Attic Ventilation

Answer 1

In home attic ventilation is very important for several reasons. Excess heat that builds up in the summer can cause energy costs to rise as well as excess cool temperatures in the winter. With attic ventilation, the air can be equalized to better reduce energy costs. Attics can reach a temperature of 140 to 170 degrees in the summer time and can make energy costs soar. If you have poor ceiling insulation in your home, then the heat movement can account for more than 40 percent of the cooling costs. There are many types of attic ventilation. Some of them include wind assisted ventilators, power ventilators or gravity ventilators. Whatever method is used, it is to provide ventilation for proper moisture and temperature. Natural ventilation is the most energy efficient and most common method used. The wind in the home creates a high and low pressure and the ventilation occurs when the air is heated. Wind pressure ventilation has to have a small vent area to get the same results. The low and high pressure changes with wind direction makes it difficult to locate outlets for the ventilation to take place no matter what the wind direction. Natural ventilation is caused when a chimney is present. It is the most economical ventilation. Depending on the opening size determines the quantity of ventilation as well as the temperature and wind. Power ventilation is done one of two ways. Homes that are not air conditioned are controlled by attic fans. These are typically found in the older model homes. They can be very energy sufficient when lowering energy costs. Power ventilation is when the air from the outside is pulled in through the windows and released through the attic; however, the power ventilators can provide ventilation even when there is no wind present. They can also provide temperature control when used simultaneously with a thermostat. Power ventilators are also a great way to bring fresh outside air into the home.