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HomeMy WebLinkAboutFIRESTOPICC-ES-ESR-1255-2020ICC-ES Evaluation Reports are not to be construed as representing aesthetics or any other attributes not specifically addressed, nor are they to be construed
as an endorsement of the subject of the report or a recommendation for its use. There is no warranty by ICC Evaluation Servi ce, LLC, express or implied, as
to any finding or other matter in this report, or as to any product covered by the report.
Copyright © 2020 ICC Evaluation Service, LLC. All rights reserved. Page 1 of 9
ICC-ES Evaluation Report ESR-1255
Reissued May 2020
This report is subject to renewal May 2022.
www.icc-es.org | (800) 423-6587 | (562) 699-0543 A Subsidiary of the International Code Council ®
DIVISION: 07 00 00—THERMAL AND MOISTURE
PROTECTION
Section: 07 81 33—Mineral-Fiber Fireproofing
REPORT HOLDER:
3M FIRE PROTECTION PRODUCTS
EVALUATION SUBJECT:
3M FIRE BARRIER DUCT WRAP 615+ BLANKET FOR
GREASE DUCT ENCLOSURE ASSEMBLIES
1.0 EVALUATION SCOPE
Compliance with the following codes:
2018, 2015, 2012 and 2009 International Building
Code® (IBC)
2018, 2015, 2012 and 2009 International Mechanical
Code® (IMC)
2018, 2015, 2012 and 2009 IAPMO Uniform Mechanical
Code (UMC)
Other Codes (see Section 8.0)
Properties evaluated:
Durability
Fire resistance
Noncombustibility
Surface burning characteristics
2.0 USES
The 3M Fire Barrier Duct Wrap 615+ is a flexible blanket
used to construct zero-clearance, fire-resistance-rated
grease duct enclosure assemblies serving Type I kitchen
hoods. The duct wrap material complies with 2018, 2015,
2012 IMC Section 506.3.11.2 (2009 IMC Section
506.3.10.2) and 2018 IAPMO UMC Sections 507.4.5 and
507.4.6 [(2015 IAPMO UMC Sections 507.3.5 and
507.3.6), (2012 IAPMO UMC Sections 507.2.5 and
507.2.6), (2009 IAPMO UMC Sections 507.2.6 and
510.7.3.1), and is an alternative to the one- and two-hour
fire-resistance-rated enclosure requirements of 2018, 2015
and 2012 IBC Section 713.4 (2009 IBC Section 708.4) and
2018, 2015 and 2012 IAPMO UMC Section 510.7 (2009
IAPMO UMC Section 510.7.1), when installed in
accordance with Section 4.0.
3.0 DESCRIPTION
3.1 Materials:
3.1.1 3M Fire Barrier Duct Wrap 615+ Blanket: The
blanket consists of a monolithic layer of proprietary soluble,
vitreous alkaline earth oxide (calcium-, silicone-,
magnesium-oxide) fiber material encapsulated in a foil
scrim, having a total nominal thickness of 11/2 inches. It is
packaged in rolls 25 feet (7.6 m) long and either 24 inches
(610 mm) or 48 inches (1219 mm) wide. The blankets have
a nominal density of 6 pcf and have a flame-spread index
of 25 or less and a smoke-developed index of 50 or less
when tested in accordance with ASTM E84. The 615+
blanket is classified as noncombustible when tested in
accordance with ASTM E136.
3.1.2 Banding Material: Banding material must be
minimum 1/2-inch-wide (12.7 mm), 0.015-inch-thick
(3.8 mm) stainless steel or carbon steel strap. Tools used
for banding are a hand tensioner and a clip seal crimping
tool.
3.1.3 Duct System: The duct must comply with Section
506.3 of the IMC or Sections 510.1, 510.4 or 510.5 of the
IAPMO UMC, as applicable. Under the IMC, grease ducts
serving Type I hoods must be constructed either of
minimum 0.0575-inch-thick (1.46 mm) (No. 16 gage) steel
or of stainless steel at least 0.045 inch (1.14 mm) thick.
