Fire Protection in Non-Residential Buildings · Fire Protection in Non-Residential Buildings Scott Lockyear, PE Program Education Credit Information Wood Products Council via Canadian

Fire Protection inNon-Residential BuildingsNon-Residential Buildings

Scott Lockyear, PE

Program Education Credit Information

Wood Products Council via Canadian Wood Council and the Wood Solutions Fair is a Registered Provider with The American Institute of Architects Continuing Education Systems. Credit earned on completiong y pof this program will be reported to CES Records for AIA members. Certificates of Completion for non-AIA members are available on request.

This program is registered with the AIA/CES for continuing professionalThis program is registered with the AIA/CES for continuing professionaleducation. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product Questions related to specificdealing in any material or product. Questions related to specificmaterials, methods, and services will be addressed at the conclusion of this presentation.

Learning Objectives

1. Develop understanding of fire rated assemblies and fire protection

2. Develop understanding of how fire protection can effect building size

Presentation Overview– Basic Principles of Fire Protection

• When are exterior fire rated walls needed?• When are interior rated assemblies required?• When are interior rated assemblies required?• Resources for rated floor and wall assemblies.• Draft Stoppingpp g• Fire Blocking• When are Sprinklers Required

Fi W ll• Fire Walls– How does fire protection effect building size

• Open Frontage• Open Frontage• Sprinklers• Unlimited Building Size

– Recap

Basic Principles Exterior Rated Walls

– Basic assumption is that fires begin at the interior and rated wall assemblies are not required for the exterior

Fire

InteriorProtection on Inside of Building

Exterior

Building

Basic Principles Exterior Rated Walls

– When proximity to other buildings decreases fire protection is needed on the building exterior

Lot Line

Interior< 30’

Exterior

Fire Protection on Exterior When < 30’

Exterior Rated Assemblies

– Table 602 establishes requirements– For structures separated by 10’-30’ they are typically 0 or 1For structures separated by 10 30 they are typically 0 or 1

hour rated

FIRE�SEPARATION� TYPE�OF� OCCUPANCY�GROUP� OCCUPANCY�GROUP�F� OCCUPANCY�GROUP�A,�B,�

TABLE�602FIRE�RESISTANCE�RATING�REQUIREMENTS�FOR�EXTERIOR�WALLS�BASED�ON�FIRE�SEPARATION�DISTANCEa,�e

DISTANCE�=�X�(feet) CONSTRUCTION H 1,�M,�S�1 E,�F�2,�I,�R,�S�2,�Ub

X�<�5c All 3 2 15�<�X�<10 IA 3 2 1

Others 2 1 1Others 2 1 110�<�X�<�30 IA,�IB 2 1 1d

IIB,�VB 1 0 0Others 1 1 1d

X > 30 All 0 0 0X�>�30 All 0 0 0For�SI:�1�foot�=�304.8�mm.a.�Load�bearing�exterior�walls�shall�also�comply�with�the�fire�resistance�rating�requirements�of�Table�601.b.�For�special�requirements�for�Group�U�occupancies�see�Section�406.1.2c.�See�Section�705.1.1�for�party�walls.d. Open parking garages complying with Section 406 shall not be required to have a fire�resistance rating.e.�The�fire�resistance�rating�of�an�exterior�wall�is�determined�based�upon�the�fire�separation�distance�of�the�exterior�wall�and�the�story�in�which�the�wall�is�located.

d.�Open�parking�garages�complying�with�Section�406�shall�not�be�required�to�have�a�fire resistance�rating.

Basic Principles Interior Rated Walls

– Walls and floor systems need to have resistance to fires that occur inside a structure. Level of protection is based on

lti l f tmultiple factors.

Fire

InteriorProtection on Inside of Building

Exterior

Building

Key Considerations

– Protected or Unprotected Structural Members• Are structural members potentially exposed to flames.

