Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.
Attic insulation vent retainers.
It can be cut to fit most joist spaces and is an affordable way to meet energy code requirements for air flow.
In most cases the best type of attic insulation will be blown fiberglass or blown cellulose insulation.
Attic ceiling to stop airborne moisture from reaching a cold surface and condensing inside the building envelope.
It comes on an easy to install flexible mesh roll and is hand nailable with no complicated fitting wrapping nail gun adapters.
Unvented attic assemblies unvented attics rely on an air impermeable insulation installed to the roof deck s underside i e.
Owens corning s raft r mate and atticmate products are extruded polystyrene foam vents designed for 16 or 24 on center framing.
Use it between rafters to create an air channel through insulation to help keep air flowing freely in your attic.
Some homeowners also take the time to build walkways and or storage platforms in the attic prior to installing insulation.
For improved air circulation in the attic install the durovent 22 in.
Intake vents located at the lowest part of the roof under the eaves allow cool.
To keep the ventilation space clear above soffit vents special baffles need to be installed before the insulation goes in.