Under the 2018 and 2015 IAPMO UMC, grease ducts
serving Type I hoods must be constructed either of
minimum 0.060-inch-thick (1.524 mm) (No, 16 MSG) steel
or of stainless steel not less than 0.048 inch (1.219 mm)
(No. 18 MSG) thick. Under the 2012 and 2009 IAPMO
UMC, grease ducts serving Type I hoods must be
constructed either of minimum 0.054-inch-thick (1.37 mm)
(No. 16 MSG) steel or of stainless steel not less than
0.043 inch (1.09 mm) (No. 18 MSG) thick. Joints and
seams of grease ducts must comply with Section 506.3.2
of the IMC, or Section 510.5.3 of the 2018 and 2015
IAPMO UMC (Section 510.5.2 of the 2012 and 2009
IAPMO UMC). Duct supports must comply with Section
506.3.3 of the IMC, or Sections 510.1.6 and 510.5.1 of the
2018, 2015, 2012 and 2012 IAPMO UMC (2009 IAPMO
UMC Sections 510.1.7 and 510.5.1), as applicable, and
Section 4.2.3 of this report. Maximum duct size is 48
inches by 24 inches (1219 mm by 610 mm). Under IMC
Section 506.3.2.5 or 2018 and 2015 IAPMO UMC Section
510.5.3.1, prior to the use or concealment of any portion of
the grease duct system, a leakage test must be performed
to determine that all welded joints and seams are liquid
tight.
3.1.4 Sealants: 3M Fire Barrier 1000 N/S Silicone
Sealant (Non-Slump) and 3M Fire Barrier 1003 S/L
ESR-1255 | Most Widely Accepted and Trusted Page 2 of 9
Silicone Sealant (Self-Leveling) are ready-to-use, one-
component silicone elastomers used in through-
penetration fire-stop assemblies described in Section
4.2.4. The sealants are packaged in cartridges and have a
shelf life of 12 months from date of packaging when stored
in a clean, dry area with temperatures between 40°F and
90°F (4.4°C and 32.2°C).
3.1.5 3M Fire Barrier Grease Duct Access Door and
DuctMate ULtimate Door: The rectangular prefabricated
access doors are UL listed Hood and Duct Accessories.
The access doors are provided in three sizes: 12 inches by
8 inches (305 mm by 203 mm), 14 inches by 10 inches
(356 mm by 254 mm) and 22 inches by 22 inches (559 mm
by 559 mm). The access door assembly consists of the 3M
access door, four 1/4-inch-diameter (6.4 mm) threaded
extension rods, three layers of the 615+ blanket, a No. 16
gage cover plate, and wing nuts and washers.
4.0 INSTALLATION
4.1 General:
The Duct Wrap 615+ wrap materials are installed with zero
clearance from the ducts, and may be installed with zero
clearance from the insulating material to combustible
construction. Grease ducts protected with Duct Wrap 615+
are permitted to penetrate nonfire-resistance-rated wall,
floor-ceiling and roof-ceiling assemblies, provided the duct
is protected from the point of penetration in accordance
with this report. The systems are also permitted to
penetrate fire-resistance-rated assemblies when the
through-penetration is protected in accordance with
Section 4.2.4 of this report. The systems comply with the
requirements of IMC Section 602.2.1 and IAPMO UMC
Section 602.2 for installation in plenums. The field-applied
grease duct enclosure assemblies must be installed in
accordance with IAPMO UMC Section 510.7.4.
4.2 Two-hour Fire-resistance-rated Enclosure
Assembly:
4.2.1 Enclosure Assembly: The duct must be installed
in accordance with IMC Section 506.3 or IAPMO UMC
Sections 510.1, 510.4 or 510.5, as applicable. Ducts must
have a maximum 48-inch-by-24-inch (610 mm by 1219
mm) cross-sectional opening. A total of two layers of
blanket material is installed around the grease duct, using
one of the four overlap techniques illustrated in Figure 1.