– Building Type I-V• Are the structural members considered Non-Combustible or

Combustible– Amount of Protection Provided

• Unrated gypsum walls and floors• One hour wall and floor assemblies• Two hour rated assemblies

Protected vs. Unprotected

• The 2006 IBC has category A and B or Protected and Unprotected, respectively.

• What makes wood protected or Type A?

• Fire rated gypsum sheathing on walls and floor/ceilingson walls and floor/ceilings

• Unprotected buildings, type B would be exposedB, would be exposedmembers that do not fall under Type IV Heavyyp yTimber Construction.

Protected Wood Construction

• Typical structures include offices, and schools.Walls and ceilings are gypsum drywall with aWalls and ceilings are gypsum drywall with arated assembly.

SchoolsOffices

Schools

Unprotected Wood Construction

• Often restaurants and warehouses do not have structural membersstructural memberscovered in drywall.

WarehousesWarehousesRestaurants

Building Types

• The 2006 IBC allows for five types of construction.construction.

• Types I and II are generally non-combustible materials such as concrete.

• Types III-V are generally combustible such as wood.

• Generally the less combustible the larger square footage and number of stories allowed.

Rated Interior Assemblies

– Given a building type we can determine the level of protection neededprotection needed.

TYPE�IVA B Ae B Ae B HT Ae BBUILDING��ELEMENT

FIRE�RESISTANCE�RATING�REQUIREMENTS�FOR�BUILDING�ELEMENTS�(hours)TABLE�601

TYPE�VTYPE�IIITYPE�IITYPE�I

Bearing�walls�Exteriorg 3 2 1 0 2 2 2 1 0�Interior 3b 2b 1 0 1 0 1/HT 1 0Nonbearing walls andNonbearing�walls�and�partitions�Exterior

Nonbearing�walls�and�

partitions Interiorf 0 0 0 0 0 0

See�Section�602 4 6 0 0

See�Table�602

partitions��Interior 0 0 0 0 0 0 602.4.6 0 0Floor�construction�Including�supporting�beams�� 2 2 1 0 1 0 HT 1 0Roof�constructionIncluding supporting beams 1 1/2c 1c,�d 1c,�d 0c,�d 1c,�d 0c,�d HT 1c,�d 0�Including�supporting�beams�� 1�1/2 1 1 0 1 0 HT 1 0

Rated Interior Assemblies

– Except in Group F-1, H, M and S-1 occupancies Fi t ti f t t l b h ll t b– Fire protection of structural members shall not berequired, where every part of the roof construction is 20 feet or more above any floor immediately below.20 feet or more above any floor immediately below.

Type I and II Construction & Wood

– Examples where FRT wood may be utilized;

N b i t i llFIRE�RESISTANCE�RATING�REQUI

• Non-bearing exterior wallswhere no fire rating is req’d.

• Non-bearing partitions where the fire rating is 2

A BBearing�wallsExteriorg 3 2

BUILDING��ELEMENTTYPE�I

where the fire rating is 2hours or less.

• In some cases roof construction including

Exterior 3 2Interior 3b 2bNonbearing�walls�and�partitions�Exterior

ggirders, trusses, framing, and decking.

– Heavy Timber roof framing


partitions��Interiorf 0 0Floor�constructionIncluding supporting beams 2 2

may be utilized for rating requirements one hour or less in Type II and Type IB

Including�supporting�beams�� 2 2Roof�construction�Including�supporting�beams�� 1�1/2c 1c,�d

yp yp

Rated Interior Assemblies – Type III

– For type III construction t i ll d

TYPE�IIIexterior walls are assumedto be non-combustible.

– Floors may be combustible

Ae BBearing�walls�Exteriorg 2 2I i 1 0

BUILDING��ELEMENT

allowing the use of wood.– FRT wood may be utilized

in exterior walls required

Interior 1 0Nonbearing�walls�and�partitions�Exterior

in exterior walls requiredto have a fire rating of 2 hours or less.

– Roof may be Type IV or


partitions��Interiorf 0 0Floor�constructionI l di ti b 1 0– Roof may be Type IV or

fire rated construction when required.

