Most homes already have some passive attic venting built in.
Attic soffet pushed in.
There are two large powered fans in the attic mounted near the apex on 2 sides of the house.
Many experts consider plugging these holes to be more important than ventilation.
Aluminum or vinyl soffits eaves installed over plywood soffits that don t have venting holes.
It allows stale air to pass freely to the outside of your home or an office building for example.
Intake was coming through holes gaps from old construction.
Never would have bought the house if i noticed that lol.
This article explains the effects on buildings caused by locked soffit intake vents and we explain how blocked soffit venting causes or contributes to attic condensation moisture and potential mold contamination problems in buildings.
Soffit vents may leave air trapped at the top of your attic.
Blocked or inadequate roof ventilation air intake openings at soffits or eaves.
Proper venting in the attic not only protects the attic itself it also regulates the climate in your house by keeping hot air circulating.
I have a 1940 s home with zero soffits the roof edge just dumps into a gutter attached to the top of the outside wall.
An attic s intake vents are most commonly installed directly in the soffit either as individual vents spaced every few feet or as one continuous perforated soffit running the entire length of.
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.
Most soffits have some form of ventilation holes in the aluminum or separate vents in the wood or even a ventilation strip running the length of the soffit with a screen.
Gaps to the attic around plumbing pipes ducting and electrical boxes.
Most effective ventilation uses a ridge and soffit continuous ventilation system but even these designs can vary from roof to roof.
These come in handy particularly in the summer months as moisture can begin to build up in the attic and can then be pushed back out through the soffit vent.
How to remove insulation from soffit vents.
As the air leaves it creates.
Most soffits are vulnerable to animal entry and given the architecture of a house the eave leads right into the attic where animals like to live.
Once inside the air heats up and rises higher ultimately exiting through venting at the roof s gables through ridge vents cut into the roof s apex or other vent holes in the roof.