Attic Air Ridge Vent

Ridge vents provide constant airflow along the entire undersideof the roof to help remove heat and moisture.

Attic air ridge vent.

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. 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. Ridge vents do not always provide the proper ventilation in some homes. The effect of ridge vents for the roof depends upon the energy efficient nature of the structure.

Figure 5 ridge vent vs. List of the cons of roof ridge vents. Attic and roof temperatures can soar as high as 160 degrees in the summer. Since there isn t any provision for the intake of air the ridge vent is basically ineffective.

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. 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. This over heated air can damage roof structures and shingles as well as increase cooling costs in the home. A shirt 30 minutes later and ventilation through the roof was completed.

Gable vents may circulate air through only a small percentage of your attic. We see many older homes with no attic ventilation and some that have recently had ridge vents installed. Soffit vents when paired with ridge vents provide complete ventilation for your whole roof surface. 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.

Air vent shinglevent ii 1 4 in. 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. Taking advantage of this natural process referred to as passive ventilation is the most common way to vent an attic. Ridge vent in black with nails sold in carton of 10 4 ft.

Figure courtesy of air vent inc. 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. The majority of roofing experts agree that ridge vents are the most effective and cost effective roof vents available. Without baffles blinders that prevent outside air from crossing over the vent a ridge vent may create almost no ventilation at all.