Including�supporting�beams�� 1 0Roof�construction�Including�supporting�beams�� 1c,�d 0c,�d

Type IV - Rated Interior Assemblies

– In a variety of ways the building code does recognize the ability for Heavy Timber to resist fires through charring.

Type IV - Rated Interior Assemblies

• Walls are to be non-Walls are to be noncombustible.

• The IBC has published minimum sizes for aminimum sizes for astructure to be Heavy Timber.

• Detailed provisions available from AWC and APA.

Type V - Rated Interior Assemblies

Type V is primarily wood eTYPE�V

– Type V is primarily woodconstruction.

– Examples where wood b tili d i l d

Ae BBearing�walls�Exteriorg 1 0

BUILDING��ELEMENT

may be utilized include:• Rated wall and floor

framing and sheathing in protected construction

Interior 1 0Nonbearing�walls�and�partitions�ExteriorNonbearing walls andprotected construction.

• Unrated walls and floors with or without sprinklers* *No allowable area increase


partitions��Interiorf 0 0Floor�constructionIncluding supporting beams 1 0No allowable area increase.

• Unrated or one hour rated roofs.

Including�supporting�beams�� 1 0Roof�construction�Including�supporting�beams�� 1c,�d 0

Typical Rated Assemblies

• Where rated assemblies are required the qIBC allows various methods for approval.

• Tested assemblies – tested in accordance with ASTM E119

• IBC Deemed to comply tablesC l l t d Fi R i t (C t Additi• Calculated Fire Resistance (Component AdditiveMethodologies)

Tested Assemblies – DCA3

• Testing Agenciesg g• American Wood

Council has acceptedCouncil has acceptedwood floor and wall assemblies in theirassemblies in theirfree publication DCA3.

• www awc org• www.awc.org

Tested Assemblies – W305

• APA has acceptedpwood floor and wall assemblies in their free publicationW305.

• www.apawood.org

Typical Wall Assembly Attributes

Example: To achieve a one hour rating from one sidehour rating from one sideDCA 3 Assembly WS6-1.52x6@16” o c– 2x6@16” o.c.,

– R-19 Fiberglass-insulation, – 5/8” Type X Gypsum

Wallboard,– 2-1/4” Type S screws at 12”

o.c.

U.L. DESIGN U356*

*1 hr. load bearing exterior wall assembly

Typical Floor Assembly Attributes

Example: To achieve a one hour rating from thebottom side.

– I-Joists at 24”o.c.– Two layers 1/2” Gypsum

Wallboard,– 1-1/4” Type S screws

at 12” o.c.,– See WIJ-1.6 for complete information.

Typical Floor Assembly Attributes

• For plated floor trusses Wood Truss Council has details available.details available.

• www.sbcindustry.com

IBC tabulated assemblies

• IBC has multiple assemblies that are included directly in the code.

• This includes wall, floor, and roof assemblies• Detailed descriptions are available in Tables

720.1(1), 720.1(2), and 720.1(3)

IBC tabulated assemblies

• Example: 2x4 Interior one hour wall with 5/8”a p e te o o e ou a t 5/8Type X Gypsum.

4 3 2 1

MINIMUM�FINISHED�THICKNESS�

FACE�TO�FACEb�(inches)ITEM�

hour hour hour hour14.Wood�studs—interior�partition�with�gypsum

14�1.3

2"�x�4"��wood�studs�24"�on�center�with�5/8"�Type�X�gypsum�wallboarde�applied�vertically�or�horizontally�nailed�with�6d�coolern�or�wallboardn nails at 7" on center with end

� � � 4�3/4"

CONSTRUCTIONNUMBERMATERIAL

gypsum�wallboard�each�side

wallboardn�nails�at�7"�on�center�with�end�joints�on�nailing�members.�Stagger�joints�each�side.

Component Additive Method

• IBC 703.3 allows engineering analysisg g ybased on a comparison of building element designs having fire-resistance ratings as g g gdetermined by the test procedures set forth in ASTM E 119.

