Attic s need continuous ventilation at the eave edge to draw fresh air in and remove trapped hot moist and toxic air out through the roof exhaust vents.
Roof edge soffit vents.
The main purpose of these vents is to circulate the air inside of your roof so that moisture build up inside the home is reduced.
Air vent s the edge vent provides proper intake ventilation for homes with little or no overhang.
Soffit vents allow drafts of wind to push air up through your attic to the roofing vents on top.
How soffit vents work.
There are several ways these can be installed to allow your roof to breathe.
To accomplish a balanced ventilation system the intake must provide an nfa of 9 or greater on each side.
Air vent 2 3 in.
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Multiple types of vents can work together to create an equal inflow of cool air and outflow of hot air in your house.
Intake vents such as soffits are placed lower on the roof usually under the eaves.
Certainteed ridge vent combined with sufficient intake vents such as certainteed intake vent are the most efficient and effective systems you can install.
It can be used to supplement existing soffit or undereave vents as well.
Exhaust vents like attic fans ridge vents are primarily placed at the very top of the roof or the highest pitch where hot air gathers.