900 square foot attic 150 square feet 6 square feet of net free area.
How does a roof ridge vent work.
Airflow is maintained two ways.
Equal flow of exhaust and intake should be provided.
Well when hot air in your attic rises and you have roof ridge vent installed the positive airflow across the ridge of roof exchanges air naturally by allowing the hot air that rises to escape from in the vent like openings in the ridge vents.
Having roof vents can make a huge difference in your life.
A shingle over vent is installed over the ridge of a roof and is covered over by asphalt shingle caps that match the surrounding roof shingles.
Ridge vents are typically made of metal.
The combination of a ridge vent along with continuous soffit vents gives you a flow through of air similar to the way a chimney works.
The problem with gables is they short circuit the air flow paulcp writes.
First hot air naturally rises and exits out the ridge vent pulling in cool air from below.
It will save you money on energy costs as well as prolong the life of your roof.
That means you have a lower risk of mold or mildew development.
As the ridge vent expels hot humid air intake vents feed fresh cool air into the attic.
One of the great things about a ridge vent is that it is at the topmost point of your roof with hot air constantly rising it is bound to make it way out of the top of your vents thus bringing in cooler air through your soffit vents and into your roof cooling it down.
Basically a roof ridge vent is a vent that is installed on the peak of your roof which allows when installed along with soffit vents for hot and humid air to escape your roof by drawing in cool air through your soffit vents and pushing that hot air through your ridge vent.
Once installed on the ridge line and possibly covered with shingles the vents are inconspicuous.
For a ridge vent to work properly it must have adequate intake of fresh cool air.
The main purpose of a roof ridge vent is to optimize airflow under the roof.
Even without soffit vents a ridge vent is much more effective than gable vents paulcp thinks hammer is right.
Ridge vents are excellent additions to the gable and soffit vents your home may already have.
An aluminum ridge vent has a mushroom shaped profile combined with a wide flange on both sides that sits on top of the roof shingles.
It s not extremely expensive to install ridge vents but it does take a few ben franklin s.
Adequate soffit ventilation coupled with ridge ventilation produces a pathway for a continuous airflow along the entire underside of the roof deck.
Roof ridge vents do work well when there are soffit vents or box vents that help to draw air into the attic.
That s the small side portion of ridge vent that looks like a vent.
What is a ridge vent and how does it work.