Component Additive Method

• Included in Chapter 7 of IBC• Also in DCA 4 available at www awc org• Also in DCA 4 available at www.awc.org.

• Example:• ½” Gypsum will

id 15 i tprovide 15 minutes of resistance.

Wood Structural Members

• In addition to sheathing structural members have resistance to fire.resistance to fire.

Sample 1 Component Additive Analysis

• Assume a 1 hour rated wall is required.• A 2x4 stud wall has 20 minutes of resistanceA 2x4 stud wall has 20 minutes of resistance• 5/8” Type X has a capacity of 40 minutes• Note: Fire is assumedNote: Fire is assumed

to be from one side ofthe wall.


• Assume a 1 hour rated wall is required.• A 2x4 stud wall has 20 minutes of resistance• A 2x4 stud wall has 20 minutes of resistance• A single layer of ½” is insufficient• Adding an additional• Adding an additional

layer of 1/2” Type Xwill give a one hourwill give a one hourwall.

• 20+15+25=60 min.


• Assume a 1 hour rated wall is required.q

• In lieu of the single ½” layer mineral wool batt yinsulation may be utilized.


• When are exterior fire rated walls needed• When are interior rated assemblies required?• When are interior rated assemblies required?• Resources for rated floor and wall assemblies.• Fire Blockingg• Draft Stopping• When are Sprinklers Required


• Open Frontage• Open Frontage• Sprinklers

– Heavy Timber Constructiony– Recap

Fire Blocking – Where is it needed?

• 717.2 of the IBC requires that in combustibleconstruction fireblocking shall be installed to cutconstruction, fireblocking shall be installed to cutoff concealed draft openings (both vertical and horizontal) and shall form an effective barrier )between floors, between a top story and a roof orattic space.

• Fire blocking will slow the spread of not only smoke but flames.

• Further detail is provided in the IBC e.g. architectural trim & double stud walls.

Fire Blocking

• Some areas that will be discussed include:• Concealed wall spaces• Stairs• Stairs• Connections between floors and walls.

Fire Blocking – Concealed wall spaces

• Fireblocking shall be provided in concealed spaces of stud walls and partitions, including furred spaces, and parallel rows of studs or staggered studs as follows:staggered studs, as follows:

• Vertically at the ceiling and floor levels. • Horizontally at intervals not exceeding 10 feetHorizontally at intervals not exceeding 10 feet

Vertically at the ceiling and floor levels

FIRE BLOCKING AT FLOOR/CEILINGSPACES

Rated Floor Ceiling

Rated Wall

FIRE BLOCKING AT VERTICAL SPACES

Rated Wall

Fireblocking - Multi Story

• Typically 2x plates act as fireblock atact as fireblock atfloor/ceiling interface and provide 10’ break.

Fire Blocking – Concealed Spaces

• For balloon framed walls vertical firewalls vertical fireblocking is required in addition to horizontal fire blocking to resist fire intrusion intofire intrusion intothe floor or wall cavitycavity

Concealed wall spaces

• At dropped ceilings fire bl ki i dblocking requiredhorizontallybetween studsbetween studs



• Where penetrationsoccur a fire stop i i dis required;

• Plumbing, electrical HVACelectrical, HVAC

Ceilings and Openings in Floors

• Fire stop providedFire stop providedat masonry fireplace projectingp p j gthrough floor.

Fire Blocking - Stairs

• Fire blocking is required at top andrequired at top andbottom of stairs.

Typical Fire Blocking

• Nominal 2” Lumber (1-1/2” actual width)• 2 layers nominal 1 x lumber• 2 layers nominal 1 x lumber• 23/32” Wood Structural Panels or ¾”

Particleboard lapped at seamsParticleboard lapped at seams• ½” gypsum• Mineral Wool or Fiberglass Insulation• Mineral Wool or Fiberglass Insulation• Other (some engineered rim boards)

Draft Stopping – Where is it needed?

