To install fiberglass batts over existing insulation lay the batts perpendicular to the joists so they do not compress the insulation below.
How to install insulation batts in attic.
Roll insulation is best for floors ceilings and roofs with a long joist or rafter bays and for tall walls.
Kraft faced or paper faced insulation comes in batts and long rolls.
Determine the type of insulation needed for your attic.
All kraft faced insulation is easy to cut with a sharp utility knife or insulation knife.
Whether you live in a warm weather state as i do or in a cooler northern climate it s hard to stay comfortable and keep your energy bills in check if you don t have adequate insulation in the attic.
If there is already insulation between the joists increase the r value by installing unfaced roll insulation right on top.
Next any stored belongings or debris in the attic are removed and stored in a safe location that is out of the way.
If your attic floor has no insulation install faced batts or faced rolls between each joist with the moisture barrier facing down against the drywall or plaster ceiling below.
Commonly used for diy projects they work well in open spaces like attic floors.
Batt and roll insulation also called blanket insulation are designed to fit between joists and wall stud cavities.
We used batt insulation for our project.
Installing attic insulation requires first preparing the surfaces around the attic entry to ensure that any contaminants in the attic aren t spread throughout the home.
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 do it.