Adjacent blankets on the inside layer are installed with
either tight butt-joints between blankets or 3-inch (76 mm)
perimeter and longitudinal overlaps. Edge joints of the
second layer must be offset 101/2 inches (267 mm) from
those of the first layer. The second layer of blanket
material must have minimum 3-inch (76 mm) perimeter
and longitudinal overlaps. Before the insulation is applied
on ducts of 24 inches and larger, 7-inch-long (178 mm),
No. 12 gage, copper-coated, mild steel impaling pins must
be welded to the duct on the underside of horizontal
assemblies and vertical assemblies spaced as illustrated in
Figure 1B. Galvanized, mild steel speed washers must be
placed over each impaling pin to secure the blanket. Steel
banding straps must be placed circumferentially, 11/2
inches (38 mm) from the edge of the blanket and at 10 1/2
inches (267 mm) on center. Material must not be installed
that has been abused or damaged, e.g., stepped on,
unintentionally cut or ripped. The tension in the banding
straps must be sufficient to firmly retain the blanket
materials, but not to unduly compress the blanket, and
must not be so great as to cause any cutting or damage or
compression to the blanket material. Seven-inch-long (178
mm), No. 12 gage, copper-coated, mild steel impaling pins,
welded to the duct as shown in Figure 1B, can be used as
an alternative to steel banding straps on any size duct.
4.2.2 Grease Duct Access Doors:
4.2.2.1 General: Grease duct access doors must comply
with IMC Section 506.3.8 and IAPMO UMC Section 510.3,
as applicable.
4.2.2.2 Prefabricated Access Doors: The 3M Fire
Barrier Grease Duct Access Door Assembly or Ductmate
Ultimate Doors are installed as illustrated in Figure 3.
Three layers of the 615+ blanket must be installed over the
access door such that each layer overlaps the preceding
layer by 1 inch (25 mm) on all four sides. Edges of the
outer layer of insulation blanket must be sealed with
aluminum foil tape. A No. 16 gage steel plate the same
size as the outer layer of insulation blanket must be
secured over the outer layer of insulation.
4.2.2.3 Field-fabricated Access Doors: The access
doors must be protected with three layers of 3M Fire
Barrier Duct Wrap 615+ blanket material as illustrated in
Figures 2 and 3. The first layer of blanket is cut the same
size as the door, and the subsequent layers must overlap
the previous layer by 1 inch (25.4 mm). Access door labels
must be applied to all access doors.
4.2.3 Duct Support: Horizontal duct assemblies with
maximum cross-sectional openings of 24 inches by
24 inches (610 mm by 610 mm) must be supported with
minimum 3/8-inch-diameter (9.5 mm), all-thread steel rod
and 2-inch-by-2-inch-by-1/8-inch (51 mm by 51 mm by
3.2 mm) steel angle, spaced a maximum of 60 inches
(1524 mm) on center. A minimum clearance of 0 inch and
a maximum clearance of 6 inches (152 mm) is required
between the vertical edge of the blanket material
surrounding the duct and the steel rod.
Horizontal duct assemblies with maximum dimensions of
24 inches by 48 inches (610 mm by 1219 mm) must be
supported with minimum 1/2-inch-diameter (12.7 mm),
all-thread steel rod and 2-inch-by-2-inch-by 1/4-inch (51 mm
by 51 mm by 6.4 mm) steel angle spaced a maximum of
60 inches (1524 mm) on center. A minimum clearance of
0 inch (0 mm) and a maximum clearance of 6 inches
(152 mm) is required between the vertical edge of the
blanket material surrounding the duct and the steel rod.
Vertical assemblies must be supported as shown in
Figure 4. Vertical ducts must be supported at every floor
line on the top of the slab.
4.2.4 Through-penetration Fire-stop Assemblies: See
Table 1 and Figures 4 and 5 for descriptions of various
through-penetration firestop assemblies that are used with
the 3M Fire Barrier Duct Wrap 615+ system. The forming
material placed in the annular space must be compressed
to fill the space. The forming material must be recessed
the appropriate depth (identified as Sealant Depth in
Table 1) for application of the sealant. The sealant must be
flush with the wall or floor surface. On floors, the sealant
must be overlapped onto the floor approximately 1 inch
(25.4 mm) and onto the insulated duct approximately
1/4 inch (6.4 mm).
