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INSTALL GUIDES: Cathedral Ceiling (click for Installation Instructions)
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Use: Prodex 48 Inch, 10 MFast Action, White72 Inch, 24 Inch, 16 Inch, Reflective Bubble Reflective or Foil Fiberglass Vinyl

Prodex insulation installed in a cathedral ceiling

How To Insulate A Cathedral Ceiling

  1. Install unfaced mass insulation with at least a 1 inch air-gap between it and roof sheathing.
  2. Staple, screw or glue (Super metal Sealant) Prodex Total to underside of trusses.
  3. Seal seams with reflective tape or order Prodex Fast Action  or 10M to avoid having to use seam tape.
  4. Install 1" x 2" wood strapping under Prodex Total.
  5. Install Drywall over the strapping.

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