perimeter fire barrier systems & joints product ... - Ncs-stl.com

PERIMETER FIRE BARRIER
SYSTEMS & JOINTS
PRODUCT & SOLUTIONS GUIDE
STI®
Specified
Technologies
Inc.

Products & Solutions
for Firestopping Joints &
Construction Gaps
When it comes to fire resistance testing and methodology, construction joints
and gaps have received a lot of much needed attention in recent years. New
test standards, changes in testing methods, test apparatus, and the codes
themselves can be a bit confusing for the specifier, installer, or building
inspector. STI prides itself on being a leader in this field and as a leader we
believe in providing more than just products. This is a solutions guide designed
to provide you with both the answers you need as well as some of the
questions that you may need to ask to make sure these critical areas are
sealed safely and effectively.
What Are Joints and Construction Gaps?
While virtually any linear opening in a building is generally referred to as a
joint, the industry as well as the codes have begun to differentiate according to
the nature of the opening and why it has been created as well as what it is
expected to do. The word joint implies movement and some gaps may be
created to allow for movement due to expansion and contraction, compression
and deflection of opposed structural members. Other factors such as seismic,
wind sway, and exposure to temperature changes and sunlight are also factors.
However, other openings may also be created that see little or no movement
and simply mark the line of demarcation between one building surface and
another. Whether the application has movement (dynamic) or has no
appreciable movement (static), STI has the systems and designs to help
architects, specifiers, and installers do the job right.
How Are These Openings Tested?
As we mentioned above, there have been a lot of changes in regards to testing
methods and standards. To the right we have provided a summary of
standards that relate to linear openings along with a short explanation of just
what they are intended to do. Space precludes our providing greater detail and
all of these standards have been subject to a great deal of activity that may
result in future revisions. We encourage you to consult the local authority
having jurisdiction for particular requirements. STI leads the industry in
innovative safety testing. We have indicated where appropriate, the testing
methods used in each application category.
Doing The Job Right!
Please remember that these test standards are generally limited in scope to
issues relating to fire resistance and movement capabilities. Achieving results
that match tested performance also requires proper installation techniques.
We have provided a few tips and pointers relating to the application of sealants.
We encourage you to consult ASTM C1193 Standard Guide For the Use of
Joint Sealants for additional helpful information that will greatly assist you
whether your function is to specify, install, or inspect these critical areas.
®
Innovating Means Being First!
First to Test & Classify...
• Curtain walls with vision glass.
• Head-of-Wall joints with fire proofed
roof deck.
• Head-of-Wall joints with fire
proofed flutes.
• Head-of-Wall with fire proofed
structural penetrants.
• Caulk & Walk Head-of-Wall solutions.
A Summary of Testing Methods Used to
Evaluate Rated Construction Joints and
Gaps
• ANSI/UL2079 (Tests for Fire Resistance of
Building Joint Systems) details movement
cycling and fire test methods for linear
openings. Recently revised to require 500
cycles (cpm) at 1 cpm for thermal, 10 cpm
for wind sway, and 100 cycles at 30 cpm
for seismic.
• ASTM E1966 (Test Method for Fire
Resistive Joint Systems) adopted in 1998
is similar to UL2079's fire testing methods.
• ASTM E1399 (Test Method for Cyclic
Movement and Measuring the Minimum
and Maximum Joint Widths of Architectural
Joint Systems) revised in 1997 is similar to
UL2079's revised cyclic movement testing.
• AC30 (Acceptance Criteria for Joint
Systems) ICBO ES acceptance criteria for
joint designs meeting the requirements of
Section 706 of the Uniform Building Code.
Matches the cycling requirements of
UL2079's latest revision.

STI SpecSeal Products for Joints & Construction Gaps...
Choose
The Right
Products
APPLICATION PERFORMANCE COSTS
Movement Installation
Application Material Clean Application Tack Free Cure Chem. In Service UL 2079 Ext./Comp. Material Production Installed
Method Base Up Temp Time Time Resist. Temp. Range Tested (+/-) Cost Rates Cost
Series ES Gun Grade Acrylic Water 40-95°F 2 Hours 5-7 Days Good ≤120°F (49°C) Yes ± 15% Best Better Better
Series AS Spray Grade Acrylic Water 60-90°F 2 Hours 1-2 Days Good ≤120°F (49°C) Yes ± 18.75% Better Best Best
Series PEN/ Gun Grade/
PEN (SL) Self-Leveling Silicone Min. Spirts (35)-140°F 5-9 Hours 10-14 Days Best ≤ 350°F Yes ± 50% Good Good Good
Grade
Series ES
Series AS
Latex-based gun grade
elastomeric coating
Series PEN
Latex-based, spray
applied elastomeric
coating
Single component,
neutral cure, premium,
highly elastomeric
silicone rubber
DESCRIPTION: Elastomeric Sealant
Color: Pale Blue Odor: Mild Latex
FEATURES & BENEFITS:
Elastomeric = Joint movement up to ±15%
Water based = Easy installation and clean up
Water resistant when cured = No reemulsification
Nonhalogenated = Safe
Thixotropic = High-build application
Autobonding = Good retrofit adhesion
No solvents, No asbestos = Safe
Tested to UL2079 = Meets new test standard
Acoustical Sealant = Reduced sound transmission
PACKAGING:
ES100 10.3 Oz. Caulk Tube (304 ml) 18 cu. in.