5.0 CONDITIONS OF USE
The 3M Fire Barrier Duct Wrap 615+ grease duct
enclosure assembly described in this report complies with,
or is a suitable alternative to what is specified in, those
codes listed in Section 1.0 of this report, subject to the
following conditions:
5.1 The enclosure systems must be constructed and
installed in accordance with this report. In the event of
a conflict between this report and the manufacturer’s
instructions, this report governs.
ESR-1255 | Most Widely Accepted and Trusted Page 3 of 9
5.2 The blanket materials are manufactured for 3M in
Coahuila, Mexico, under a quality control program
with inspections by ICC-ES.
6.0 EVIDENCE SUBMITTED
Data in accordance with ASTM E2336 and the ICC-ES
Acceptance Criteria for Field-applied Grease Duct
Enclosure Assemblies (AC101.1), dated December 2012
(editorially revised October 2018).
7.0 IDENTIFICATION
7.1 The 3M Fire Barrier Duct Wrap 615+ blanket material
must bear a label indicating the product name, the 3M
Fire Protection Products name and address,
clearance to combustible construction in accordance
with the applicable code, and the evaluation report
number (ESR-1255). The wording “Fire-resistive
Enclosure, Do Not Remove” must be printed on the
blankets at maximum 24-inch (610 mm) intervals.
The 3M Fire Barrier Duct Wrap 615+ blanket material
covering access opening panels shall be labeled with
the wording “ACCESS PANEL. DO NOT
OBSTRUCT.” As an alternative to labeling the
insulation material, a sign including “ACCESS
PANEL. DO NOT OBSTRUCT.” must be installed in
the field over the insulation material covering the
access opening panels.
The 3M Fire Barrier Grease Duct Access Doors are
identified by a label bearing the 3M Company name
and address, and the product name.
The Ductmate Ultimate Doors are identified by a label
bearing the Ductmate Industries, Inc.’s name and
address, and the product name.
Sealants must be identified by the 3M company name
and address, and the product name.
7.2 The report holder’s contact information is the
following:
3M FIRE PROTECTION PRODUCTS
3M CENTER, BUILDING 223-2N-20
ST. PAUL, MINNESOTA 55144-1000
(651) 733-0973
www.3m.com/firestop
8.0 OTHER CODES:
In addition to the codes referenced in Section 1.0, the
products described in this report were evaluated for
compliance with the requirements of the following codes:
2006 International Building Code® (2006 IBC)
2006 International Mechanical Code® (2006 IMC)
2006 IAPMO Uniform Mechanical Code (2006 UMC)
2003 International Building Code® (2003 IBC)
2003 International Mechanical Code® (2003 IMC)
2003 IAPMO Uniform Mechanical Code (2003 UMC)
The products comply with the above-mentioned codes as
described in Sections 2.0 through 7.0 of this report, except
the applicable code sections are as follows for the report
sections cited:
• Section 2.0:
— Grease duct enclosures:
o 2006 and 2003 IMC Section 506.3.10
— Shaft enclosures:
o 2006 and 2003 IBC Section 707.4
o 2006 and 2003 UMC Section 510.7.1
• Section 3.2:
— Joints and seams of grease ducts:
o 2006 and 2003 IMC Section 506.3.2
o 2006 and 2003 UMC Section 510.5.2
— Duct supports:
o 2006 and 2003 IMC Section 506.3.3
o 2006 and 2003 UMC Sections 510.1.7 and
510.5.1
• Section 4.1:
— 2006 and 2003 IMC Section 602.2.1
— 2006 and 2003 UMC Section 602.2
• Section 4.2.2.1:
— 2006 IMC Section 506.3.8
— 2003 IMC Sections 506.3.9 and 506.3.11
— 2006 and 2003 UMC Section 510.3
