Use and Care Guide

Formaldehyde-Free
™
Fiber Glass Insulation
Enhanced with Bio-Based Binder
UNFACED
KRAFT FACED
FOIL FACED
PERFORMANCE ADVANTAGES
Formaldehyde-free: will not off-gas
formaldehyde in the indoor environment.
Thermal Effi ciency: provides effective
resistance to heat transfer with R-values
up to R-49 (RSI-8.6).
Sound Control: reduces transmission of
sound through exterior and interior walls
and fl oor or ceiling assemblies.
Fire Resistant and Noncombustible:
see Physical Properties.
Durable Inorganic Glass: will not rot,
mildew or deteriorate and is noncorrosive
to pipes, wiring and metal studs.
Superior Performance: bonded glass
fi bers are dimensionally stable and will
not slump within the wall cavity, settle or
break down during normal applications.
ENERGY AND ENVIRONMENT
COMPANY
Johns Manville is committed to creating more comfortable, healthier and energy
effi cient indoor environments. We revolutionized the building insulation industry by
pioneering the development of Formaldehyde-free
™
fi ber glass building insulation
over a decade ago. We continue to build on our legacy of innovation with a new
Formaldehyde-free
™
fi ber glass insulation solution that utilizes an innovative bio-based
binder, made mostly from rapidly renewable plant-based materials, that continues to
offer excellent thermal and acoustical performance as well as improved handling,
easier cutting and less dust than our previous product. At JM, we believe that in
every detail, materials matter.
DESCRIPTION
JM Formaldehyde-free
™
thermal and acoustical insulation is made of long, resilient
glass fi bers 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 or foil vapor retarder.
USE
JM Formaldehyde-free
™
thermal and acoustical insulation can be used in a
wide variety of wood frame, engineered wood and steel frame construction
applications, including:
New Construction: residential homes and commercial buildings interior and
exterior walls, fl oors and ceilings for thermal and sound control, as well as basement
wall insulation.
Retrofi t: adding insulation to attics, crawl spaces and above suspended ceilings.
INSTALLATION
JM insulation cuts easily with an ordinary utility knife, and unfaced or tabless
versions install easily by simply pressing in place between studs or joists in standard
framing. Standard facings have stapling tabs for attachment to framing if additional
securement is required.
PACKAGING
JM insulation is compression-packaged for savings in storage and freight costs.
DESIGN CONSIDERATIONS
Kraft and standard foil facings on this product will burn and must not be left exposed.
It must be covered with gypsum board or another approved interior fi nish. Where an
exposed application is required, use FSK-25 fl ame-resistant faced insulation.
In colder climate areas, vapor retarders (whether attached to the insulation or applied
separately) are often placed toward the heated or conditioned side of the wall. This is
done to reduce water vapor penetration into the wall from the building interior.
Check your local building codes for vapor retarder requirements.
Refer to JM guide specifi cations for further design considerations and required
installation instructions.
LIMITATIONS OF USE
Check applicable building codes.
PRODUCT DATA SHEET
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