ES129 29 Oz. Caulk Tube (858 ml) 52 cu. in.
ES120 20 Oz. Sausage (592 ml) 36 cu. in.
ES105 5 Gallon Pail (19 liters) 1,155 cu. in.
MORE INFORMATION: Call STI "Facts On Demand"
(888-526-6800) and request document number 5032 to
receive your copy of the Series ES Product Data Sheet.
DESCRIPTION: Elastomeric Spray
Color: Pale Blue Odor: Mild Latex
FEATURES & BENEFITS:
Tested with direct - applied fireproofing
Elastomeric = Joint movement up to ± 18.75%
Water based = Easy installation and clean up
Water resistant when cured = No reemulsification
Spray applied = Fast application
Nonhalogenated = Safe
Thixotropic = High-build application
No solvents, No asbestos = Safe
Low abrasion = Longer pump life, Less tip wear
Tested to UL2079 = Meets new test standard
PACKAGING:
AS205 5 Gallon Pail (19 liters) 1,155 cu. in.
MORE INFORMATION: Call STI "Facts On Demand" (888-
526-6800) and request document number 5042 to
receive your copy of the Series AS Product Data Sheet.
DESCRIPTION: Silicone Sealant
Color: Concrete Odor: None
FEATURES & BENEFITS:
Premium silicone = Excellent long-term aging
Neutral cure = Odorless application
Excellent adhesion = Positive, long lasting bond
Highly elastomeric = Allows ±50% movement
Autobonding = Allows repairs & modifications
Tested to UL2079 = Meets new test standard
PACKAGING :
PEN300 10.3 Oz. Caulk Tube (304 ml) (Gun Grade)
PEN305 5 Gallon Pail (19 liters) (Gun Grade)
PEN305SL 5 Gallon Pail (19 liters) (Self-Leveling)
MORE INFORMATION: Call STI "Facts On Demand"
(888-526-6800) and request document number 5005 to
receive your copy of the Series PEN Product Data Sheet.
After spraying Series AS,
Series ES sealant may be
used to touch up or repair
the spray application
JOINTS

Perimeter Fire Barrier Systems
®
New Test Standards & Test Apparatus Help Put the SAFE in Safing!
Joint testing until recently has involved firestops installed between two
equally rated building surfaces. Since curtain walls either have no rating at
all or at best a rating that is lower than the adjacent floor, sealing the safing
area has been at best a matter of assumptions and a lot of guesswork.
Innovative testing has established STI as the leader in firestopping and
smoke sealing perimeter fire containment systems. Read on and we'll
show you why SpecSeal Series AS Elastomeric Spray is rapidly becoming
the product of choice for design professionals who care about the safety of
their buildings.
STI's Recommended Products...
SpecSeal Series AS Elastomeric Spray
is your best choice for effective and
economical sealing of safing areas.
AS adheres tenaciously to concrete,
foil, mineral wool, and most metals. It
applies rapidly and easily using airless
spraying equipment. Where required,
AS applies evenly on top of mineral
wool and won't soak in. Water-Based
(rather than water borne) means easy
application and cleanup with no
solvents required.
State-of-the-Art Systems...
Notice that we have mentioned the terms Perimeter Fire Barrier Systems
and Perimeter Fire Containment Systems rather than simply referring to
joints. That's because all of the elements of the floor and wall construction
as well as the safing slot are inter related in terms of the performance of
the assembly as a whole. The safing area will not perform any better than
the weakest of the adjacent construction elements. Thus the safing slot
must be tested as part of an assembly that is representative of the actual
field condition.
Compare systems and testing... STI conducted the industry's first test that
included exposed vision glass rather than a totally insulated curtain wall.
Call us and find out how we can help solve your design or applications
problems with solutions that are fully tested and approved.
