How Does Roof Ventilation Work

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.

How does roof ventilation work.

Good attic ventilation is important for preventing ice dams in the winter. How does an attic fan work. 3 benefits of roof ventilation 1. Attic must have 5 sq.

The home does not have an endless supply of cold air available for ventilating through a whirly bird. 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. 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. 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.

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. How does roof ventilation work. Extends the life of your roof. These can be ridge vents wind turbines or the flat vents your roofer wants to install.

Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. The system that allows the ventilation of. 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 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. Calculate or enter the square footage of the attic or area to be vented. When exploring the best attic ventilation practices consider installing an attic ventilation fan to keep the hot air from settling in. Good roof ventilation can do this but shingle color sun exposure and insulation are exponentially more important to overall energy efficiency than ventilation.

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. If you don t have soffits or your roof style doesn t allow for soffit vents some homeowners will consider a drip edge vent.