Foam Insulation Baffles On Roof
At the top of your roof are exhaust vents. They are there to allow for the escape of heat, hot air, and odors trapped in your attic. Baffles and roof vents are both the same thing. Baffles, also known as rafter vents, are placed in the attic where there is an intake vent (soffit ventilation). Baffles keep vents clear of insulation. They also allow outside air to flow freely through the attic through the soffit vents.
Baffles create a barrier between the unconditioned and conditioned areas, which stops insulation from entering unwanted spaces like walls or exteriors. Baffles allow airflow to continue, while still maintaining an insulated space. If your intake vents become blocked, you can reduce the amount of fresh air required to ventilate your attic properly. This can cause heat buildup and moisture buildup in winter. It may seem counterintuitive but you don't want heat to buildup in your attic during winter. Ice dams can form in hot attics, which can prove to be extremely destructive.
Insulation baffles made of cardboard: These insulation baffles channel warm and cold air through roof vents. They prevent insulation from blocking the soffit. To create a strong structure, cardboard attic baffles can be made from corrugated stock. They can become fragile and less durable over time.