Understanding the UL
Fire Resistance Directories
Understanding the UL Fire Resistance Directories
Mundise Mortimer
National Gypsum Company
2001 Rexford Road
Charlotte, NC 28211
704-365-7494
MMortimer@nationalgypsum.com
Please note: you will need to complete the conclusion
quiz online at ronblank.com to receive credit
www.nationalgypsum.com
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Course Number: NGC09D
Understanding UL
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Understanding UL
An American Institute of Architects (AIA)
(
)
Continuing Education Program
Course Format: This is a structured, web-based, self study course with a
final exam.
Course Credit: 1 Health Safety & Welfare (HSW) Learning Unit (LU)
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Understanding UL
C
Copyright
i ht M
Materials
t i l
This presentation is protected by US and International copyright
laws. Reproduction, distribution, display and use of the
presentation without written permission of
© Ron Blank & Associates, Inc. 2007
a d
and
© National Gypsum Company 2007
is prohibited.
Understanding UL
L
Learning
i Objectives
Obj ti
Upon completion of this course the Design Professional will be
able to:
• Find UL designs on-line
• Explain the difference between the three UL Volumes
• Understand Fire Rated Assemblies
• Explain how to use Volume 1
• Explain
E l i how
h
th first
the
fi t 10 pages off V
Volume
l
1 can help
h l
• List the fire resistant properties of gypsum
• Define what gypsum calcination is
• Analyze 3 UL designs
FAQ s
• Discuss FAQ’s
Understanding UL
Wh is
Who
i Underwriters
U d
it
Laboratories?
L b t i ?
•
An independent, not-for-profit company
•
Perform
P
f
product-safety
d t f t testing
t ti
and certification
•
O
Over
100 years old
ld (f
(founded
d d iin1894)
1894)
•
17 billion UL marks appear on products
•
64,482 manufacturers produce UL
certified products
•
UL customers are found in 99 countries
Understanding UL
UL Fi
Fire R
Resistance
i t
Di t i
Directories
All volumes available on the UL website:
•
•
•
•
www.UL.com*
Download
Can be copied onto plans
“reprinted with permission...”. Page vii,
paragraph 8
UL wants architects and designers to cut, copy, and
paste directly from their web pages into their plans to
be sure that the project is specified correctly.
correctly Let’s
Let s look
at the UL web site…
Understanding UL
UL Website
W b it
Understanding UL
UL Fi
Fire R
Resistance
i t
Di
Directories
t i
3 Volumes: Vol. 1
Vol. 2A
Vol. 2B
Vol. 3
2006
2006
2006
2006
Understanding UL
V l
Volume
3
3:
• Dampers
2006
• Fire
Fi Doors
D
• Glazing Materials
• Related Equipment
q p
Understanding UL
V l
Volume
2A
2A:
2006
•
Joint Systems
•
Through-Penetration
g
Firestop Systems
•
Electrical Circuit
Protective Systems
•
Duct Assemblies
Understanding UL
V l
Volume
2B
2B:
2006
•
Joint Systems
•
Through-Penetration
g
Firestop Systems
•
Electrical
El
t i l Circuit
Ci
it
Protective Systems
•
Duct Assemblies
Understanding UL
V l
Volume
1
1:
2006
•
•
•
•
•
•
Beams
Floors
Roofs
Columns
Walls
Partitions
Understanding UL
Fi Rated
Fire
R t dA
Assemblies
bli
• Based on hourly ratings
• Test standards:
ASTM E119
NFPA 251
ASTM provides
id th
the standards
t d d tto
which UL tests assemblies.
Understanding UL
R
Research
h&T
Testing
ti F
Facility
ilit
ASTM E 119
2 things determine a successful fire test:
T
Temperature
t
(did nott rise
i above
b
th
the lilimit)
it)
Hose stream (no through penetration or
wallboard failure to the other side)
This may look like a failure but is actually a
pass. The temperature did not rise above
the limit and the wall passed the hose test.
As you can see, the wall did not fail with
the hose stream test . There is not through
penetration or wallboard failure to the other
side.
Buffalo, New York
Understanding UL
ASTM E119 Standard
St d d Time/Temperature
Ti /T
t
Curve
C
This is the time temperature curve.
curve This shows that at 5 minutes,
minutes
the furnace reaches 1000 degrees and at 1 hour the furnace
reaches 1700 degrees during the standard test.
1800
1700º F
1 HR.
1600
1400
1200
1000º F
5 Min
1000
At 5 minutes, furnace
reaches 1000’F.
At 1 hour, furnace
reaches 1700’F.
800
600
400
200
0
0
1
2
3
Understanding UL
T t Requirements,
Test
R
i
t ASTM E119
• Average of all thermocouples must not exceed
250°F over ambient temperature
• No single thermocouple can exceed 325°F over
ambient temperature
• Structure can
can’tt show evidence of burn through
• Structure must not collapse
p
Understanding UL
Fi i h Rating
Finish
R ti vs. Fire
Fi Rating
R ti
• Fire Ratings pertain to a total ASSEMBLY.
