For diy attic insulation you ve got two choices.
Baffle insulation finished attic.
Installing baffles from a soffit vent and up the rafter bay allows you to insulate every available inch of attic floor space.
Baffles establish a channel for air to circulate between the insulation and the roof sheathing.
Quite simply what it says on the tin a soffit vent is a ventilation system.
They allow the air to circulate under or near the insulation.
Loose fill or batt the common term for blanket insulation.
To meet all three goals insulating your finished attic ventilating the roof and maximizing headroom use a combination of dense batt insulation rigid foam sheeting and air chutes.
An attic baffle along with correct insulation is designed to rectify or prevent these problems from occurring.
Without baffles you must keep vents clear of insulation which means.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
If your finished attic includes knee walls along the lower sections of the space you only need to install baffles to the area where drywall will be attached directly to the roof rafters.
It allows stale air to pass freely to the outside of your home or an office.