How Does Roof Ventilation Work

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.

How does roof ventilation work.

A roof ventilation system works by providing a continual flow of air through the attic space helping remove overheated air and moisture from the attic and roof system and reduce the impact of changing temperatures and moisture conditions both inside and outside the home. Good attic ventilation is important for preventing ice dams in the winter. 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. 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.

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. 3 benefits of roof ventilation 1. 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.

Intake vents located at the lowest part of the roof under the eaves allow cool. Extends the life of your roof. 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. 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. Calculate or enter the square footage of the attic or area to be vented. 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. The home does not have an endless supply of cold air available for ventilating through a whirly bird.

The system that allows the ventilation of. When exploring the best attic ventilation practices consider installing an attic ventilation fan to keep the hot air from settling in. 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. These can be ridge vents wind turbines or the flat vents your roofer wants to install.

Attic must have 5 sq. Good roof ventilation can do this but shingle color sun exposure and insulation are exponentially more important to overall energy efficiency than ventilation.