• Finish Rating is the time required to obtain an
average temperature rise of 250 degrees (or a
single point rise of 325 degrees) between the
material being tested (gypsum board) and the
substrate being protected (i
(i.e.
e plywood)
plywood).
Understanding UL
V l
Volume
1
• First 10 pages (most
p
)
important)
• Table on page 1
• We will now start to take
a closer look at how to
navigate and use this
book
2006
Understanding UL
I
Important
t t Key
K Passages
P
•
•
•
•
•
•
•
Pg 2 - Nails vs. screws
Pg 3 - Gypsum board orientation
Pg 3 - Gypsum board joint treatment (fire taping)
Pg
g 4 - Metal thickness ((steel joists)
j
)
Pg 5 - Gypsum board
Pg
g 8 - Blanket insulation
Pg 10 - Wall and Partition Assemblies
Understanding UL
P
Page
2 – Nails
N il vs. S
Screws
5. Nails and Screws
Nails are specified according to ASTM F547 or ASTM
C514. Nails used to attach gypsum board to wood
framing shall be cement coated box nails or cement
coated
t d cooler
l nails
il unless
l
specified
ifi d otherwise
th
i iin th
the
specific designs. Screws meeting ASTM C1002 or
ASTM C954 may be substituted for nails
nails, one for
one, when the head diameter, length, and spacing
equal or exceed the requirements for the specified
nails.
Understanding UL
P
Page
3 – Gypsum
G
Board
B d Orientation
O i t ti
10. Gypsum Board Orientation
Vertically applied gypsum board is gypsum board that
is applied with the long edges parallel to the framing
members to which it is attached. Horizontally applied
gypsum board
b d applied
li d iis gypsum b
board
d applied
li d with
ith
the long edges perpendicular to the framing
members to which it is attached
attached.
Understanding UL
P 3 – Gypsum
Pg
G
Board
B d Joint
J i t Treatment
T t
t (fire taping)
11. Gypsum Board Joint Treatment (Fire Taping)
Unless otherwise specified in the specific design all
gypsum board systems except those with predecorated or metal covered surfaces have joints taped
and
d joints
j i t and
d fastener
f t
heads
h d covered
d with
ith one
coat of joint compound (fire taped). Base layers in
multi layer systems are not required to have joints or
fastener heads taped or covered with joint compound.
Understanding UL
P
Page
4 – Metal
M t l Thickness
Thi k
(steel Joists)
7. Steel Joists
The specified minimum size joist in floor- or roof-ceiling designs is the
joist that meets the requirements for both the minimum depth and the
minimum weight per foot. Joists that exceed the specified minimum
size may be used, provided the accessories are compatible. The
dimension from the bottom chord of joists to the ceiling
ceiling, whether given or
calculated, is a minimum.
Spacing between joists may be increased from that specified to a
maximum
i
off 4 ft on centers
t
if the
th floor
fl
slab
l b meets
t structural
t t l requirements
i
t
and the spacing of the hanger wires supporting the ceiling is not
increased. Where it is necessary to provide support for the ceiling hanger
wires
i
b
between
t
th
the jjoists,
i t thi
this may b
be accomplished
li h d b
by using
i 1
1-1/2
1/2 iin., N
No.
16 gauge or larger cold-rolled steel channels. Each channel with its web
oriented vertically should be placed on top of and perpendicular to the
j i ' b
joist's
bottom chord
h d and
d tied
i d thereto
h
with
ihad
double
bl strand
d off N
No. 18 SWG
galvanized steel wire.
Understanding UL
P
Page
5 – Gypsum
G
Board
B d
9. Gypsum Board
Gypsum board thicknesses specified in specific designs are
minimums. Greater thicknesses of gypsum board are permitted as
long as the fastener length is increased to provide penetration
into framing that is equal to or greater than that achieved with the
specified
p
gyp
gypsum board thickness and fasteners.
Additional layers of gypsum board are permitted to be added to any
design.
For designs containing the statement "See
See Gypsum Board (CKNX)
Category for names of Classified Companies," any product in the
category (CKNX) that meets the specifications (i.e., thickness,
size) described in the design may be used
used. This statement is
applicable to any gypsum board manufacturer who produces
Classified gypsum board meeting the thickness and size of the board
specified in the design. It is not required that these Design Numbers
appear in the individual Classifications.
Understanding UL
P
Page
8 – Blanket
Bl k t Insulation
I
l ti
18. Blanket Insulation
Unless specifically described in a design, the addition
of insulation in the concealed space between the
ceiling membrane and the floor or roof structure
may reduce
d
the
th hourly
h
l rating
ti off an assembly
bl by
b
causing premature disruption of the ceiling
membrane and/or higher temperatures on structural
components under fire exposure conditions.
Understanding UL
P
Page
10 – Wall
W ll and
dP
Partition
titi A
Assemblies
bli
• The ratings for walls and partitions apply when either face of the
assembly is exposed to the fire unless indicated otherwise on a
specific
p
Design.
g
• The hourly rating of a load bearing assembly also applies to the same
assembly when it is used as a non-load bearing assembly.
