retain the proper tools, training, equipment, and resources to determine your exact attic ventilation needs.
Another misunderstanding about attic ventilation is that its main purpose is to increase a property’s energy efficiency. The truth is, a roof’s shingle color, sun exposure, and insulation are much higher contributing factors to a home’s energy efficiency than a few roof vents. There are several other easy and cost-effective ways to make your home more energy efficient rather than installing a bunch of roof vents. Again, talk to a professional about this for a customized assessment.
Furthermore on roof vents, many believe they are only good for warm weather and actually lose warm air in the wintertime. This is simply not true. Roof vents are important parts of a home’s security, in various other aspects than just insulation and energy efficiency. In most cases, it is poor insulation that causes warm conditioned air to escape from inside a home. So don’t worry about your heat rising and escaping through the attic. It’s not a likely scenario.