• In combustible construction, draftstopping shall be installed to subdivide floor/ceiling assemblies in theinstalled to subdivide floor/ceiling assemblies in thelocations prescribed in Sections 717.3.2 through 717.3.3.

• Draftstopping is intended to restrict the flow of air.

Draft Stopping – 1000sf limit

• Draftstopping shall be installed so that horizontal floor areas do not exceed 1,000 square feet.floor areas do not exceed 1,000 square feet.

Draft Stopping – Dropped Ceiling Draft Stopping – Plated Floor Trusses

Draft Stopping – Roof Framing

• Draftstopping in attics shall limit concealed spaces to 3,000sf or less.spaces to 3,000sf or less.

• In groups R-1 and R-2 tenant and sleeping area separations are typically required.p yp y q

Draft Stopping – What can be used?

• 717.3.1 Draftstopping materials shall not be less than;than;

• 0.5-inch (12.7 mm) gypsum board, • 0.375-inch (9.5 mm) wood structural panel, • 0.375-inch (9.5 mm) particleboard, • 1-inch (25-mm) nominal lumber, • cement fiberboard, batts or blankets of mineral wool or

glass fiber, or other approved materials adequately supported.supported.

Sprinkler Requirements

• The 2006 IBC in many instances will require sprinklers although it typically will not require asprinklers although it typically will not require agiven type of building to have sprinklers.

• Be aware of local and state requirements!q• When structures increase in size the IBC may

require automatic sprinklers. Provisions are in section 903.

Sprinkler Requirements

• [F] 903.2.2 Group E.• An automatic sprinklerAn automatic sprinkler

system shall be provided for Group E occupancies asoccupancies asfollows:

• Throughout all Groupg pE fire areas greater than 20,000 square feetfeet.

Fire Walls

• While the code does not explicitly require fire walls in some cases it may be utilized to expandwalls in some cases it may be utilized to expandthe allowed size of a building.

• Section 705.3 requires that fire walls shall be of qany approved noncombustible materials.

• Exception: Buildings of Type V construction.

• Common example is in multi familyis in multi-family

Fire Walls

• Depending on the Group type the rating for fire walls shall be impacted.walls shall be impacted.

• In many cases 2 hour walls are acceptable for Type V construction with untreated wood.yp

FIRE�RESISTANCE�RATING�FIRE�WALL�FIRE�RESISTANCE�RATINGS

TABLE�705.4

GROUP (hours)

A,�B,�E,�H�4,�I,�R�1,�R�2,�U 3a

F�1 H�3b H�5 M S�1 3F�1,�H�3b,�H�5,�M,�S�1 3

H�1,�H�2 4b

F�2,�S�2,�R�3,�R�4 2W ll h ll b l h 2 h fi i d ha.�Walls�shall�be�not�less�than�2�hour�fire�resistance�rated�where�

separating buildings of Type II or V construction.

Fire Walls – SF Increase Example

– Assume an 18,000 sf building is desired.– In type VB construction the maximum square– In type VB construction the maximum square

footage is 9,000sf.– Adding a 2 hour rated fire wall separating theAdding a 2 hour rated fire wall separating the

structure would allow 18,000sf.

M Si T VB M Si T VB /fi ll

9,000sf

Max Size Type VB Max Size Type VB w/firewall

9,000sf 9,000sf9,000sf 9,000sf 9,000sf

Fire Walls - Openings

• Per IBC 705.8 each opening through a fire wall shall not exceed 120sf. The aggregate width ofshall not exceed 120sf. The aggregate width ofopenings at any floor level shall not exceed 25 percent of the length of the wall.

• Exceptions:• Openings are not permitted in party walls constructed

in accordance with Section 705.1.1.• Openings shall not be limited to 120 square feet

where both buildings are equipped throughout with anwhere both buildings are equipped throughout with anautomatic sprinkler system installed in accordance with Section 903.3.1.1.