• The size of studs are minimum unless otherwise stated in a Design
Design.
• The spacing of studs is a maximum unless otherwise stated in a
Design.
• Spacing bet
between
een parallel rows
ro s of studs
st ds are minimums
minim ms unless
nless
otherwise stated in the individual designs.
• Gypsum board thicknesses specified in specific designs are
minimums.
i i
G t thicknesses
Greater
thi k
off gypsum board
b d are permitted
itt d as
long as the fastener length is increased to provide penetration
into framing that is equal to or greater than that achieved with the
specified gypsum board thickness and fasteners.
Understanding UL
P
Page
10 – Wall
W ll and
dP
Partition
titi A
Assemblies
bli
• Additional layers of gypsum board are permitted to be added to any design.
• Orientation, vertical or horizontal, of the application of gypsum board in
walls and partitions is specified in the individual design.
• Except when gypsum board is allowed to be applied horizontally in the individual
wall designs, horizontal butt joints of vertically applied gypsum board should be
backed by the same type studs as specified in the design. Alternatively,
minimum
i i
25 gauge steel
t l framing
f
i
with
ith a minimum
i i
attachment
tt h
t face
f
off 1 1/4"
may be used for the backing. Both edges of the gypsum board forming the
horizontal joint shall be attached to the backing with the same screws and
spacing as specified in the design for the attachment of the gypsum board edges,
then finished as specified for the vertical joints.
• Horizontal butt joints on opposite sides of the studs in single-layer
applications should be staggered a minimum of 12 inches unless otherwise
stated in the individual designs. Horizontal butt joints in adjacent layers on the
same face of the assembly in multiple-layer applications should be staggered a
minimum of 12 inches unless otherwise stated in the individual designs.
Understanding UL
P
Page
10 – Wall
W ll and
dP
Partition
titi A
Assemblies
bli
1. Wood Stud Walls
• The fire stopping requirements for wood stud assemblies is to be
determined from the Authorities Having Jurisdiction.
Jurisdiction Horizontal
bridging is included in most fire test samples in order to fully load
the wood studs. This horizontal bridging should not be
considered
id d as a means off fire
fi stopping.
t
i
• The hourly fire ratings for load bearing wood stud walls were
derived with a superimposed
p
p
load applied
pp
to the wall assembly
y
intended to theoretically develop maximum working stresses not
exceeding the design values published in the Supplement to the
1991 Edition of the National Design Specification for wood
construction. In addition, the design load per square inch of
cross sectional area for any wood stud shall not exceed 385 psi.
• Wood
W d stud
t d walls
ll may contain
t i fifire retardant
t d t ttreated
t d studs
t d as wellll
as untreated wood studs.
Understanding UL
P
Page
10 – Wall
W ll and
dP
Partition
titi A
Assemblies
bli
2. Steel Studs
• The dimensions and gauge of steel studs are minimums.
The hourly ratings apply when the steel studs are of a heavier
gauge and/or larger dimensions than specified in a Design. The
superimposed load of bearings walls utilizing steel studs shall be
b
based
d on th
the capacity
it off th
the studs
t d as d
determined
t
i db
by th
the 1986
edition of the AISI Specification for the Design of Cold Formed
Steel Structural Members with the December 11, 1989
Addendum.
Understanding UL
Numbering
g System
y
for Fire-Rated
Assemblies
Understanding UL
N b i S
Numbering
System
t
ffor Fi
Fire R
Rated
t dA
Assemblies
bli
Type of Protection: Membrane Protection
Next, you look at the protection you will
put over the structural element or group
of construction. The first option
p
is
Membrane Protection. This is protection
that is put on top of or mechanically
fastened to the structural element much
like drywall is fastened to steel studs.
Examples are concealed grid or exposed
grid systems
systems, gypsum
gypsum, metal lath and or
plaster. These numbers fall between 000
and 599.
000-099
100-199
200-299
300-399
300
399
400-499
500 599
500-599
Understanding UL
N b i S
Numbering
System
t
ffor Fi
Fire R
Rated
t dA
Assemblies
bli
Type of Protection: Direct Applied Protection
600-699
700-899
Your next option is Direct Applied Protection. Direct Applied is
not fastened to but sprayed on such as mastic coating or
SFRM These design numbers fall between 600
SFRM.
600-899.
899
Understanding UL
N b i S
Numbering
System
t
ffor Fi
Fire R
Rated
t dA
Assemblies
bli
Type of Protection: Unprotected
900-999
Finally,
y, there is Unprotected.
p
Unprotected
p
is not fastened like
membrane protection or sprayed on like Direct Applied but is
protected using masonry or brick block. These designs will fall
between 900-999.
Understanding UL
Fi Resistive
Fire
R i ti Properties
P
ti off Gypsum
G
• Gypsum is approximately 21% by weight chemically
combined water.
