This occurs through the rising of warm air and the falling of cooler air.
Soffit ven optins for roof with no eave.
Venting drip edge basically combines continuous soffit vent with an extended drip edge.
Install low gable vents located above the top level of the attic ceiling insulation.
Focus on the other ventilation.
Finish your roof off with a ridge vent and your attic should be well ventilated.
If your house has minimal or non existent overhangs that won t accomodate soffit vents or you simply aren t able to install them for some reason then you have a couple of options to provide intake air inlets low near the roof perimeter.
If your roof is simple and straightforward and if aesthetics and truss strength permit then you create a vented roof design by adding 2x sleepers and a new deck and roof.
Drip edge vents hang out several inches past the edges of the roof allowing you to trim.
Generic vent strips are cheap and easy to find and carpenters are familiar with the approach.
They call this a venting drip edge.
22 in x 3 in galvanized steel eave vent item 2180321 model ev223 1 8.
Two simple alternatives to soffit vents can be installed with little more than a circular saw and a hammer.
Intake vents such as soffits are placed lower on the roof usually under the eaves.
Provide continuous soffit or eaves intake venting as we describe at roof venting.
Aluminum under eave soffit vent in white carton of 36 model eac16x4w 36 view the master flow intake.
This is probably the most costly solution to an un vented no overhang roof design and is practical only in cases where the building is being modified for other reasons.
Master flow 16 in.
A strip of intake venting built into the roof overhang soffit is the traditional method where space allows.
Aluminum under eave soffit vent in brown.
In most cases all you have to do is trim a little usually about an inch off the top of the fascia to allow for airflow into the attic.
Air vent 17 master flow 15 gibraltar building products 7.
New master flow 16 in.
One great alternative to a soffit ventilation system is to install an intake vent right at the lower edge of the roof.
The two roof ventilation options intake vents and exhaust vents should be placed to take advantage of the natural increased speed of air circulation.
Use eye brow vents that are on the top of the sloping roof surface near the soffit eave area.
The venting drip edge seems to be the easiest and most common way to go.