Fire Walls

• Example of allowable openings.• Maximum total opening length = 12.5’Maximum total opening length 12.5• If we had an 8’ tall opening the maximum

opening size would be 100sf < 120sf.p g

12.5’ Protected Opening

10’

p g

50’


• When are exterior fire rated walls needed• When are interior rated assemblies required?• When are interior rated assemblies required?• Resources for rated floor and wall assemblies.• Draft Stoppingpp g• Fire Blocking• When are Sprinklers Required


• Open Frontage• Open Frontage• Sprinklers

– Recapp

Fire Provisions and Building Size

• Building codes allow the size of a structure to increase based on its level of non combustibilityincrease based on its level of non combustibilityand overall fire resistance

• Types I and II are considered non-combustibleyp• Type I often allows for an unlimited building size• Type II, III, IV and V will have varying degree of size

allowed based on:• Protected vs. Unprotected• Proximity to Other BuildingsProximity to Other Buildings• Use of Sprinklers

Building Size Example I

• Assume an office building is desired – Group BTYPE�OF�CONSTRUCTION

TYPE�I TYPE�II TYPE�III TYPE�IV TYPE�V

A B A B A B HT A B

HGT�(S)

For Type I 11 stories/UL sf is allowed

GROUP HGT�(feet) UL 160 65 55 65 55 65 50 40

B

S UL 11 5 4 5 4 5 3 2

A UL UL 37,500 23,000 28,500 19,000 36,000 18,000 9,000

• For Type I 11 stories/UL sf is allowed.• For Type II 4 stories/23,000sf is allowed.

F T III 4 t i /19 000 f i ll d• For Type III 4 stories/19,000sf is allowed.• For Type IV 5 stories/36,000sf is allowed.• For Type V 2 stories/9000sf is allowed.

Building Size Example I

• For wood frame construction why choose type B unprotected construction?unprotected construction?

• Going to protected (A) construction load bearing interior walls, floors and roofs would need to be one h t d i t f t Vhour rated in most cases for type V.

• Benefit of going to protected construction is an increase in number of stories and square footageincrease in number of stories and square footage

TYPE�IVA B A B A B HT A B

TYPE�II TYPE�III TYPE�VTYPE�OF�CONSTRUCTION

TYPE�IA B A B A B HT A B

HGT�(S)HGT�(feet) UL 160 65 55 65 55 65 50 40

S UL 11 5 4 5 4 5 3 2A UL UL 37 500 23 000 28 500 19 000 36 000 18 000 9 000B

GROUP

A UL UL 37,500 23,000 28,500 19,000 36,000 18,000 9,000B

Frontage Increase

• Allowable size of building may increase where open frontage is provided.

Frontage Increase

• If = [F / P – 0.25] W / 30• F = Building perimeter that fronts on a public way or g p p y

open space having 20 feet open minimum width (feet).

• P = Perimeter of entire building (feet).• W = Width of public way or open space (feet) in

accordance with Section 506.2.1. 0

30’

15’

30’ > 30’> 30’

> 25’

Frontage Increase

I [F / P 0 25] W / 3040’

15’

30’

• If = [F / P – 0.25] W / 30• For a 100’ x 60’ building

F 100’ 60’ 60’ 220’25’

• F = 100’ + 60’ + 60’ = 220’• P = 100’ + 100’ + 60’ + 60’ = 320’ • W = (30’*60’+25’*100’+30’*60’) / 220’ = 27 7ft• W = (30 60 +25 100 +30 60 ) / 220 = 27.7ft

• If = [220’ / 320’ – 0.25] 27.7/ 30 = 0.40• A = {A + [A x I ] + [A x I ] } (Equation 5 1)• Aa = {At + [At x If] + [At x Is] } (Equation 5-1)

Automatic Sprinkler System Increase

The area limitation in Table 503 is permitted to be increased by an additional

• 200 percent (Is = 2) for buildings with more than one story above grade planemore than one story above grade plane

• 300 percent (Is = 3) for buildings with no more than one story above grade plane.y g p

• These increases are permitted in addition to the height and story increases in accordance with Sectionincreases in accordance with Section504.2.