• This greatly contributes to its effectiveness as a fire
resistive barrier
barrier.
• Calcination is a process in which a material is heated
to a temperature below its melting point to effect a
thermal decomposition or a phase transition other
th melting.
than
lti
Understanding UL
Fi Resistive
Fire
R i ti Properties
P
ti off Gypsum
G
• Gypsum-protected wood or steel structural members are
exposed to fire.
• Water in board is released as steam and acts as a
thermal barrier until calcination is completed.
• Temperature directly behind the plane of calcination is
only slightly hotter than that of boiling water which is
significantly lower than the temperature at which steel
begins losing strength or wood ignites.
Understanding UL
T
Types
off Drywall/Gypsum
D
ll/G
Board
B d
• “Regular”
g
• Type “X”
• Type “C”
C
Understanding UL
R
Regular
l G
Gypsum B
Board
d
• All gypsum board affords a degree of natural fire
resistance. The fire resistant noncombustible core is
composed mainly off gypsum.
Understanding UL
T
Type
“X” Core
C
• “eXtra” fire resistance
• The basic components added that give Type “X” it’s
superior fire resistant core are gypsum and
fiberglass.
Understanding UL
T
Type
“C” C
Core
• Has superior fire resistance over Type “X”.
• Type “C” core is proprietary, so the enhancing
ingredients vary by manufacturer.
How do I know what type of
gypsum board is being installed?
Understanding UL
UL L
Label
b lS
Sample:
l T
Type X
UNDERWRITERS LABORATORIES INC.®
CLASSIFIED
TYPE
R 3501 WALLBOARD GYPSUM FSW
ISSUE NO
NO. C-3258
C 3258
5/8” (24 OR 46 TO 54 IN. WIDE)
FIRE RESISTANCE CLASSIFICATION
SEE UL FIRE RESISTANCE DIRECTORY
FSW:
Fire-Shield
Hi-Abuse XP Fire-Shield
Fi Shi ld E
Fire-Shield
Exterior
t i S
Soffit
ffit B
Board
d
Fire-Shield Shaftliner
Fire-Shield Shaftliner XP
This iis what
Thi
h t a UL
label looks like
when printed on
the back of
wallboard. The
FSW designates
this is type X
wallboard.
Understanding UL
UL L
Label
b lS
Sample:
l T
Type C
UNDERWRITERS LABORATORIES INC.®
CLASSIFIED
R 3501 WALLBOARD GYPSUM
TYPE
FSW-C
ISSUE NO
NO. C
C-3258
3258
5/8” ((24 O
5/8
OR 46
6 TO
O 54
5 IN. WIDE))
FIRE RESISTANCE CLASSIFICATION
SEE UL FIRE RESISTANCE DIRECTORY
This is a UL label for type C. The FSW-C designates type C.
FSW-C:Fire-Shield C
Understanding UL
UL Di
Directory
t
– Guide
G id IInfo
f
To determine which
products are
included in the
assemblies in the UL
Directory, check out
“CKNX
CKNX.Guide-Info
Guide Info
Gypsum Board”.
Click
Cli
k on “Vi
“View
Listings” to see the
companies included.
Understanding UL
UL Di
Directory
t
- Manufacturers
M
f t
You’ll find
listings for 23
manufacturers
of gypsum
wallboard.
wallboard
Understanding UL
UL Di
Directory
t
- Products
P d t
Here, you’ll
find a list of all
board products
organized by:
• Thickness
• Board width
• Core type
Every
assembly
using that
product is
hyperlinked.
yp
Let’s find an assembly for metal
studs and gypsum board, 1HR.
NUMBERING SYSTEM FOR FIRE RATED ASSEMBLIES
TYPES OF PROTECTION
Understanding UL
Membrane Protection
Numbering
g System
y
for Fire Rated
000-099 100-199
200-299
300-399
400-499 500-599
Assemblies – Types of Protection
Groups of Construction
Direct Applied
Protection
Unprotected
600-699
700-899
900-999
Floors-Ceilings A,B*,or C*
Concealed
Exposed Grid
Concrete and Cellular
(Reserved)
System
Grid Sys.
Steel Floor
(Reserved)
Metal Lath
Gypsum
Board
Misc.
SFRM +
Unprotected
D, E* or F*
D
Concrete and Steel Floor
Units
Concealed
Exposed Grid
(Reserved)
Grid Sys.
System
(Reserved)
Metal Lath
Gypsum
Board
Mastic
Coating
SFRM +
Unprotected
G, H*, or I*
Concealed
Exposed Grid
(Reserved)
Concrete and Steel Joists
Grid Sys.
System
(Reserved)
Metal Lath
Gypsum
Board
Misc.
SFRM +
Unprotected
Concealed
Exposed Grid
(Reserved)
Grid Sys.
System
(Reserved)
Metal Lath
Gypsum
Board
Misc.
SFRM +
Unprotected
Concealed
Exposed Grid
(Reserved)
Grid Sys.
Sys
System
(Reserved)
Metal Lath
Gypsum
Board
Misc.
