Fiberglass Batt InsulationJM Formaldehyde-free™ thermal and acoustical insulation. It is made of long, resilient glass fibers bonded with our bio-based binder. A wide range of thermal resistance R-values is available to provide thermal control for both vertical and horizontal applications. JM insulation is available unfaced or with a variety of facings, including Kraft-Faced Batts & Rolls, or Unfaced Batts & Rolls.
KRAFT-FACED BATTS & ROLLS
Ideal for moisture control in exterior walls, JM Kraft-faced thermal and acoustical insulation offers R-values ranging from R-11 to R-38.
Our Kraft-faced insulation is available in pre-cut batts to fit standard wall cavities,and rolls that can be cut to fit any size cavity in buildings.
A few years back the Green Curmudgeon at Green Building Advisor, Carl Seville, suggested that batt insulation should be banned because the installations were consistently awful.
He noted " We get what we pay for, and when we only pay bottom dollar for fiberglass batts, we get the performance we deserve." It turns out that this isn't just a North American problem. Matthew Cutler-Welsh of New Zealand website Home Style Green points to an audit of 58 installations of insulation by the Energy Efficiency and Conservation Authority;
Not a single installation was free of defects.The installation faults found include: damaged insulation, folds, tucks, gaps or insulation overlap, and areas not insulated where they should have been. Insulation has been compressed, incorrectly fixed or supported, incorrectly fitted around top plates, downlights, auxiliary equipment, or extractor fans. Insulation has also been incorrectly fitted around electrical wiring and plumbing systems.