Test Methods & Standards
For Perimeter Fire Barrier Systems:
Fire Resistance Testing:
UL and other major labs use testing based upon the
proposed standard for Testing Perimeter Fire Barrier
Systems (See I.S.M.A. test to the right).
Cyclic Movement: Assumed to be negligible in
most designs. Where indicated, tested to UL2079
and ASTM E1399.
PUTTING Perimeter Fire Barrier
Systems To The Test...
The I.S.M.A.
Based upon a flammability test for curtain walls
containing combustible components (UBC 26-9)
The Intermediate Scale Multi-Story Apparatus
or I.S.M.A. for short, was developed as a flame
spread test for flammable curtain wall constructions
(UBC 26-9) and has been adopted for use
in testing Perimeter Fire Barrier Systems.
Unlike a traditional ASTM E119 furnace test that
would expose only the underside of a concreteto-concrete
joint, the ISMA exposes not only the
floor/joint area to fire but is also designed to
simulate a fire that burns out the windows and
climbs the exterior wall of the building. The
joint is evaluated as a part of the perimeter
system including the curtain wall assembly.

All Tested Systems Include Windows... Don't They??
How Much Movement Occurs in a Safing Slot?
If you pay close attention in this brochure, you'll see very few references to joints when it
comes to curtain walls. As we mentioned, the word joints implies movement and when it
comes to curtain walls, most experts agree that very little movement actually occurs in the
safing area.
Over-estimating movement can lead to joint designs that overload mineral wool and stress
critical structural wall elements during a fire. STI's tested designs are based upon the
recommendations of experts and achieve the necessary balance between ease of installation,
protection of structural elements, and the expected movement within the safing area.
You might assume that since
windows are a standard
component of all curtain wall
designs, all tested systems
would naturally include them...
You would be wrong! STI has
published the first system that
incorporates non-insulated glass
vision panels.
Windows are well known to be
the achilles heal of the curtain
wall when it comes to fire
resistance. Most published
systems tested by third-party
labs incorporate totally insulated
spandrel panels and do not
include vision glass.
The inclusion of windows and
their position and spacing are a
major factor in the overall
performance of a perimeter fire
barrier system. Insulation and
safing systems designed for
assemblies that include windows
may be dramatically different
than test assemblies that lack
this critical element. Be sure to
check system wording carefully!
JOINTS

Head-of-Wall Systems
Head-of-Wall joints also referred to as "top-of-wall" joints can pose a
serious challenge to the firestopper. Once again STI comes to the
rescue with installer friendly products and designs that make a tough
job a lot easier.
STI's Recommended Products...Two compatible water based products let you
choose between the high-production rates of airless-spray application or the precision
of a caulk applied sealant for smaller jobs or tighter areas.
Series AS200 Elastomeric Spray is generally
recommended for larger openings where
caulking is impractical and some amount of
overspray can be tolerated. It is also our recommended
product for direct contact with fire proofing in certain
applications (See “Making The Case For Fire Proofing in
Joint Seals” to the right).
Series ES Elastomeric Sealant is recommended
for narrower joint openings between non-fire
proofed surfaces such as the gaps between
gypsum board walls and floor slabs or decks including
finger cut applications.
Comprehensive Systems Cover Your Applications...
STI has systems that cover virtually any application that you will encounter. Masonry
or gypsum walls, bare steel deck or fire-proofed decks, floor or roof decks...
STI has you covered on all these applications and a lot more.
Floor and roof decks do move... Make no mistake about it! Floor loadings above and
below a wall can cause serious deflection. Wind lift on roofs must be considered as
well. In these situations, don't be over-extended! STI has the systems with the
tested deflection and compression you need to keep the FLEX in flexible!
Compare systems and testing... STI conducted the industry's first testing that
included complete fire-proofing solutions including steel deck and support beams.
Easy to use products and great solutions make STI SpecSeal the complete
choice for Head-of-Wall applications.
Check out the wide variety of systems and solutions available from STI.
®
Closing the Gap Between Rated Walls and Floors or Roof Decks
Test Methods & Standards
For Head-Of-Wall Applications:
Fire Resistance Testing & Cyclic Movement
All systems meet the requirements of ANSI/UL2079
and are tested to 500 cycles @10 cpm
Making The Case For Fire Proofing in
Joint Seals...
We Can Make It Stick!
In a cooperative project Specified
Technologies Inc. and Grace Construction
Products have tested a series of designs
at Underwriters Laboratories Inc. (UL) that
replicate the normal use of fireproofing on
steel floor and roof decks and structural
members located adjacent to or
penetrating rated walls at the ceiling line.
