Loose fill or batt the common term for blanket insulation.
Baffle insulation finished attic.
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.
Installing baffles from a soffit vent and up the rafter bay allows you to insulate every available inch of attic floor space.
Without baffles you must keep vents clear of insulation which means.
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.
Quite simply what it says on the tin a soffit vent is a ventilation system.
Both can be added to uninsulated attics or layered over existing material.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
Most codes require a specified minimum amount of headroom and it s tough to meet this requirement when insulating a finished attic especially since most.
Baffles establish a channel for air to circulate between the insulation and the roof sheathing.
If you want to insulate the rafter bays rather than the attic floor in order to make the attic a heated space baffles are even more important for proper air circulation.
For diy attic insulation you ve got two choices.