The problem with gables is they short circuit the air flow paulcp writes.
How roof ridge vents work.
Start by removing the nails holding the ridge cap shingles in place.
For most asphalt shingle ridge caps there are two.
Adequate soffit ventilation coupled with ridge ventilation produces a pathway for a continuous airflow along the entire underside of the roof deck.
Hidden in plain sight and often camoflauged by specialty ridge shingles these.
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.
That means you have a lower risk of mold or mildew development.
Airflow is maintained two ways.
That s the small side portion of ridge vent that looks like a vent.
For a ridge vent to work properly it must have adequate intake of fresh cool air.
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.
Install new field shingles.
Cut the ventilation opening.
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.
If there are more than one they are centered between the rafters and installed at regular intervals in a horizontal line along the roof.
Install the ridge vent shingle over style install the ridge vent aluminum.
Remove the shingle caps.
You will also discover that this product can work by itself to release moisture from the house which is especially useful during the winter months.
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.
First hot air naturally rises and exits out the ridge vent pulling in cool air from below.
Equal flow of exhaust and intake should be provided.
Ridge vents openings that run the entire length of your roof along the ridge are often visible only to a trained eye.
Ridge vent works on the basis of several principles.
Static vents come in a variety of different styles and sizes but are all non motorized vents installed near the roof ridge to allow for unobstructed flow of air from the attic.
900 square foot attic 150 square feet 6 square feet of net free area.