SFRM +
Unprotected
Mastic
Coating
SFRM +
Unprotected
SFRM +
Unprotected
J or K
Concrete
L or M* Wood Joist or
Combination Wood and
Steel Assemblies
Beams:
N or O* for Floor-Ceiling
Batts &
Concealed
Exposed Grid Blankets or
(Reserved)
Grid Sys.
System
Mineral and
Fiber Boards
Metal Lath
Gypsum
Board
Roof-Ceiling:
P, Q* or R*
Concealed
Exposed Grid
(Reserved)
Grid Sys.
System
(Reserved)
Metal Lath
Gypsum
Board
Misc.
Exposed Grid
System
(Reserved)
Metal Lath
Gypsum
Board
Mastic
Coating
SFRM +
Unprotected
Insulating
Concrete
Wood
ood Stud
Gypsum Bd.
Lath and/or
Plaster
Metal
eta Stud
Gypsum Bd.
Lath and/or
Plaster
Misc.
Metal
eta Panels
a es
Gypsum Bd.
Lath and/or
Plaster
SFRM +
Masonry
(Reserved)
Batts &
Blankets or Metal Lath &
Mineral &
Plaster
Fiber Boards
Gypsum
Board
Mastic
Coating
SFRM +
Reserved)
Beams:
S or T* Roof-Ceiling
Wall & Partition:
U, V or W*
Building
Units
(Reserved)
Bldg. or
Bld
Partition (Reserved)
Panel Units
Columns: X, Y or Z*
Building
Units
Prefabricated
The prefix numbers with an asterisk (*) and the design numbers indicated as "Reserved" in the
above table are for future expansion and to cater to new types of systems
Understanding UL
ASSEMBLY U465
• Wall & Partition:
U, V or W*
• 400 – 499
• Metal Stud, Gypsum Board, Lath
&/or Plaster
• Assembly U465
Understanding UL
D i N
Design
No. U465
Nonbearing Wall Rating – 1 HR
HR.
1. Floor and Ceiling Runners (Not shown)
2. Steel Studs
3. Batts and Blankets*
4. Gypsum Board
5. Joint Tape and Compound
6. Resilient Channel
Understanding UL
D i N
Design
No. U465 continued
ti
d
1.
2.
3
3.
Floor and Ceiling Runners
Channel shaped runners, 3 5/8 in wide, 1 ¼ in legs, formed from
min No 25 MSG galv steel, attached to floor and ceiling with
f t
fasteners
spaced
d 24 iin OC max
Steel Studs
Channel shaped, 3 5/8 in wide (min), 1 ¼ in legs, 3/8 in folded back
returns,
t
formed
f
d from
f
min
i No
N 25 MSG galv
l steel
t l spaced
d 24 iin OC
max.
Batts
B
tt and
d Blankets
Bl k t
Mineral wool or glass fiber batts partially or completely filling stud
cavity.
Understanding UL
D i N
Design
No. U465 C
Continued
ti
d
4.
Gypsum Board* - 5/8 in. thick, 4 ft wide, attached to steel
studs and floor and ceiling
g track with 1 in. long,
g Type
yp S steel
screws spaced 8 in. OC. along edges of board and 12 in. OC
in the field of the board. Joints oriented vertically and
staggered on opposite sides of the assembly. When attached
to item 6 (resilient channels) or 6A (furring channels),
wallboard is screw attached to furring channels with 1 in.
long, Type S steel screws spaced 12 in. OC. When used in
widths other than 48 in., gypsum panels to be installed
horizontally.
Understanding UL
D i N
Design
No. U465 C
Continued
ti
d
5.
Joint Tape and Compound — Vinyl, dry or premixed joint compound,
pp
in two coats to jjoints and screw heads;; p
paper
p tape,
p , 2 in. wide,,
applied
embedded in first layer of compound over all joints. As an alternate, nominal
3/32 in. thick gypsum veneer plaster may be applied to the entire surface of
Classified veneer baseboard. Joints reinforced. Paper tape and joint
compound may be omitted when gypsum boards are supplied with square
edges.
6.
p
Shown)) — 25 MSG g
galv steel resilient
Resilient Channel — ((Optional-Not
channels spaced vertically max 24 in. OC, flange portion attached to each
intersecting stud with 1/2 in. long type S-12 panhead steel screws.
6A Steel Framing Members (Not Shown)* — As an alternate to Item 3,
6A.
3 furring
channels and resilient sound isolation clip as described below:
a. Furring Channels
Understanding UL
Specialty
p
y gyp
gypsum core types
yp that can be used in
U465 in lieu of standard 5/8” Type “X”
Gypsum Company’s Core Type
FSK
Type “X”
X Plaster Board (Blue Board)
FSK-C
Type “C” Plaster Board (Blue Board)
FSK - G
T
Type
“G” Pl
Plaster
t B
Board
d (Bl
(Blue Board)
B d) – Not
N t Available
A il bl
FSW-C
Type “C”
FSW
Type “X”, Abuse Resistant Type “X”, Type “X” Exterior Soffit
Board 1”
Board,
1 Type “X”
X Shaftliner,
Shaftliner 1
1” Type “X”
X Shaftliner mold res
FSW-3
Type “X” Mold Resistant, Type “X” Moisture Resistant, Type “X”
Jumbo Sheathing
FSW-5
Type “X” Impact Resistant Gypsum Board
Let’s find an assembly for metal
studs and gypsum board, 2HR.