ESR-1255 | Most Widely Accepted and Trusted Page 4 of 9
TABLE 1—THROUGH-PENETRATION FIRESTOP ASSEMBLIES1
MAXIMUM DUCT
SIZE
(inches by inches)
WALL, FLOOR OR
CEILING
CONSTRUCTION
ANNULAR SPACE
(inches)
PENETRATION FIRESTOP FIRE-RESISTANCE
RATING
(hours)
Min. Max. Forming Materials Sealant Depth
(inches)
F-Rating T-Rating
24 × 30, wrapped with
3M Duct Wrap
through-penetration
No. 25 gage steel
studs with one layer of
5/8-inch gypsum board
on both sides
5/8 31/2
Unfaced 3M Duct
Wrap or min. 4 pcf
mineral wool
compressed 25
percent
5/8, both sides 1 NA
24 × 30, wrapped with
3M Duct Wrap
through-penetration
No 25 gage steel
studs with two layers
of 5/8-inch gypsum
board on both sides
1 31/2
Unfaced 3M Duct
Wrap or min. 4 pcf
mineral wool
compressed to fill the
annular space
5/8, both sides 2 NA
24 × 30, wrapped with
3M Duct Wrap
through-penetration
2-by-10 wood joists,
with 5/8-inch gypsum
board on the bottom
side and 3/4-inch
plywood on the top
side
1 21/2
Unfaced 3M Duct
Wrap or min. 4 pcf
mineral wool
compressed 25
percent
3/4, top surface 1 1
24 × 30, wrapped with
3M Duct Wrap
through-penetration
41/2-inch reinforced
concrete slab 11/4 21/2
Unfaced 3M Duct
Wrap or min. 4 pcf
mineral wool
compressed to fill the
annular space
7/16, top surface 2 2
24 × 30, bare duct
through-penetration
41/2-inch reinforced
concrete slab 1 2
Unfaced 3M Duct
Wrap or min. 4 pcf
mineral wool
compressed 25
percent
3/8, top surface 2 2
24 × 48, wrapped with
3M Duct Wrap
through-penetration
41/2-inch reinforced
concrete slab 1 41/2
Unfaced 3M Duct
Wrap or min. 4 pcf
mineral wool
compressed 56
percent
1/4, top surface 2 2
For SI: 1 inch = 25.4 mm.
1See Figure 4 and Figure 5 for an illustration of components.
ESR-1255 | Most Widely Accepted and Trusted Page 5 of 9
FIGURE 1—TYPICAL APPLICATION OF DUCT WRAP
ESR-1255 | Most Widely Accepted and Trusted Page 6 of 9
FIGURE 2—3M FIRE BARRIER DUCT WRAP 615+
COMMERCIAL KITCHEN GREASE DUCT SYSTEMS,
1- OR 2-HOUR, ACCESS DOOR SYSTEM
FIGURE 3—3M FIRE BARRIER OR DUCTMATE ULTIMATE
GREASE ACCESS DOOR
FIGURE 4—3M FIRE BARRIER DUCT WRAP 615+ COMMERCIAL KITCHEN GREASE DUCT SYSTEMS,
1- OR 2-HOUR, VERTICAL SUPPORT
ESR-1255 | Most Widely Accepted and Trusted Page 7 of 9
FIGURE 5—THROUGH-PENETRATION FIRE-STOPS
ICC-ES Evaluation Reports are not to be construed as representing aesthetics or any other attributes not specifically addressed, nor are they to be construed
as an endorsement of the subject of the report or a recommendation for its use. There is no warranty by ICC Evaluation Service, LLC, express or implied, as
to any finding or other matter in this report, or as to any product covered by the report.
Copyright © 2020 ICC Evaluation Service, LLC. All rights reserved. Page 8 of 9
ICC-ES Evaluation Report ESR-1255 CBC and CMC Supplement
Issued May 2020
This report is subject to renewal May 2022.
www.icc-es.org | (800) 423-6587 | (562) 699-0543 A Subsidiary of the International Code Council ®
DIVISION: 07 00 00—THERMAL AND MOISTURE PROTECTION
Section: 07 81 33—Mineral-Fiber Fireproofing
REPORT HOLDER:
3M FIRE PROTECTION PRODUCTS
EVALUATION SUBJECT:
3M FIRE BARRIER DUCT WRAP 615+ BLANKET FOR GREASE DUCT ENCLOSURE ASSEMBLIES
1.0 REPORT PURPOSE AND SCOPE
Purpose:
The purpose of this evaluation report supplement is to indicate that 3M Fire Barrier Duct Wrap 615+ Blanket, recognized in
ICC-ES evaluation report ESR-1255, has also been evaluated for compliance with of the code(s) noted below.
