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HEAD-OF-HEAD-OF-WALLSWALLS
Presenter-Brice MillerPresenter-Brice Miller 23 years as Building Official, Inspector 23 years as Building Official, Inspector
and Plans Examinerand Plans Examiner Past President of Colorado Chapter of Past President of Colorado Chapter of
International Code Council (ICC)International Code Council (ICC) ICBO Education and Certification ICBO Education and Certification
CommitteeCommittee ICC Board of International Professional ICC Board of International Professional
StandardsStandards ICC - IBC General Code Development ICC - IBC General Code Development
CommitteeCommittee Code Instructor for Front Range Code Instructor for Front Range
Community College (Part time) for 12 Community College (Part time) for 12 yearsyears
Program OutlineProgram Outline
Where firestopping is requiredWhere firestopping is required
Codes and StandardsCodes and Standards
Understanding Underwriters Laboratories Understanding Underwriters Laboratories
Different types of Head-of-wall jointsDifferent types of Head-of-wall joints
A look at Mechanical Joint SystemsA look at Mechanical Joint Systems
Plans examiner & Field inspector helpful Plans examiner & Field inspector helpful
hintshints
Why is Firestopping Why is Firestopping Required?Required?
To compartmentalize To compartmentalize
and prevent the and prevent the
spread of flame and spread of flame and
smoke through a smoke through a
structure during a structure during a
fire.fire.
Mandated by Codes Mandated by Codes
and Standardsand Standards
Where is Firestopping Required?
Perimeter ContainmentPerimeter Containment
Membrane PenetrationsMembrane Penetrations
Through PenetrationsThrough Penetrations
Construction JointsConstruction Joints
Five Types of Joint Five Types of Joint SystemsSystems
Bottom - of – WallBottom - of – Wall Floor – to – FloorFloor – to – Floor Floor – to – WallFloor – to – Wall Wall – to - WallWall – to - Wall Head – of - WallHead – of - Wall
A NEED FOR FIRE A NEED FOR FIRE RESISTIVE HEAD-OF-WALL RESISTIVE HEAD-OF-WALL
JOINTSJOINTS In a typical building In a typical building
there are more square there are more square feet of opening at Head-feet of opening at Head-of-Wall joints then there of-Wall joints then there are in through are in through penetrationspenetrations
MGM Grand Hotel MGM Grand Hotel One Meridian Plaza One Meridian Plaza First Interstate Bank First Interstate Bank North Ridge EarthquakeNorth Ridge Earthquake
International and other International and other Model Code Organizations Model Code Organizations
(MCO)(MCO) ICC – International ICC – International
Code Council Code Council (International (International Building Code)Building Code)
ICBO – ICBO – International International Conference of Conference of Building Officials Building Officials (Uniform Building (Uniform Building Code) Code)
BOCA – Building BOCA – Building Officials and Code Officials and Code Administrators Administrators (National Building (National Building Code)Code)
SBCCI – Southern SBCCI – Southern Building Code Building Code Congress Congress International International (Standard Building (Standard Building Code)Code)
WHERE REQUIREDWHERE REQUIREDAll top of wall joints to protect All top of wall joints to protect
the fire-rated assemblythe fire-rated assembly
Exit Enclosures 1019.1Exit Enclosures 1019.1 Shaft Enclosures 707.4Shaft Enclosures 707.4 Exit Passageways Exit Passageways
1021.31021.3 Horizontal Exits Horizontal Exits
1022.21022.2 Occupancy Occupancy
Separations 508.3Separations 508.3 Incidental Use Areas Incidental Use Areas
508.2508.2 Fire Walls 705.4Fire Walls 705.4
Fire Partitions 708.1Fire Partitions 708.1 Corridor walls Corridor walls
1017.11017.1 Sleeping units Sleeping units Control Areas 414.2Control Areas 414.2 Atrium Separations Atrium Separations
404.5404.5 Single-Occupancy Single-Occupancy
fire areas 706.3.9fire areas 706.3.9
CODE REQUIREMENTS -2006 IBCCODE REQUIREMENTS -2006 IBC
Section 713.1 Fire
Resistive Joint systems• “Joints installed in or
between fire resistance rated assemblies shall be protected by an approved fire-resistant joint system designed to resist the passage of fire for a time period not less than the required fire-resistance rating of the assembly in which it is installed.”
