How Does Roof Ventilation Work

Let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator.

How does roof ventilation work.

Using inside air via ceiling ventilation to feed a roof ventilation device encourages hot summer air from outside via windows doors and other points of air leakage to come inside overloading your air conditioning system. Drip edge vents are a two in one installation that promote water shedding at the eaves and rakes of a roof while also allowing for ventilation into the attic. Ft of vent space half dedicated for air intake in the soffits and the other half for exhaust on the roof. Attic must have 5 sq.

Attic fans are intended to cool hot attics by drawing in cooler outside air from attic vents soffit and gable and pushing hot air to the outside. When exploring the best attic ventilation practices consider installing an attic ventilation fan to keep the hot air from settling in. Intake vents located at the lowest part of the roof under the eaves allow cool. Sure installing roof vents for older homes can reduce your hot air during the summer but there are probably more low risk cost effective ways to increase your home s energy.

Attic ventilation fans help cool air your attic by pushing out the stifling hot air from inside the attic and bringing in cool air from outside. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. The intake vents work with ridge vents to allow cool air to enter the attic space forcing warm air to exit through the ridge vents. How does an attic fan work.

These can be ridge vents wind turbines or the flat vents your roofer wants to install. The system that allows the ventilation of. 3 benefits of roof ventilation 1. Extends the life of your roof.

How does roof ventilation work. If you don t have soffits or your roof style doesn t allow for soffit vents some homeowners will consider a drip edge vent. The home does not have an endless supply of cold air available for ventilating through a whirly bird. However if your attic has blocked soffit vents and is not well sealed from the rest of the house attic fans will suck cool conditioned air up out of the house and into the.

Good roof ventilation can do this but shingle color sun exposure and insulation are exponentially more important to overall energy efficiency than ventilation. Now that we ve reviewed how ventilation works and how a roof can be properly vented let s expand on the benefits of roof ventilation.