Installing Manville Faced Fiberglass Batt Attic Floor

The basic installation steps are the same for walls ceilings floors and roofs in wood frame houses.

Installing manville faced fiberglass batt attic floor.

Buy 15 or more 32 54. 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. If there is already insulation between the joists increase the r value by installing unfaced roll insulation right on top. Owens corning r 30c ecotouch pink cathedral ceiling kraft faced fiberglass insulation batt 15 1 2 in.

Any moisture vapor that gets through your. If you install faced insulation over existing blown in you re essentially putting the vapor barrier in the middle between the two layers of insulation. If the insulation is too long for a space cut it to the correct size. Wherever insulation is installed in a building it is very important that it fits snugly on all sides.

The batting material must be faced and at least as thick as the joists are wide so the batting is nearly flush with the top of the joists. We used two levels one with no paper went in first then the other with paper went on top facing into the attic between the studs in the floor of the attic. Johns manville fiber glass batt and roll insulation is easy to install and does not require a certified installer. Set a t square or metal straightedge over the insulation and press it down firmly.

Cut the insulation roll or batt to fit the length of the framing cavity if necessary. Johns manville r 21 kraft faced fiberglass insulation batt 15 in. If it is too short cut a piece to fill the void. Kraft faced insulation is ideal for moisture control in exterior walls reduces sound transmission through walls ceilings.

10 bags model k1263. Place the insulation with the facing side down on a piece of scrap plywood. Johns manville formaldehyde free kraft faced thermal and acoustical insulation offers r values up to r 49 and is offered in precut batts to fit standard wall cavities or rolls for custom installation in any size cavity. View the owens corning 2x4 wall floor insulation 46 48 46 48.