Applicable code edition(s):
2016 California Building Code (CBC)
For evaluation of applicable chapters adopted by the California Office of Statewide Health Planning and Development
(OSHPD) and Division of State Architect (DSA), see Sections 2.1.1 and 2.1.2 below.
2016 California Mechanical Code (CMC)
For evaluation of applicable chapters adopted by the California Office of Statewide Health Planning and Development
(OSHPD) and Division of State Architect (DSA), see Sections 2.2.1 and 2.2.2 below.
2.0 CONCLUSIONS
2.1 CBC:
The 3M Fire Barrier Duct Wrap 615+ Blanket for Grease Duct Enclosure Assemblies, described in Sections 2.0 through 7.0
of the evaluation report ESR-1255, are zero-clearance, fire-resistance-rated grease duct enclosure assemblies serving Type
I kitchen hoods, that comply with CBC Sections 712.1.6, 714.3.1.2 and 714.4.1.2, provided the design and installation are in
accordance with the 2015 International Building Code® (IBC) provisions noted in the evaluation report and the additional
requirements of CBC Chapter 7, as applicable.
2.1.1 OHSPD: The 3M Fire Barrier Duct Wrap 615+ Blanket for Grease Duct Enclosure Assemblies, described in Sections
2.0 through 7.0 of the evaluation report ESR-1255, comply with CBC adopted Sections 712.1.6, 714.3.1.2 and 714.4.1.2
[OSPHD 1, 2 & 4] provided the design and installation are in accordance with the 2015 International Building Code® (IBC)
provisions noted in the evaluation report and the additional requirements of CBC Chapter 7, as applicable.
2.1.2 DSA: The 3M Fire Barrier Duct Wrap 615+ Blanket for Grease Duct Enclosure Assemblies, described in Sections 2.0
through 7.0 of the evaluation report ESR-1255, comply with CBC adopted Sections 712.1.6, 714.3.1.2 and 714.4.1.2 [DSA-
SS & DSA-SS/CC] provided the design and installation are in accordance with the 2015 International Building Code® (IBC)
provisions noted in the evaluation report and the additional requirements of CBC Chapter 7, as applicable.
2.2 CMC:
The 3M Fire Barrier Duct Wrap 615+ Blanket for Grease Duct Enclosure Assemblies, described in Sections 2.0 through 7.0
of the evaluation report ESR-1255, are zero-clearance, fire-resistance-rated grease duct enclosure assemblies serving Type
I kitchen hoods, that comply with CMC Sections 507.3.5 and 507.3.6 and the Exception to CMC Section 510.7.3, provided
the design and installation are in accordance with the 2015 IAPMO Uniform Mechanical Code® (IAPMO UMC) provisions
noted in the evaluation report.
ESR-1255 CBC and CMC Supplement | Most Widely Accepted and Trusted Page 9 of 9
2.2.1 OHSPD: The 3M Fire Barrier Duct Wrap 615+ Blanket for Grease Duct Enclosure Assemblies, described in Sections
2.0 through 7.0 of the evaluation report ESR-1255, comply with CMC adopted Sections 507.3.5 and 507.3. and the
Exception to CMC Section 510.7.3 [OSHPD 1, 2, 3 & 4], provided the design and installation are in accordance with the 2015
IAPMO Uniform Mechanical Code® (IAPMO UMC) provisions noted in the evaluation report.
2.2.2 DSA: The 3M Fire Barrier Duct Wrap 615+ Blanket for Grease Duct Enclosure Assemblies, described in Sections 2.0
through 7.0 of the evaluation report ESR-1255, comply with CMC adopted Sections 507.3.5 and 507.3. and the Exception to
CMC Section 510.7.3 [DSA-SS & DSA-SS/CC], provided the design and installation are in accordance with the 2015 IAPMO
Uniform Mechanical Code® (IAPMO UMC) provisions noted in the evaluation report.
This supplement expires concurrently with the evaluation report reissued May 2020.