Attic Ridge Ventilation

A new roof is more than just shingles.

Attic ridge ventilation. 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. Help remove excess heat and moisture to protect your roof from premature deterioration. Ventsure 4 foot strip heat moisture ridge vent. Prior to installing the ridge vent a 1 inch wide strip of roof decking is cut out along both sides of the ridgeline to allow for air movement through the vent.

Snow melts and the water refreezes on the cold eaves creating ice dams. Lowering the temperature in the attic can help reduce air conditioning energy costs and roof deck temperature optimize the service life of a roof covering and minimize ice damming. The wind which blows over your roof will help to draw the hot moist air out of your attic when roof ridge vents are installed correctly. 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.

Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. Intake vents located at the lowest part of the roof under the eaves allow cool. Best ventilation is open soffit venting to a open vented ridge vent. This happens because of the change in air pressure.

Ventsure 4 foot strip heat moisture ridge vent with weather protector moisture barrier. Thick ridges of ice on your eaves in winter are a sign of poor attic ventilation. But some roof air vents sit fairly flat to the roof with a mushroom style hood and unprotected sides. See the benefits of attic ventilation.

Most air vent styles prevent direct intrusion of water. Choose one of the following products to meet the recommended exhaust nfva of 528 square inches. 27 lineal feet required. Insulation at least r 38 or more is there for heating and cooling.

And on occasion a hard driving rain with whipping wind will cause roof. To lower attic temperatures and to remove excess moisture. You may have a ridge vent turbine vent powered air vent or free air vent. One last thought attic ventilation is not there to get rid of heat it is there to get rid of excess moisture accumulating from the home.

The inside air moves through the ridge vest underneath the cap shingle to escape from the side and into the general atmosphere. Effective attic ventilation systems reduce damaging heat and moisture in your attic promote energy efficiency by helping to reduce the load on your air conditioner in the summer and also reduce the risk of ice dam formation on your roof. It can do both. Roof vents come in a variety of styles.

Warm air that escapes rooms below gets trapped in the attic. Ventilation and attic vents. Attic ventilation serves two main functions.