2003 INTERNATIONAL BUILDING CODE MODIFIED FOR THE 2004 FLORIDA BUILDING CODE
						Supplement #. 1: Fire Protection

2003 International Building Code	2001 Florida Building Code	Proposed changes to the 2003 IBC/2004 FBC.	
Chapter 4: Special Detailed Requirements Based on Use and Occupancy	Chapter 4: Special Occupancy		
Section 403 High-Rise Buildings

403.3 Reduction in fire-resistance rating. The fire-resistance-rating reductions listed in Sections 403.3.1 and 403.3.2 shall be allowed in buildings that have sprinkler control valves equipped with supervisory initiating devices and water-flow
initiating devices for each floor.

403.3.1 Type of construction. The following reductions in the minimum construction type allowed in Table 601 shall be allowed as provided in Section 403.3:
1. Type IA construction shall be allowed to be reduced to Type IB.
2. In other than Groups F-1, M and S-1, Type IB construction shall be allowed to be reduced to Type IIA.
3. The height and area limitations of the reduced construction type shall be allowed to be the same as for the original construction type.
	SECTION 412
HIGH RISE BUILDINGS

§412.1 Scope

§412.1.1 These requirements shall apply to all buildings having floor surfaces used for human occupancy located more than 75 ft (22.9 m) above the lowest level of fire department vehicle access. All buildings having floor surfaces used for human occupancy located more than 75 ft (22.9 m) above the lowest level of fire department vehicle access shall be provided with an approved automatic sprinkler system in accordance with §412.10.

§412.11 Modifications permitted. When a complete approved automatic sprinkler system complying with §412.10 is provided, the following modifications of code requirements are acceptable:

6. In Type I construction the fire resistance of partitions, columns,
trusses, girders, beams and floors may be reduced by 1 hour, but no
component or assembly shall be less than 1 hour.	Please note that s.412 is not limited to Groups B and R occupancies.  This section was revised under the FBC to make it applicable to all high rise buildings.

Revise s. 403.3.1, IBC for consistency with s. 412.11, FBC as follows:   

403.3.1 Type of construction. The following reductions in the minimum construction type allowed in Table 601 shall be allowed as provided in Section 403.3:
1. Type IA construction shall be allowed to be reduced to Type IB.
2. In other than Groups F-1, M and S-1, Type IB construction shall be allowed to be reduced to Type II. In Type I-A construction the fire resistance ratings of partitions, columns, trusses, girders, beams and floors may be reduced by 1 hour, but no component or assembly shall be less than 1 hour.
3. The height and area limitations of the reduced construction type shall be allowed to be the same as for the original construction type.	
		Reason: the purpose of this amendment is to make the IBC consistent with s. 412.11 Alternates permitted by the FBC for the allowable reduction in required fire resistance ratings of high rise buildings. 	
	403.3 Reduction in fire-resistance rating. The fire-resistance-rating reductions listed in Sections 403.3.1 and 403.3.2 shall be allowed in buildings classified as Group B or Group R occupancies  that have sprinkler control valves equipped with supervisory initiating devices and water-flow
initiating devices for each floor. (State of Louisiana).		
403.3.2 Shaft enclosures. The required fire-resistance rating of the fire barrier walls enclosing vertical shafts, other than exit enclosures and elevator hoistway enclosures, shall be reduced to 1 hour where automatic sprinklers are installed within the shafts at the top and at alternate floor levels.
	403.3.2 Shaft enclosures. In buildings no higher than 250 feet (76.2 m) the required fire-resistance rating of the fire barrier walls enclosing vertical shafts, other than exit enclosures and elevator hoistway enclosures, shall be reduced to 1 hour where automatic sprinklers are installed within the shafts at the top and at alternate floor levels. (State of Louisiana)	The revision to s.403.3.2 is Louisiana specific change and is not applicable to Florida. 

