Barrier Management Symposium - FCIA · 2019. 11. 21. · •Simple Test @ 1850o F •13” x 13”...
Transcript of Barrier Management Symposium - FCIA · 2019. 11. 21. · •Simple Test @ 1850o F •13” x 13”...
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Barrier Management
Symposium
Nestor Sanchez, USG Corporation
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Learning Objectives
1. Explore the gypsum mineral and its impact on fire
resistance in a systems basis
2. Understand the different types of gypsum core and their
relation to fire resistance
3. Construction details & repair methods for gypsum panels
4. Innovative Technology
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Fire Containment – Compartmentalize
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Gypsum Mineral
• Calcium Sulfate
• CaSO4.2H2O
• 20% water by weight
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Gypsum Mineral
• ASTM E 119 2hr. 1850 oF
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Gypsum Mineral
1” back 950o F
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Gypsum Mineral
2” back 220o F
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Gypsum Mineral
4” back 180o F
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Gypsum Mineral
6” back 130o F
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Hose Stream Test - Exposed Side
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Cold-Formed Steel Background
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1 to 4 Hour Ratings
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Gypsum Core Types
Three (3) Types of Gypsum Cores
• Regular Core
• Type X
• Type C
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• Simple Test @ 1850o F
• 13” x 13” x 5/8” Panels
• Regular, Type X & Type C Panels
• 12lb - 9oz. loading
Panel Strength Comparison
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Significance of Test
• Type X core Type C core
• Specify board type per UL design
• Specified panel must be installed
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Floor-Ceiling Prior to Test
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GA-605 – Gyp. Panel Products for use in UL Classified Systems
• Free to download
• www.gypsum.org
• Gyp. Mfg. UL Type & Product Name
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GA-605 Type “C”: Ex. Mfg. Name & UL Type
• American Gypsum: AG-C
• CertainTeed: ProRoc Type C
• GP: Type 5
• LaFarge: Type LGFC-C/A
• National Gypsum: Type FSW-C
• Pabco: Type PG-C & Type C
• Temple-Inland: Fire Rated Type TG-C
• USG: Type C* not all mfg.’s “C” core panels listed. See mfg.
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GA-605 Type “X” : Ex. Mfg. Name & UL Type
• American Gypsum: Type AGX-1, AGX-11
• CertainTeed: ProRoc Type X
• GP: Type 9
• LaFarge: Type LGFC6A
• National Gypsum: Type FSW
• Pabco: Type PG-11
• Temple-Inland: Fire Rated Type X
• USG: Type SCX* not all mfg.’s “X” core panels listed. See mfg.
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INSTALLATION OF 2 HR WALL
Click to start animation
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Orientation of Gypsum Panels on Walls
Perpendicular to the studs (horizontally
applied)
Parallel to the studs (vertically applied)
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Orientation of Gypsum Panels on Walls
•Conventional studs (minimum 25
gauge)
•Light gauge studs (equivalent
thickness)
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Orientation of Gypsum Panels on Walls
On Conventional Studs
•Vertical application – Standard
•Horizontal application – Referenced in the IBC
and GA 600 – Based on an old test
•Achieved by most wallboard manufacturers at
UL
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Orientation of Gypsum Panels
On Light Gauge Studs
•Vertical application – Standard - Most
manufacturers
•Horizontal application – Only achieved at UL
with certain manufacturers
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Fire PerformanceLight Gauge Steel Stud Construction – UL U419
1-hr Rated System Horizontal Without Backing
▪ Perpendicular (horizontal) installation
with aligned horizontal joints
• Top-down construction
▪
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Repair Gypsum Panels
• Incidental Tears
• Small Indentation
• Fractured Core
• “Crease in Panel”
• Back Paper Damage
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Repair Small Holes
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Repair Large Holes
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FLUSH PATCH - SMALL
ELEVATION
EXISTING GYPSUM
PANEL
STUD
CUT-OUT 6 “ MAX.
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FLUSH PATCH - SMALL
INSTALLATION DETAILS
PATCH
EXISTING GYPSUM PANEL
EXISTING GYPSUM PANEL
RUNNER
TYPE S SCREW
AA
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SECTION A-A
RUNNER
EXISTING GYPSUM
PANEL
EXISTING GYPSUM
PANEL
TAPE & FINISH WITH USG
FINISH SYSTEM
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FLUSH PATCH - LARGE
PARTIAL ELEVATION - 1
EXISTING GYPSUM
PANEL
LINE OF PATCH
REMOVALSTUD
STUD
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FLUSH PATCH - LARGE
PARTIAL ELEVATION - 2
LINE OF PATCH
REMOVAL
SEE DETAIL 714
USE METAL RUNNER FOR BLOCKING
EXISTING
GYPSUM
PANEL
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FLUSH PATCH - LARGE
DETAIL 714
STUD
SELF-TAPPING METAL SCREW
RUNNER
EXISTING GYPSUM PANEL
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FLUSH PATCH - LARGE
PARTIAL ELEVATION - 3
STUD
STUD
TAPE & FINISH JOINTS
TYPE S SCREWS
TYPE S SCREWS
PATCH
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Innovations
• Mold – Resistant Boards
• Lightweight Gypsum Panels Regular Core
• Lightweight Gypsum Panels
• Dust Control Joint Compound
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Resources
• U.L. Fire Resistance Directory
• Gypsum Association
• Manufacturers’ Catalogs
• Technical Websites
– UL Ultimate Fire Wizard
– GA Association – gypsum.org
– Steel Framing Alliance – steelframing.org
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Barrier Management
Symposium
Nestor Sanchez, USG Corporation