– Exceptions for Group H – High Hazard

Total Frontage & Sprinkler Increase

• For a multi-story unprotected office building; type IIIB construction:

• Tabulated area At is 19,000sf • Aa = {At + [At x If] + [At x Is] } (Equation 5-1)• Aa = {19,000 + [19,000 x 0.75] + [ 19,000 x 2] } • Aa = 71,250sf/story

• For type IIIA the same building would be:• Aa = {28,500 + [28,500 x 0.75] + [28,500 x 2] }

A 106 000 f/ t• Aa = 106,000sf/story

Total Frontage & Sprinkler Increase

• Height and Area Calculator at www.awc.org

Height Increase

• No height increase is allowed for open frontage• Height increases are allowed for automatic• Height increases are allowed for automatic

sprinklers.• 20’ Increase• One story increase

• Group R occupanciesp p• Can use NFPA 13R• Cannot exceed 4 stories or 60’

• Exceptions often occur for High Hazard Group and I-2

Height Increase

• How tall can a wood framed structure be?

• For type IIIA Group B the tabulated

i i 5maximum is 5stories.F t VA th• For type VA thetabulated maximum is 3 storiesis 3 stories.

• With sprinklers a 4 story wood framed building is allowed.

Common Examples Building Height

• For a 5 story sprinklered building;• Using type IIIA; B, F-2, H-3, I-1, M, R, S-2.Using type IIIA; B, F 2, H 3, I 1, M, R, S 2.• Offices, Assisted Living, Mercantile, and Residential

Common Examples Building Height

• For a 4 story sprinklered building;• Using type IIIA; A, E, F-1, H-5, I-4.Using type IIIA; A, E, F 1, H 5, I 4.• Examples include assembly areas, and schools.

Buildings – Unlimited Size

• Section 507 allows for some buildings to be unlimited in size.unlimited in size.

• Unlimited one story F-2 and S-2 unsprinklered are allowed if a 60’ buffer is provided.p

> 60’

> 60’> 60’

> 60’


• 306.3 F-2 Industrial uses that involve the fabrication or manufacturing offabrication or manufacturing ofnoncombustible materials with no significant fire hazard:significant fire hazard:• Brick and masonry, Ceramic products,

Foundries Glass products Gypsum IceFoundries, Glass products, Gypsum, Ice,Metal products (fabrication and assembly)

F-2 Industrial


• Type I, II, III, and IV buildings of B, M, and S Sprinklered may be one or two story.Sprinklered may be one or two story.

• A-4 - Indoor sporting event arena – 1 story only• B - BusinessB Business• M - Mercantile• S - Storage• S - Storage

Presentation Recap– Basic Principles of Fire Protection

• When are exterior fire rated walls neededBuilding proximity– Building proximity

• When are interior rated assemblies required?– Dictated by IBC based on construction type.

• Fire Blocking– Intended to slow passage of fire in combustible construction

• Draft Stoppingpp g– Prevents flow of smoke and air

• When are Sprinklers RequiredOften it is not required– Often it is not required

– Benefits occur with use of sprinklers• Fire Walls

– Used to separate structures and occupancies.

Presentation Recap– How does fire protection effect building size

• Open FrontageAllows for increases in square footage– Allows for increases in square footage

• Sprinklers– Allows for increases in # of stories, building height, and square

footagefootage• Unlimited Building Size

– Often by looking more deeply into code building sizes may i d ti ll i l di b i li it d i iincrease dramatically including being unlimited in size.

Questions/ Comments?

This concludes the: Presentation on Fire Protection of Non-Residential Buildings

• American Institute of Architects

Continuing Education Systems Program

Woodworksood orks org Phone 530 520 7966www.woodworks.org; Phone: 530-520-7966

Documents

Fire Protection in Non-Residential Buildings · Fire Protection in Non-Residential Buildings Scott Lockyear, PE Program Education Credit Information Wood Products Council via Canadian