It needs to be unfaced.
Puttine fiberglass batts in attic.
Sloppy people aren t suited for this job.
Batts fiberous rolls or sheets of owens corning fiberglass insulation installed between the ceiling joists in the attic are one of the most effective energy upgrades the average.
The first step in the insulation process involves cutting and laying onto the floor both the vapor barrier depending on climate and batt insulation.
You can add loose fill on top of fiberglass batts or blankets and vice versa.
Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all.
Most of insulation comes in rolls or precut fiberglass batts.
Diy fiberglass batts insulation.
Either works but rolls are recommended to quickly cover the area in your attic which is important when just beginning to learn how to insulate your attic because it s easier and more accessible for beginners.
As you will most likely find the attic floor will have joists running along it and both the vapor barrier and batt needs to be cut accordingly to fit in between these joists.
Cut fiberglass batts to fit tightly between floor joists.
The fiberglass batts in the wall above it extend past the bottom of the wall cavity and fit loosely into the cavity of the 2 12 floor joists hiding the fact that there is no insulation in that void.
Insulation should be rolled out perpendicular to the joists and unfaced rolls should be used.
You can install fiberglass batts yourself right over existing insulation but follow these precautions.
Batts must be cut tightly and you can t have gaps.
Wear a long sleeve shirt gloves eye protection and a dust mask.
If you use fiberglass over loose fill make sure the fiberglass batt has no paper or foil backing.
You might spend many hours kneeling in your attic to achieve this same result with fiberglass batts.
Lightly press the batt down between the joists.
Blown in fiberglass creates a seamless blanket in your attic.
When adding additional insulation you do not have to use the same type of insulation that currently exists in your attic.
Batt or rolled insulation or blown loose fill insulation fiberglass or cellulose can be installed on top of old insulation.
Lay the batts across the ceiling joists covering the existing insulation.
Make sure you use an unfaced batt one without a paper or foil layer so the insulation does not trap moisture in the ceiling.