A comprehensive battery of fire tests were
conducted by UL in accordance with
UL2079. In addition to fire testing, Grace
Construction Products evaluated the
adhesion of water-based SpecSeal®
Elastomeric Spray to Monokote MK 6 Fire
Proofing.
Systems have been tested with a variety of
conditions including fire-proofed structural
members penetrating at the ceiling line and
flutes filled with either mineral wool plugs
or fire proofing. See STI's Product &
Application Guide or the Technical Library
at www.stifirestop.com for complete
system information.

The BASICS of Joint Design
A Few Pointers to Help Maximize Sealant and Coating
Performance
®
Think about JOINT MOVEMENT up front. Very few joints are actually static. Windlift, deflection, thermal
expansion and contraction, as well as seismic conditions must be factored into the joint design.
Even the highest performance sealant or coating may fail in improperly designed or installed joints. Here
are a few points to help you maximize joint performance. Consult ASTM C1193 Standard Guide For the
Use of Joint Sealants for additional helpful information.
Typical Modes of Joint Failure
Know and avoid the pitfalls by careful PLANNING, PREPARATION, and APPLICATION!
Sealant bonds to the deflection track.
The wall may become load bearing.
Bond breaker prevents
adhesion to the track.
Adhesive Failure
Problem: Sealant
pulls away from
substrate.
Solution: Improve
bond by cleaning all
contact areas
Beware of Three Sided Adhesion
Bond breaker tapes, foam backer rods, even mineral
wool used properly can prevent cohesive failures!
WRONG!
RIGHT!!
Flexing the joint either tears the
sealant when extended or damages
the substrate when compressed.
Sealant stretches freely as
the joint is flexed.
Cohesive Failure
Problem: Sealant
tears when extended.
Solution: Choose a
more flexible joint
design.
Substrate Failure
Problem: Contact
surfaces fail due to
stress applied by
sealant.
Solution: Repair
substrate and/or
choose a more
flexible joint design.
Mineral Wool Orientation...
Sometimes It Pays To Go Against The Grain!
Mineral wool orientation can be critical in
rated designs. The ability to compress and
rebound allows joints to move and assures a
fit that starts and stays tight!
Oriented parallel to the
floor, mineral wool is
hard to compress and
has no rebound.
Oriented perpendicular
to the floor, mineral wool
can be compressed for a
tight fit and rebounds to
keep the seal tightly
closed.
JOINTS

Basic Spray Equipment
NOTICE: Spray application of SpecSeal ®
Elastomeric Firestop Spray requires airless spray
equipment meeting the following specifications:
Working Pressure: Min. 3,000 PSI
Delivery: Min. 1.0 U.S. gpm
(2.1 l/min.) recommended
Spray Tip Orifice: 0.023” to 0.026”
recommended.
Wetted Parts: All seals and contact
surfaces suitable for contact
with latex emulsions.
Fluid Lines: 3/8” minimum (1/2” preferred)
for up to 50’ hose length.
Consult pump manufacturer for
longer hose length or excessive
rise above pump level.
Misc. Equipment: Reversible cleaning spray
tips and hose swivels.
Consult pump manufacturer
or equipment distributor for
recommendations.
Joint Estimation Table
Need More Info Fast? Call STI "Facts on Demand"
What We Recommend Recommended Spray Equipment
Manufacturer
PUMP:
A 1 G.P.M. PUMP or higher is recommended in
order to satisfy higher production requirements
and to allow for larger hoses or tip sizes at the
higher end of the range.
A SPRAY UNIT CAPABLE OF SPRAYING BLOCK
FILLERS OR OTHER HEAVIER ARCHITECTURAL
COATINGS SHOULD BE ADEQUATE.
SPRAY TIP:
We recommend that the applicator use a new
0.023” spray tip. If higher production rates are
required and the pump can support it, the
larger tip size may be used.
FLUID LINES:
A minimum of 3/8” I.D. hose for up to 50’ runs
and 1/2” to 3/4” for longer runs. NOTE: Pump
discharge ports and all fittings must be minimally
as large as the hose in order to benefit
from increasing hose size.
STI Rep./Distributor:
The following airless spray equipment demonstrated
suitability for application of this product.
STI makes no warranties concerning the
suitability or use of this equipment and has
no affiliation of any kind with its manufacturer.
The following equipment is manufactured by
Titan Tool Inc., Franklin Lakes, NJ. Phone:
800-526-5362
Item Item Name &
Description
PowrTwin 3500 sprayer Electric or gas
powered
hydraulic drive
airless sprayer.
