Questions and Answers for Knauf Insulation R-13 EcoBatt Kraft Faced Fiberglass Insulation Batt 23 in . X 93 in. x 3-1/2 in. (8-Bags)

A:  Wood construction width of insulation is 15" and steel stud construction is full 16" material.

A:  R38 12" 16X48 is for standard attic application that are 16" on center. The R38 10.25 15X48 is produced for cathedral ceiling applications. In a cathedral ceiling, you need to have a 1" air gap between the insulation and the roof deck, so you do not experience roof rot.

A:  I have craw space. Does faced insulation good for craw space and does the faced go up in rafters or the bottom thanks

A:  Kraft paper should face the interior wall or the conditioned side of the building.

A:  Sound proofing is based upon the complete wall construction not just the insulation.

A:  The kraft facing should always face the heated side of the home, so the interior side.

A:  You may use R13 Kraft 23" X93" batts and cut to length.

A:  Kraft paper is a vapor retarder and you should not install two vapor retarders, as this could result in condensation.

A:  When folded out, the staple flange is 1 1/8".

A:  Yes ,this insulation can be used for sound proofing.

A:  “Testing in the industry has shown that filling a cavity provides more acoustical performance in an assembly than underfilling. Therefore, unless both product fill the cavity, it would be expected that the 12” product will provide more acoustical performance.”