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.

Attic air ridge vent.

Figure 5 ridge vent vs. 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. The majority of roofing experts agree that ridge vents are the most effective and cost effective roof vents available. While this provides an outlet for air flow it does not provide an inlet to complete the convection cycle needed for proper ventilation.

The effect of ridge vents for the roof depends upon the energy efficient nature of the structure. Ridge vent in black with nails sold in carton of 10 4 ft. 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. The fan replaced an existing can light in the shower and was located in a very difficult corner.

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. Air vent shinglevent ii 1 4 in. 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.

Soffit vents when paired with ridge vents provide complete ventilation for your whole roof surface. Ridge vents provide constant airflow along the entire undersideof the roof to help remove heat and moisture. 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. 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.

This over heated air can damage roof structures and shingles as well as increase cooling costs in the home. Gable vents may circulate air through only a small percentage of your attic. Or worse the exhaust vents could lead to warm moist air from the house s interior being pulled into the attic which could be problematic. Since there isn t any provision for the intake of air the ridge vent is basically ineffective.

We see many older homes with no attic ventilation and some that have recently had ridge vents installed. List of the cons of roof ridge vents. Ridge vents do not always provide the proper ventilation in some homes. Figure courtesy of air vent inc.