NUMBERING SYSTEM FOR FIRE RATED ASSEMBLIES
TYPES OF PROTECTION
Understanding UL
Direct Applied
Protection
Membrane Protection
300-399
400-499
500-599
600-699
700-899
900-999
Floors-Ceilings A,B*,or C*
Concealed
Exposed Grid
Concrete and Cellular
(Reserved)
System
Grid Sys.
Steel Floor
(Reserved)
Metal Lath
Gypsum
Board
Misc.
SFRM +
Unprotected
D, E* or F*
D
Concrete and Steel Floor
Units
Concealed
Exposed Grid
(Reserved)
Grid Sys.
System
(Reserved)
Metal Lath
Gypsum
Board
Mastic
Coating
SFRM +
Unprotected
G, H*, or I*
Concealed
Exposed Grid
(Reserved)
Concrete and Steel Joists
Grid Sys.
System
(Reserved)
Metal Lath
Gypsum
Board
Misc.
SFRM +
Unprotected
Concealed
Exposed Grid
(Reserved)
Grid Sys.
System
(Reserved)
Metal Lath
Gypsum
Board
Misc.
SFRM +
Unprotected
Concealed
Exposed Grid
(Reserved)
Grid Sys.
Sys
System
(Reserved)
Metal Lath
Gypsum
Board
Misc.
SFRM +
Unprotected
Mastic
Coating
SFRM +
Unprotected
SFRM +
Unprotected
Groups of Construction
J or K
Concrete
L or M* Wood Joist or
Combination Wood and
Steel Assemblies
Beams:
N or O* for Floor-Ceiling
Roof-Ceiling:
P, Q* or R*
000-099
100-199
200-299
Unprotected
Batts &
Concealed
Exposed Grid Blankets or
(Reserved)
Grid Sys.
System
Mineral and
Fiber Boards
Metal Lath
Gypsum
Board
Concealed
Exposed Grid
(Reserved)
Grid Sys.
System
(Reserved)
Metal Lath
Gypsum
Board
Misc.
Gypsum
Board
Mastic
Coating
SFRM +
Unprotected
Misc.
Metal
eta Panels
a es
Gypsum Bd.
Lath and/or
Plaster
SFRM +
Masonry
Gypsum
Board
Mastic
Coating
SFRM +
Reserved)
Numbering System for Fire Rated
Assemblies
Beams:
S or T* Roof-Ceiling
Building
Units
Wall & Partition:
U, V or W*
dg or
o
Bldg.
Partition
Panel
Units
(Reserved)
Exposed Grid
System
(Reserved)
Metal Lath
(Reserved)
Insulating
Concrete
Wood
ood Stud
Gypsum Bd.
Lath and/or
Plaster
Metal
eta Stud
Gypsum Bd.
Lath and/or
Plaster
(Reserved)
Batts &
Blankets or Metal Lath &
Mineral &
Plaster
Fiber Boards
Columns: X, Y or Z*
Building
Units
Prefabricated
The prefix numbers with an asterisk (*) and the design numbers indicated as "Reserved" in the
above table are for future expansion and to cater to new types of systems
Understanding UL
ASSEMBLY U411
• Wall & Partition:
U,, V or W*
• 400 – 499
• Metal Stud, Gypsum Board, Lath
&/or Plaster
• Assembly U411
Understanding UL
UL D
Design
i U411 – Nonbearing
N b i W
Wallll R
Rating
ti (2 HR
HR.))
2
2.
3
3.
4
4.
1 Floor and Ceiling Runner (Not Shown)
1.
2. Steel Studs
3. Batts and Blankets*
4 G
4.
Gypsum Board*
B
d*
Understanding UL
UL Design
D i U411
1.
2.
Floor & Ceiling Runners –
Min 25 MSG galv steel 1 inch high
high, return legs 2
2- ½ in.
in
wide (min), attached to floor and ceiling with fasteners.
Steel Studs – Min 2-1/2 in. wide, 1-1/4 in. legs, 3/8 in.
return, formed of min 25 MSG galv max stud spacing 24
in. OC. Studs to be cut ¾ in. less than assembly height.
Understanding UL
UL Design
D i U411
3.
Batts & Blanketsglass fiber batts p
partially
y or completely
p
y
Mineral wool or g
filling stud cavity. Fasten each batt to wallboard base layer
with a min 9/16 in. long staple. Use five staples for each 4
ft piece.
ft.
piece Drive one staple in the center of each piece and
a staple at Each corner, approx. 3 in. from edge.
* See Batts & Blankets category for names of manufacturers.
