It is a vertical pipe attached to a drain line and runs through the roof of your home.
House has no roof vents.
The eaves are the part of the roof that hangs over the walls of the house.
Hot air exhaust vents located at the peak of the roof allow hot air to escape.
If you don t know how your roof vents work or if you re unsure about your attic ventilation in general you should talk to a roof inspector about your current system and any inherent weaknesses that may be at work.
What happens when a roof doesn t have proper ventilation.
Most post war ranches are one story houses with a low roof pitch and shallow eaves with a flat soffit.
With a soffit venting is not much of a challenge.
Let me break it down.
Improper roof ventilation can also affect the health of your family.
You simply cannot over estimate its importance.
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.
Thankfully there are some ways around this dilemma.
However if the home has no soffit it is quite a different matter.
Vent roofs with steeples towers or cupolas can be found in different buildings from barns to cathedrals.
For example the addams family house has a high roof pitch.
A roof pitch is how steep the slope of the roof is.
The idea of roof vents existed for hundreds of years with natural vents employed in chinese buildings during the tang dynasty natural ventilation ducts in the buddhist monks caves and wind catchers incorporated in arabian architecture.
Did i just lose you.
The important thing to remember is the air must flow through the attic to the roof vents somewhere near the ridge of the roof.
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.
Now that we ve reviewed how ventilation works.
Taking advantage of this natural process referred to as passive ventilation is the most common way to vent an attic.
The building codes and building science for.
Improper ventilation allows formation of condensation moisture accumulation and damage to the roof deck and eventually to the stability of the roof.
Located at the edges of the roof these intake vents can be installed at the eaves under the soffit at the drip edge or under the shingles at the roof s edge.