		Add as a new Section 403.15 to read as follows.
Smoke control shall be accordance with s. 909.  [Revised 1/13/04]	
		Reason: The propose code change mandates that an approved method of automatic smoke control be provided in high rise buildings based on requirements presently contained in Section 909 of the Florida Building Code. [Revised 1/13/04] 	

503.1.1 Basements. Basements need not be included in the total allowable area provided they do not exceed the area permitted for a one-story building.
	§503.2.4 503.1.1 Basements. A basement of a building shall not count as a story, when applying Table 500 for allowable building height., if the upper surface of the first floor above such basement complies with all of the following:

1. is less than 7 ft (2134 mm) above grade,
2. is less than 7 ft (2134 mm) above finished ground level for more than 50 percent of the perimeter of a building, and
3. is less than 12 ft (3658 mm) above finished ground level around the entire building perimeter.

A basement is counted as a story when applying other sections of the code.

	Revise Section 503.1.1 Basements by deleting the entire text and substituting text as follows:

§503.2.4 503.1.1 Basements. A basement of a building shall not count as a story, when applying Table 500 for allowable building height., if the upper surface of the first floor above such basement complies with all of the following:

1. is less than 7 ft (2134 mm) above grade,
2. is less than 7 ft (2134 mm) above finished ground level for more than 50 percent of the perimeter of a building, and
3. is less than 12 ft (3658 mm) above finished ground level around the entire building perimeter.

A basement is counted as a story when applying other sections of the code.	
	§503.2.5 503.1.2 Group A and E basements. Group A and Group E basements used as classrooms or assembly rooms shall be counted as a story.	§503.2.5 503.1.2 Group A and E basements. Group A and Group E basements used as classrooms or assembly rooms shall be counted as a story.

Reason: the proposed amendment will make the height an area requirements for basement consistent with the FBC. 	
503.1.2 Special industrial occupancies. Buildings and structures designed to house low-hazard industrial processes that require large areas and unusual heights to accommodate craneways or special machinery and equipment including, among others, rolling mills; structural metal fabrication shops and foundries; or the production and distribution of electric, gas or steam power, shall be exempt from the height and area limitations of Table 503.		Delete Section 503.1.2 Special industrial occupancies in its entirety without substitutions. 	
506.4 Area determination. The maximum area of a building with more than one story shall be determined by multiplying the allowable area of the first floor (Aa), as determined in Section 506.1, by the number of stories as listed below.
1. For two-story buildings, multiply by 2;
2. For three-story or higher buildings, multiply by 3; and,
3. No story shall exceed the allowable area per floor (Aa), as determined in Section 506.1 for the occupancies on that floor.		Delete Section 506.4 Area determination in its entirety without substitution.  

Reason: Area determination is addressed directly in the revised Table 503.	
Exceptions:
1. Unlimited area buildings in accordance with Section 507.
2. The maximum area of a building equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.2 shall be determined by multiplying the allowable area per floor (Aa), as determined in Section 506.1 by the number of stories.			
504.1 General. The heights permitted by Table 503 shall only be increased in accordance with this section.
Exception: The height of one-story aircraft hangars, aircraft paint hangars and buildings used for the manufacturing of aircraft shall not be limited if the building is provided
with an automatic fire-extinguishing system in accordance with Chapter 9 and is entirely surrounded by public ways or yards not less in width than one and one-half times the height of the building.

	§503.2.6 Special unlimited height

§503.2.6.1 The height of Group B, Group M and Group R occupancies of Type II construction shall not be limited, provided the fire resistance of all columns shall be not less than 3 hours and the other structural members including floors shall be not less than that shown in Chapter 6, but in no case less than 2 hours except that roofs and their supporting beams, girders, trusses and arches shall be not less than 1-
½ hours.
	Revise Section 504.1 General by deleting the entire text and substituting the following new text.

§503.2.6   504.1 Special unlimited height.