Understanding UL
UL Design
D i U411
4. Gypsum Board – 5/8 in. thick, outer layer paper or vinyl
surfaced. (Laminated System) Wallboard applied
verticallyy in two layers.
y
Inner layer
y attached to studs with
1 in long Type S steel screws spaced 8 in OC along
vertical edges, and 12 in. OC in the field and outer layer
laminated to inner layer with joint compound
compound, applied
with notched spreader producing continuous beads of
compound about 3/8 in in diameter, spaced not greater
than 2 in OC
OC.
Understanding UL
T
Types
off Gypsum
G
Board
B d used
d in
i U411
Gypsum Company’s Core Type
FSK - C
Type “C” Plaster Board (Blue Board)
FSK - G
Type “G”
G Plaster Board (Blue Board) – Not Available
FSW-C
Type “C”
FSMR-C
Type
yp “C” Mold Resistant,, Type
yp “C” Moisture Resistant
FSW
Type “X”, Abuse Resistant Type “X”, Type “X” Exterior Soffit
Board, 1” Type “X” Shaftliner, 1” Type “X” Shaftliner mold
resistant
FSW-3
Type “X” Mold Resistant, Type “X” Moisture Resistant, Type “X”
g
Jumbo Sheathing
FSW-5
Type “X” Impact Resistant Gypsum Board
Let’s find an assembly for a RoofCeiling system with gypsum wallboard.
NUMBERING SYSTEM FOR FIRE RATED ASSEMBLIES
TYPES OF PROTECTION
Understanding UL
Membrane Protection
Numbering
g System
y
for Fire Rated
000-099 100-199
200-299
300-399
400-499 500-599
Assemblies
Groups of Construction
Direct Applied
Protection
Unprotected
600-699
700-899
900-999
Floors-Ceilings A,B*,or C*
Concealed
Exposed Grid
Concrete and Cellular
(Reserved)
System
Grid Sys.
Steel Floor
(Reserved)
Metal Lath
Gypsum
Board
Misc.
SFRM +
Unprotected
D, E* or F*
D
Concrete and Steel Floor
Units
Concealed
Exposed Grid
(Reserved)
Grid Sys.
System
(Reserved)
Metal Lath
Gypsum
Board
Mastic
Coating
SFRM +
Unprotected
G, H*, or I*
Concealed
Exposed Grid
(Reserved)
Concrete and Steel Joists
Grid Sys.
System
(Reserved)
Metal Lath
Gypsum
Board
Misc.
SFRM +
Unprotected
Concealed
Exposed Grid
(Reserved)
Grid Sys.
System
(Reserved)
Metal Lath
Gypsum
Board
Misc.
SFRM +
Unprotected
Concealed
Exposed Grid
(Reserved)
Grid Sys.
Sys
System
(Reserved)
Metal Lath
Gypsum
Board
Misc.
SFRM +
Unprotected
Batts &
Concealed
Exposed Grid Blankets or
(Reserved)
Grid Sys.
System
Mineral and
Fiber Boards
Metal Lath
Gypsum
Board
Mastic
Coating
SFRM +
Unprotected
Concealed
Exposed Grid
(Reserved)
Grid Sys.
System
(Reserved)
Metal Lath
Gypsum
Board
Misc.
SFRM +
Unprotected
Exposed Grid
System
(Reserved)
Metal Lath
Gypsum
Board
Mastic
Coating
SFRM +
Unprotected
Insulating
Concrete
Wood
ood Stud
Gypsum Bd.
Lath and/or
Plaster
Metal
eta Stud
Gypsum Bd.
Lath and/or
Plaster
Misc.
Metal
eta Panels
a es
Gypsum Bd.
Lath and/or
Plaster
SFRM +
Masonry
(Reserved)
Batts &
Blankets or Metal Lath &
Mineral &
Plaster
Fiber Boards
Gypsum
Board
Mastic
Coating
SFRM +
Reserved)
J or K
Concrete
L or M* Wood Joist or
Combination Wood and
Steel Assemblies
Beams:
N or O* for Floor-Ceiling
Roof-Ceiling:
P, Q* or R*
Beams:
S or T* Roof-Ceiling
Wall & Partition:
U, V or W*
Building
Units
(Reserved)
Bldg. or
Bld
Partition (Reserved)
Panel Units
Columns: X, Y or Z*
Building
Units
Prefabricated
The prefix numbers with an asterisk (*) and the design numbers indicated as "Reserved" in the
above table are for future expansion and to cater to new types of systems
Understanding UL
UL D
Design
i P533
• Roof-Ceiling:
P,, Q*
Q or R*
• 500-599
500 599
• Gypsum Board
• Assembly P533
Understanding UL
UL D
Design
i P533
Design No. P533
Unrestrained Assembl
Assembly Rating
- 1 HR.
Finish Rating - 23 Min.
Understanding UL
UL D
Design
i P533
1.
Roofing
g System
y
2.
Trusses
3.
Batts and Blankets*
3A. Loose Fill Material*
4.
