Attic Air Ridge Vent

While this provides an outlet for air flow it does not provide an inlet to complete the convection cycle needed for proper ventilation.

Attic air ridge vent.

In hot climates a power vent fan is often mounted behind a gable vent or cut into the roof near the peak to assist this process by forcibly expelling additional hot air from the. Figure courtesy of air vent inc. Ridge vent in black with nails sold in carton of 10 4 ft. A shirt 30 minutes later and ventilation through the roof was completed.

You ll be able to move air throughout the attic without the use of fans or turbines when enough space is given to this vent design. List of the cons of roof ridge vents. Ridge vents provide constant airflow along the entire undersideof the roof to help remove heat and moisture. Since there isn t any provision for the intake of air the ridge vent is basically ineffective.

Soffit vents when paired with ridge vents provide complete ventilation for your whole roof surface. Federal housing authority recommends a minimum of at least 1 square foot of attic ventilation evenly split between intake and exhaust for every 300 square feet of attic floor space. Ridge vents do not always provide the proper ventilation in some homes. Hot air exhaust vents located at the peak of the roof allow hot air to escape.

Vents in the soffit beneath the eaves at the bottom of the attic draw in cool outside air while gable or ridge vents at the peak of the attic allow heated air to exit. Attic air was able to complete the job and clean up all dust and insulation that fell through the attic and vent the fan through the roof in a short amount of time. Without baffles blinders that prevent outside air from crossing over the vent a ridge vent may create almost no ventilation at all. Attic and roof temperatures can soar as high as 160 degrees in the summer.

We see many older homes with no attic ventilation and some that have recently had ridge vents installed. This over heated air can damage roof structures and shingles as well as increase cooling costs in the home. Taking advantage of this natural process referred to as passive ventilation is the most common way to vent an attic. The effect of ridge vents for the roof depends upon the energy efficient nature of the structure.

Figure 5 ridge vent vs. The majority of roofing experts agree that ridge vents are the most effective and cost effective roof vents available. Gable vents may circulate air through only a small percentage of your attic. Proper attic ventilation consists of a balance between air intake at your eaves soffits or fascias and air exhaust at or near your roof ridge.