Ventilation is vital to maintaining comfort levels of your home. There are several areas that are easy to overlook when creating ideal ventilation. Often, your attic, roof, and crawl spaces determine exactly how much ventilation occurs within your home.
To control ventilation within your attic, it is vital to invest in attic fans. These fans will allow hot air that naturally rises to the attic to escape from your home. Soffit vents will also allow the hot air within your home to escape through your roof. Exactly how many vents and what specific style you may need depends on your home, but these vents are a good place to start. The exact opposite of attics and roofs, crawl spaces should be closed-off as much as possible. Ventilation into your crawl space allows for humidity to gather and causes more bad than good through mold growth.
Ventilation and shading can help control indoor temperatures. Ventilation also helps remove or dilute indoor airborne pollutants coming from indoor sources. This reduces the level of contaminants and improves indoor air quality (IAQ). Carefully evaluate using ventilation to reduce indoor air pollutants where there may be outdoor sources of pollutants, such as smoke or refuse, nearby.