Air Duct*
5
5.
Ceiling Damper*
6.
Furring Channels
7.
Gypsum
yp
Board* - Nom 5/8 in. thick,, 48
in. wide, installed with long dimension
perpendicular to resilient channels with 1-1/8 in.
long Type S screws spaced 12 in. OC and located
a min of 1/2 in. from side jjoints and 3 in. from the
end joints. At end joints, two resilient channels are
used, extending a min of 6 in. beyond both ends of
the joint. When insulation, Item 3 or 3A, is draped
over the resilient channel/gypsum
gyp
wallboard ceiling
g
membrane, screws shall be installed at 8 in. OC.
8.
Finishing System
Understanding UL
Additi
Additional
l ttypes off gypsum b
board
d used
d iin P533
Gypsum Core Types
FSW-C
Type
yp “C”
FSW-G
Type “G” – Not Available
FSK-C
FSK
C
Type “C”
C Plaster Board (Blue Board)
FSK-G
Type “G” Plaster Board (Blue Board) – Not Available
Frequently
q
y Asked Q
Questions
Understanding UL
What does it mean to say
y that a p
particular wall or
ceiling system has achieved a 1-hour fire rating?
Q.
What does it mean to say that a particular wall
or ceiling
ili system
t
h
has achieved
hi
da1
1-hour
h
fi
fire
rating?
A.
It passes ASTM E119 ffor att least
l
t 60 minutes.
i t
Understanding UL
When constructing a fire-rated wallboard partition, must the exact
stud
t d size
i specified
ifi d iin th
the ttested
t d design
d i b
be utilized?
tili d?
Q.
When constructing a fire-rated wallboard
partition,
titi
mustt the
th exactt stud
t d size
i specified
ifi d in
i
the tested design be utilized?
A.
S
Specified
ifi d wood
d or steel
t l stud
t d sizes
i
are
minimums unless otherwise stated in the
d i
design.
Understanding UL
Myy fire rated design
g was tested with nails. Can I
fasten the wallboard with screws rather than nails?
Q.
My fire rated design was tested with nails. Can I
fasten the wallboard with screws rather than nails?
A.
Yes, screws can be used as an alternate to nails in
wallboard designs.
They must be substituted one-for-one when the
head diameter,
diameter length and spacing equal or
exceed the requirements for the specified nails.
Understanding UL
Can I add glass fiber insulation to a fire rated partition design when it is not
specified
ifi d as a component?
t?
Q.
Can I add glass fiber insulation to a fire rated partition
design when it is not specified as a component?
A.
Yes,, glass
g
fiber insulation of a thickness not exceeding
g the
depth of the stud is OK to add to the wall stud cavity.
Yes, for 1-hour
Yes
1 hour rated G500
G500, L500 and P500 series floor
floorceiling assemblies, fiberglass insulation may be added to
the plenum or joist space above the gypsum wallboard
provided an additional layer of gypsum wallboard is added
to the assembly.
Understanding UL
What is the difference between “Regular”
g
and Type
yp
“X” gypsum wallboard?
Q.
What is the difference between “Regular” and Type “X”
gypsum wallboard?
A.
“ Xt ” fifire resistant
“eXtra”
i t t
Type “X” wallboard, which is typically required to
achieve
hi
fifire resistance
i t
ratings,
ti
is
i formulated
f
l t d by
b adding
ddi
noncombustible fibers to the gypsum.
g y of the core as
These fibers help maintain the integrity
shrinkage occurs, providing greater resistance to heat
transfer during fire exposure.
Understanding UL
What is the fire rating
g for 5/8” Type
yp “X” Wallboard?
Q.
What is the fire rating for 5/8” Type “X” Wallboard?
A.
5/8" Type “X”
5/8
X Wallboard has no fire rating
rating.
Fire ratings are assigned to a complete assembly that
yp “X” wallboard as a component.
p
mayy include 5/8" Type
Understanding UL
Thi
Things
tto R
Remember
b
• First 10 pages
g on table
• Numbering
• Assemblies
 U 465
 U 411
 P 533
Understanding UL
L
Learning
i Objectives
Obj ti
The Design Professional will now be able to:
• Find UL designs on-line
• Explain the difference between the three UL Volumes
• Understand Fire Rated Assemblies
• Explain how to use Volume 1
• Explain how the first 10 pages of Volume 1 can help
• List
Li the
h fire
fi resistant
i
properties
i off gypsum
• Define what gypsum calcination is
• Analyze 3 UL designs
• Discuss FAQ’s
Understanding the UL
Fire Resistance Directories
Understanding the UL Fire Resistance Directories
Mundise Mortimer
National Gypsum Company
2001 Rexford Road
Charlotte, NC 28211
704-365-7494
MMortimer@nationalgypsum.com
Please note: you will need to complete the conclusion
quiz online at ronblank.com to receive credit
www.nationalgypsum.com
An AIA Continuing Education Program
Credit for this course is 1 AIA/CES HSW Learning Unit
Course Number: NGC09D