Faced Or Unfaced Insulation In Attic Knee Walls

I ve always said adding insulation to your attic is some of the best money you can spend to make your house more energy efficient but whether to use faced or unfaced insulation is a great question.

Faced or unfaced insulation in attic knee walls. Kraft faced insulation should be installed in exterior walls exterior basement walls and attic ceilings by pressing the product into the wall cavity with the paper side. Third many side attic knee wall areas are very restrictive in accessiblity and working height. Unfaced batt insulation is often used for beefing up the r rating with the r rating being the insulation rating scale that says how much or how effective insulation needs to be in that space. This makes is extremely difficult to install a rigid thermal barrier over the stud framing.

All kraft faced insulation is easy to cut with a sharp utility knife or insulation knife. Basement ceiling ideas installation diy faced or unfaced insulation for a basement ceiling johns manville r 30 unfaced. The batts are precut to fit into cavities on standard 8 foot high walls. What is the right insulation for an attic.

How do i insulate a basement ceiling this old house. Roll insulation is best for floors ceilings and roofs with a long joist or rafter bays and for tall walls. The use of foil faced even fsk materials should never be installed after the cavity insulation has been installed. It means ensuring that it s the right product for your space.

Now here s a situation where a homeowner what looks like many years ago added insulation they added a three inch layer but. If installing unfaced insulation in unfinished walls such as an interior wall allow friction to hold the insulation in place. The same applies to faced unfaced and other kinds of insulation products. Unfaced means the insulation lacks a vapor retarder paper or plastic facing.

Staple the flanges of faced insulation to the interior faces of the wall studs or stud edges. Walk out basement wall insulation. When stapling avoid stretching the facing too tightly overcompressing the insulation or creating gaps or puckers. Kraft faced insulation includes a paper vapor retarder which helps prevent mold and mildew.

Kraft faced or paper faced insulation comes in batts and long rolls. Air migrates from warmer spaces toward colder spaces and insulation is designed to help prevent or at least slow that migration.