How to install attic insulation over existing insulation you can install fiberglass batts yourself right over existing insulation but follow these precautions.
Easiest way to add attic insulation.
When adding additional insulation you do not have to use the same type of insulation that currently exists in your attic.
Open cell and closed cell.
You can add loose fill on top of fiberglass batts or blankets and vice versa.
Add weatherstripping around the perimeter and a sweep to the door of a walk up attic.
To install it just lay it across the joists.
The best way to insulate an attic or pretty much anything else in a home is to use spray foam insulation.
There are two types of spray foam insulation.
If you already have six inches of insulation and you want to get to the recommended r 38 add an attic blanket it s also made of fiberglass but it has no paper backing.
Wear a long sleeve shirt gloves eye protection and a dust mask.
How do i add insulation to existing attic insulation.
Measure how much insulation you already have.
Once it s compressed it s easy to cut with a utility knife.
Use a zippered insulated tent to keep the enclosure draft free attic tent at 7 attic cover insulator 120.
Attic hatch or door.
Put on goggles and gloves to protect yourself while handling.
Add the right kind of insulation.
Check the depth using a tape measure.
Affix rigid foam insulation to the attic side of the hatch or door.