Attic Insulation Backing

Now here s a situation where a homeowner what looks like many years ago added insulation they added a three inch layer but.

Attic insulation backing.

Is this going to cause condensation in the winter and rot the insulation under the paper water vapor and therefore the wood. He said since it was low i could roll out r 30 on it which i did. Air migrates from warmer spaces toward colder spaces and insulation is designed to help prevent or at least slow that migration. As you add the insulation keep the paper backing facing down toward the.

Roll out the insulation and fit it between attic floor joists which are also the ceiling joists for the room below. What is the right insulation for an attic. Click to add item johns manville r 23 mineral wool insulation batt 15 25 x 47 24 9 sq ft to the compare list. Any new batt or roll insulation installed over existing insulation in the attic needs to be without a vapor retarder face.

Compare click to add item johns manville r 23 mineral wool insulation batt 15 25 x 47 24 9 sq ft to the compare list. The vapor retarder on top of or between layers of insulation can trap moisture. The main factors that impact the cost are. You can buy them unfaced or simply remove the paper or foil backing.

Place a new layer of unfaced batts perpendicular to the old layer to cover any gaps in the lower layer. The attic is the easiest place to add insulation to improve your comfort and the energy efficiency of your home. Owens corning ecotouch r 15 30 sq ft single faced fiberglass roll insulation 15 in w x 24 ft l item 821444. Any existing batt or roll insulation in the attic should have the facing against the attic drywall floor or no facing at all.

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. Can i put the peper face against the outside wall and the second piece put fiberglass sides together so the paper face of the inside paper is against the sheet rock. It needs to be unfaced if you choose to add loose fill it may be wise to hire a professional as the application requires the. If you use fiberglass over loose fill make sure the fiberglass batt has no paper or foil backing.

Can you double up paper back insulation to fill deeper space by using 2 by 6 board studes as framing. Some of the insulation in the attic is the stuff that blows on and doesn t have a paper side. For pricing and availability.