Specification
STANDARD SIZES*
R-VALUE
(hr•ft
2
•ºF/Btu)
RSI VALUE
(m
2
•ºC/Watts)
THICKNESS
**
WIDTH
†
in (mm) WOOD FRAMING in (mm) METAL FRAMING in (mm)
†† ††
2¾ (70) — 16 (406) 24 (610)
11 1.9 3½ (89) 3
5
⁄8 (92) 15 (381) 19 (483) 23 (584) 16 (406) 24 (610)
13 2.3 3½ (89) 3
5
⁄8 (92) 15 (381) 23 (584) 16 (406) 24 (610)
15 2.6 3½ (89) 15 (381) —
19 3.3 6½ (165) 15 (381) 19 (483) 23 (584) 16 (406) 24 (610)
20 3.5 5½ (140) 15 (381) —
21 3.7 5½ (140) 15 (381) 23 (584) 16 (406)
22 3.9 7½ (191) 15 (381) —
30 5.3 10¼ (260) 16 (406) 19 (483) 24 (610) 16 (406) 24 (610)
30
‡
5.3 8¼ (210) 15½ (394) 23
5
⁄8 (600) —
38 6.7 13 (330) 16 (406) 24 (610) 16 (406) 24 (610)
38
‡
6.7 10¼ (260) 15½ (394) 23
5
⁄8 (600) —
49 8.6 13½ (343) 16 (406) 24 (610) 16 (406) 24 (610)
* Consult your local JM sales representative or product availability chart for available sizes and R-values (RSI-values) including wide-roll products.
** Thickness may vary by producing location.
† Special widths and lengths may be available. Check with your local JM sales representative. Standard product lengths include 48”, 93” and 96” (1219 mm, 2362 mm and 2438 mm) batts.
†† For sound control applications in interior walls.
‡ Cathedral ceiling application.
APPLICABLE STANDARDS & BUILDING CODE CLASSIFICATION
JM UNFACED INSULATION JM KRAFT FACED INSULATION JM FOIL FACED INSULATION
ASTM C665, Type I; ASTM E136 ASTM C665, Type II Class C, Category 1 ASTM C665, Type III, Class B, Category 1
IBC, ALL TYPES IBC TYPES III, IV, V IBC TYPES III, IV, V
PHYSICAL PROPERTIES
‡‡
PRODUCTION FLAME SPREAD SMOKE DEVELOPED VAPOR RETARDER (PERMS) WATER VAPOR SORPTION
Unfaced* <25 <50 N/A <5%
Foil Faced <75 <150 0.05 N/A
Kraft Faced N/R N/R 1 N/A
‡‡ Products are tested in accordance: R-value ASTM C518 | Surface Burning Characteristics ASTM E84 | Perm Rating ASTM E96 | Water Vapor Sorption ASTM C1104
Kraft and standard foil facing will burn. Do not leave exposed. Facing must be installed in substantial contact with an approved ceiling, oor or wall material. Keep open ame and other heat sources
away from facing. Do not place insulation within 3" of light xtures or similar electrical devices unless device is labeled for contact with insulation. Use only unfaced insulation between wood framing
and masonry chimneys. Do not use insulation in spaces around metal chimneys, replaces, or ues. JM Unfaced insulation is considered non-combustible by model building codes. Flame Spread 25
products are ame spread rated and can be left exposed where codes allow. See package for warnings, re hazard and installation instructions, or call 800-654-3103.
Due to potential skin irritation, unfaced insulation should not be used for exposed applications where it will be subject to human contact.
* Unfaced berglass insulation is considered noncombustible according to ASTM E136.
Visit our website at www.JM.com or call 800-654-3103
|
Building Insulation Division P.O. Box 5108 | Denver, CO 80217-5108
Technical specications as shown in this literature are intended to be used as general guidelines only. The physical and chemical properties of thermal
and acoustical berglass insulation listed herein represent typical, average values obtained in accordance with accepted test methods and are subject to
normal manufacturing variations. They are supplied as a technical service and are subject to change without notice. Any references to numerical ame
spread or smoke developed ratings are not intended to reect hazards presented by these or any other materials under actual re conditions. Check with
the sales ofce nearest you for current information. All Johns Manville products are sold subject to Johns Manville’s Limited Warranty and Limitation of
Remedy. For a copy of the Johns Manville Limited Warranty and Limitation of Remedy or for information on other Johns Manville thermal and acoustical
insulation and systems, visit the website or call the 800 number above. 717 17th Street Denver CO, 80202
BID-0144 1/18 © 2017 Johns Manville. All Rights Reserved.
Formaldehyde-Free
™
Fiberglass Insulation
UNFACED | KRAFT FACED | FOIL FACED