Attic Vents Are They Necessary

I had new power vents installed they are more powerful move more air than previous ones.

Attic vents are they necessary.

In theory these are excellent tools for circulating air in the attic and keeping the attic temperature low. Rafter vents come in 4 foot lengths and 14 1 2 and 22 1 2 inch widths for different rafter spacings. Continuous or individual soffits. Attic insulation that is less than r 19.

Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. Attic vents control moisture and temperature intake vents under the soffits are an important part of a n attic ventilation system. Mark the roof venting locations from the attic where you can see the rafters and avoid placing roofing vents over them. To install the rafter vents staple them directly to the roof decking.

Soffit vents are one of the most popular intake vent styles. Intake vents located at the lowest part of the roof under the eaves allow cool. In practice however attic power ventilators may not be as useful as we might hope. Vents that run along the roof ridge are an alternative to those that exit through the roof decking or gables and if the ridge is long enough they may be the only roof vents.

In fact they can be harmful to your energy bill. A fan may actually suck air conditioned air from your home into the attic. Photos 1 6 show how it s done. Adding attic vents is a simple matter of cutting holes and installing vents.

It may be starting to sound like attic ventilation fans aren t worth the hassle and could cause more problems than they solve. But before you cut any holes plan the locations of the attic vents. Attic ventilation fans could be effective if your home has. By installing more roof vents such as a ridge vent you increase the possibility that most attic air will come from outside says tim carter a residential contractor in cincinnati.

If you have few vents in your attic most of the air will be drawn from inside the house. However there are certain circumstances where they can prove useful. Things have been ok low energy bills house very comfortable. Told that the 2 attic power vents are the only attic ventilation i have the house does have vented soffits every other soffit cover is vented.

They are easy to install under the roof s overhang which is known as the soffit are generally hidden from sight and provide excellent protection from weather outdoor debris and pests while still allowing air to flow into the attic. Where necessary smaller branch vents that can t easily be connected to a main soil stack may also run directly up through the roof. Rafter vents ensure the soffit vents are clear and there is a channel for outside air to move into the attic at the soffits and out through the gable or ridge vent.