Section 713.2: InstallationSection 713.2: Installation
Fire-resistant joint Fire-resistant joint systems shall be systems shall be securely installed in or securely installed in or on the joint for its on the joint for its entire length so as not entire length so as not to dislodge, loosen or to dislodge, loosen or otherwise impair itsotherwise impair its ability to accommodate ability to accommodate expected building expected building movements movements and to and to resist the passage of resist the passage of fire and hot gassesfire and hot gasses
HEAD-OF-WALL FIRE HEAD-OF-WALL FIRE RESISTIVE JOINTSRESISTIVE JOINTS
Must accommodate structural Must accommodate structural compression and extensioncompression and extension
Maintain the Maintain the fire resistance fire resistance propertiesproperties of the wall and of the wall and roof/floor structure.roof/floor structure.
Be Be tested and listedtested and listed by an by an approved agencyapproved agency
Categories of Fire-Resistive Joints
Sealant Systems (Caulks)Sealant Systems (Caulks)
Sprayed /Elastomeric Membranes Sprayed /Elastomeric Membranes (Sprays)(Sprays)
Mechanical JointsMechanical Joints
Elastomeric Caulk or Spray
Roof or Floor Deck
Mineral Wool1/2”
Gypsum Wallboard
Steel Stud
Deep Leg Track
Load
Roof or Floor Deck
GypsumWallboard
OverlappingGypsum
Wallboard
Fire Rated Gypsum Compound
Mechanical joint
Steel Stud
1”
Movement takes place here
and here
GypsumWallboard
Fire Rated Gypsum Compound
Steel Stud
Roof or Floor Deck
Mechanical Joint
OverlappingGypsum
Wallboard
Load
U.L.2079
&A.S.T.M.E 1966
CYCLE TEST(MOVEMENT)
Furnace Test
(Hour Rating)
Hose Stream Test
(Impact/Temperature Shock)
Test Standards / ComponentsTest Standards / Components
UL Cycle Class ListingsUL Cycle Class ListingsMovemeMoveme
nt nt
ClassClass
Min.#Min.#
Of CyclesOf CyclesMin. Cycling Min. Cycling
RateRate
(Cycles (Cycles Minutes)Minutes)
Class lClass l
(Thermal)(Thermal)500500 1 1
Class llClass ll
(Wind (Wind Sway)Sway)
500500 1010
Class lllClass lll
(Seismic)(Seismic)100100
4004003030
1010
Composition of Mineral Wool
Movement Characteristics
of Fire Caulks or Sprays
Additional Components
Stud to Track Connection
Properties of Head-of-WallFire Resistive Deflection Joints
Where Can I Find The Most Where Can I Find The Most Current Listing?Current Listing?
http://www.ul.comhttp://www.ul.com
U.L. LISTINGS NOMENCLATUREU.L. LISTINGS NOMENCLATURE
HW-D-0060HW-D-0060
HW = Head of WallHW = Head of Wall
D = Dynamic (Subject to Movement)D = Dynamic (Subject to Movement)
0060 = Nominal Joint Width0060 = Nominal Joint WidthIf starts with “0” (0000 – 0999) = Nom. Joint width If starts with “0” (0000 – 0999) = Nom. Joint width << 2” 2”
If starts with “1” (1000 – 1999) = Nom. Joint width > 2” If starts with “1” (1000 – 1999) = Nom. Joint width > 2” and and << 6” 6”
Sample U.L. ListingSample U.L. Listing
System Number HW-D-????System Number HW-D-????
Assembly Ratings - 1 & 2 Hrs. (See Item 2)Assembly Ratings - 1 & 2 Hrs. (See Item 2)
Nominal Joint Width - 1 in.Nominal Joint Width - 1 in.
Class II Movement Capabilities –Class II Movement Capabilities –
18.75%Compression or Extension18.75%Compression or Extension
ACTUAL MOVEMENT IS 3/16”ACTUAL MOVEMENT IS 3/16”
COMPRESSIONCOMPRESSION OR OR EXTENSIONEXTENSION
U.L. U.L. LISTING/MECHANICALLISTING/MECHANICAL
System Number HW-D-0060 Assembly Ratings - 1, 2 & 3 Hrs. (See
Item 2) Nominal Joint Width - 1 in. Class II and III Movement Capabilities
- 100% Compression or ExtensionACTUAL MOVEMENT IS 1”COMPRESSION OR EXTENSION
Question to Ask!Question to Ask!
