Raft r mate attic rafter vents create a space between each rafter for air to flow freely up the rafters and into the attic.
Insullate roof rafters with gable vents.
To install the rafter vents staple them directly to the roof decking.
They allow the fresh air to travel up under the roof to the ridge or gable vents keeping the roofing materials dried out and in good working order.
If insulation is allowed to bunch against the inside slope of the roof between the rafters air will be blocked before it can traverse the attic.
Rafter vents or insulation baffles install in any rafter space to create narrow gaps that direct fresh air from the soffit vents to the peak of the roof.
Attic insulation rafter baffle proper vents 70 pieces model 70rm view the owens corning attic insulation 179 00 179 00.
Owens corning raft r mate 22 1 2 in.
Rafter vents ensure the soffit vents are clear and there is a channel for outside air to move into the attic at the soffits and out through the gable or ridge vent.
Install ventilation baffles into the space between the rafters before you install the insulation usually by stapling into place.
If your attic is going to be converted into livable space then you will need to insulate the roof rafters.
The answer is rafter venting.
The fresh air flows up between rafters to the ridge where a ridge vent roof vents or gable vents allow the air to exit.