IMPORTANT NOTICE: AIRLESS SPRAY EQUIPMENT OPERATES AT VERY HIGH PRESSURES. PROTECTIVE CLOTHING, GLOVES, AND EYE PROTECTION ARE REQUIRED. CON-
SULT SPRAY EQUIPMENT MANUFACTURER FOR RECOMMENDATIONS CONCERNING THE SAFE USE AND HANDLING OF THIS EQUIPMENT. THOROUGHLY REVIEW MSDS AND
PRODUCT DATA SHEETS PRIOR TO PRODUCT USE.
JOINT
WIDTH
0.5
0.75
1.0
1.5
2.0
2.5
3.0
3.5
4.0
5.0
6.0
Per 1/8” Installed Depth Per 1/4” Installed Depth Per 1/2” Installed Depth Per 1” Installed Depth
CU.IN.
PER FT.
0.8
1.1
1.5
2.2
3.0
3.8
4.5
5.2
6.0
7.5
9.0
FT/GAL
308.0
205.3
154.0
102.7
77.0
61.6
51.3
44.0
38.5
30.8
25.7
GAL/
100 FT
0.3
0.5
0.6
1.0
1.3
1.6
1.9
2.3
2.6
3.2
3.9
CU. IN
PER FT
1.5
2.2
3.0
4.5
6.0
8.0
9.0
11.0
12.0
15.0
18.0
FT/GAL
154.0
102.7
77.0
51.0
38.0
31.0
25.0
22.0
19.0
15.0
12.0
GAL/
100 FT
0.6
1.0
1.3
2.0
2.6
3.3
3.9
4.6
5.2
6.5
7.8
CU. IN
PER FT
3.0
4.5
6.0
9.0
12.0
15.0
18.0
21.0
24.0
30.0
36.0
Look up the joint width in left hand column. Calculations for depths
ranging from 1/8” (0.125”) to 1” are provided. Stated values are for
caulking. To calculate spray requirements, add actual joint width +
overspray to determine JOINT WIDTH. Example: Actual joint width
=4”, overspray =1” on both sides. JOINT WIDTH in table would be
6”. For wider joints such as 8” joints, double the values shown in the
4” JOINT WIDTH estimation.
Consult factory for metric conversion assistance.
The following is a list of the document numbers for information on
the products in this brochure. Simply call our "Facts on Demand"
system, input the document numbers, then input your fax number
and they will be sent to you at once!
Product Data MSDS
Sheet
Series ES 5032 5033
Series AS200 5042 5043
Series PEN300 5005 5006
For a listing of the currently available system drawing simply
call "Facts on Demand" and have the directory faxed to you.
Call Today: 888-526-6800
FT/GAL
77.0
51.3
38.5
25.7
19.3
15.4
12.8
11.0
9.6
7.7
6.4
We’re the Firestopping
Specialists...
We’re STI.
STI ®
Specified
Technologies
Inc.
200 Evans Way • Somerville, NJ • 08876
(800) 992-1180 • Fax: (908) 526-9623
www.stifirestop.com
E-Mail: specseal@stifirestop.com
STI - 1213 REV5
Printed in U.S.A.
SpecSeal ® is a registered trademark of Specified Technologies, Inc. / UL is a registered trademark of Underwriters Laboratories, Inc. ® / Copyright 2000 STI. All rights reserved.
GAL/
100 FT
1.3
1.9
2.6
3.9
5.2
6.5
7.8
9.1
10.4
13.0
15.6
CU. IN
PER FT
6.0
9.0
12.0
18.0
24.0
30.0
36.0
42.0
48.0
60.0
72.0
FT/GAL
38.5
25.7
19.3
12.8
9.6
7.7
6.4
5.5
4.8
3.9
3.2
GAL/
100 FT
2.6
3.9
5.2
7.8
10.4
13.0
15.6
18.2
20.8
26.0
31.2
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H= Height
of Flute
▼
NOTE: For smaller jobs
a Titan Epic 660 High
Boy can be used with
the same basic spray
equipment.
L=Length of Joint
Joint
Amount in Cubic Inches for Each Side of Joint:
L= Length of Joint (ft) W= Width of Joint (in)
H= Height of flute (in)
Area of Flutes= (Lx 12 x H)/2=_______sq. in.
Area of Joint= L x 12 x W= _______sq. in.
Area of Overspray L x 12= _______sq. in.
Volume= (Area of flutes +
Area of Joint + Area of
Overspray) x .125*= _______sq. in.
* Based upon 1/8” (0.125”) wet coating thickness.
Remember to Multiply by Two for Both Sides
(1) 5 Gallon pail of SpecSeal ® Elastomeric Spray
contains 1,155 cubic inches.
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