How much movement (compression
and/or extension) do I need?
FIRE TRAK
Everybody else
The First and Most Important)
NON CODE COMPLIANT NON CODE COMPLIANT HEAD-OF-WALL JOINTHEAD-OF-WALL JOINT
Listed and Tested Listed and Tested Head-of-Wall Head-of-Wall AssembliesAssemblies
View some details that will View some details that will perform structurally when perform structurally when
exposed to fire.exposed to fire.
SMOKE BARRIERSSMOKE BARRIERS Section 713. 6 of the IBC requires an L rating of 5 or Section 713. 6 of the IBC requires an L rating of 5 or
less. less.
Joints systems in these assemblies needs to be Joints systems in these assemblies needs to be designed and constructed to restrict the movement of designed and constructed to restrict the movement of smoke. The type of rating used is an L Rating which is smoke. The type of rating used is an L Rating which is a measurement of air leakage rate through a fire a measurement of air leakage rate through a fire resistive joint system or penetration.resistive joint system or penetration.
Plans Examiners and Inspectors
PLANS EXAMINERSPLANS EXAMINERS
As part of your plan review, As part of your plan review, are you checking the below are you checking the below items as it relates to the items as it relates to the Head-of-wall joints: Head-of-wall joints:
Determine the Determine the rate of building rate of building deflectiondeflection ( range of motion) ( range of motion)
Identify the tested and Identify the tested and listed head-listed head-of-wall systemof-wall system for every interior non for every interior non load baring partition. load baring partition.
RECOMMENDED RECOMMENDED CORRECTION NOTICECORRECTION NOTICE
Deflection and firestop tracks are required to be Deflection and firestop tracks are required to be installed with an approved joint system per installed with an approved joint system per section 713 of the IBC. The assemblies need to section 713 of the IBC. The assemblies need to be designed to allow head-of-wall joints to be designed to allow head-of-wall joints to compress and extend with movement of compress and extend with movement of structure above while maintaining the fire-structure above while maintaining the fire-rating of the assemblies. rating of the assemblies.
Please clarify building deflection to Please clarify building deflection to determine movement capabilities of determine movement capabilities of assembly and identify listed assemblies assembly and identify listed assemblies for these ceiling runners. for these ceiling runners.
HEAD-OF-WALL HEAD-OF-WALL INSPECTIONINSPECTION
IBC CODE REQUIREMENT IBC CODE REQUIREMENT
Section 109.3.6Section 109.3.6
Fire-resistant penetrations. Fire-resistant penetrations. Protection of jointsProtection of joints and penetrations and penetrations in fire-resistance-rated assemblies in fire-resistance-rated assemblies shall not be concealedshall not be concealed from view from view until inspected and approveduntil inspected and approved
Field InspectionField InspectionIf the deflection rate is If the deflection rate is under (1) one inchunder (1) one inch
you may not have to observe the top track you may not have to observe the top track until the final inspection. If a mechanical until the final inspection. If a mechanical joint is required you will need to: joint is required you will need to:
Be provided with the Be provided with the UL listedUL listed assembly as assembly as approved on the plans. approved on the plans.
Determine all interior Determine all interior non load baring partitions non load baring partitions that require a fire rating and inspect during that require a fire rating and inspect during framing inspection.framing inspection.
Observe the ceiling runner for the Observe the ceiling runner for the U.L label U.L label that that is located on the side of the mechanical joint is located on the side of the mechanical joint system. system.
Engineering JudgmentsEngineering Judgments
Sources:Sources: Third Party Labs (UL) Fire Protection Engineer Professional Engineer Manufacturer
Only used when tested systems are not available. The EJ’s Must be based on sound engineering practice and knowledge of both field application and capabilities of system components
HEAD-OF-HEAD-OF-WALLSWALLS
Call Brice Miller: 970-204-1431
Visit our website: www.firetrak.com
Email Brice: [email protected]
How can I or other associates learn more about head-of-wall
joints?