§503.2.6.1 The height of Group B, Group M and Group R occupancies of Type II I -B construction shall not be limited, provided the fire resistance of all columns shall be not less than 3 hours and the other structural members including floors shall be not less than that shown in Chapter 6, but in no case less than 2 hours except that roofs and their supporting beams, girders, trusses and arches shall be not less than 1-½ hours.	
		Exception: The height of one-story aircraft hangars, aircraft paint hangars and buildings used for the manufacturing of aircraft shall not be limited if the building is provided
with an automatic fire-extinguishing system in accordance with Chapter 9 and is entirely surrounded by public ways or yards not less in width than one and one-half times the height of the building.  [Revised 1/13/04]	
		Reason: General (Height Modifications) has been revised to incorporate the unlimited height allowed for Group B and Group R occupancies by s. 503.2.6 of the FBC.	
504.2 Automatic sprinkler system increase. Where a building is equipped throughout with an approved automatic sprinkler system in accordance with Section 903.3.1.1, the value specified in Table 503 for maximum height is increased by 20 feet (6096 mm) and the maximum number of stories is increased by one story. These increases are permitted in addition to the area increase in accordance with Sections 506.2 and 506.3. For Group R buildings equipped throughout with an approved automatic sprinkler system in accordance with Section 903.3.1.2, the value specified in Table 503 for maximum height
is increased by 20 feet (6096 mm) and the maximum number of stories is increased by one story, but shall not exceed four stories
or 60 feet (18 288 mm), respectively.		Delete Section 504.2 Automatic Sprinkler system increase in its entirety without substitution. 

Reason: increase in building area is already included in Table 503 similar to Table 500 in the FBC.	
Exceptions:
1. Group I-2 of Type IIB, III, IV or V construction.
2. Group H-1, H-2, H-3 or H-5.
3. Fire-resistance rating substitution in accordance with Table 601, Note d.			
504.3 Roof structures. Towers, spires, steeples and other roof structures shall be constructed of materials consistent with the
required type of construction of the building except where other construction is permitted by Section 1509.2.1. Such structures shall not be used for habitation or storage. The structures shall be unlimited in height if of noncombustible materials and shall not extend more than 20 feet (6096 mm) above the allowable height if of combustible materials (see Chapter 15 for additional requirements).		Renumber Section 504.3 Roof Structures as Section 504.2.	
507.8 Group E buildings. The area of a one-story Group E building of Type II, IIIA or IV construction shall not be limited when the following criteria are met:
1. Each classroom shall have not less than two means of egress, with one of the means of egress being a direct exit to the outside of the building complying with Section
1017.
2. The building is equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1.
3. The building is surrounded and adjoined by public ways or yards not less than 60 feet (18 288 mm) in width.	§503.4.2 The area of a one-story building of Type IV construction used for Group E occupancy shall not be limited provided the building is equipped throughout with an approved automatic sprinkler system in accordance with §903, is surrounded on all sides by a permanent open space
of not less than 60 ft (18.3 m), and is provided with 1-hour fire-
resistant smokestop partitions dividing the building into areas not to exceed 30,000 sq ft (2787 m^2) in floor area.

	Revise Section 507.8 as follows:

507.8 Group E buildings. The area of a one-story Group E building of Type II, IIIA or IV construction shall not be limited when the following criteria are met:
1. Each classroom shall have not less than two means of egress, with one of the means of egress being a direct exit to the outside of the building complying with Section 1017 or the building is provided with smoke barriers having a minimum 1-hour fire-resistance rating dividing the building into areas not to exceed 30,000 square feet (2,787 m2) in floor area. 	
		2. The building is equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1.
3. The building is surrounded and adjoined by public ways or yards not less than 60 feet (18 288 mm) in width.	
		Reason: Section 507.8 has been revised to be consistent with the unlimited area provisions of s. 503.4.2 for Group E occupancies.	

507.9 Motion picture theaters. In buildings of Type I or II construction, the area of one-story motion picture theaters shall not be limited when the building is provided with an automatic sprinkler system throughout in accordance with Section 903.3.1.1 and is surrounded and adjoined by public ways or
yards not less than 60 feet (18 288 mm) in width.
	§503.4.3 One-story Group A buildings without a stage requiring proscenium opening protection of Type V 1-hour, IV or III construction which are surrounded on all sides by a permanent open space of not less
than 60 ft (18.3 m), are provided with an approved automatic sprinkler system, and the assembly floor is located at, or within 21 inches (533 mm) of street or grade level and all exits meet the street or grade level by ramps having a slope not exceeding a 1:12 shall not be limited in area.

	Delete Section 507.9, Motion Picture Theater and substitute the following new section:
 
§503.4.3 507.9 One-story Group A buildings without a stage requiring proscenium opening protection of Type V 1-hour, IV or III II, III - A or IV construction which are surrounded on all sides by a permanent open space of not less than 60 ft (18.3 m), are provided with an approved automatic sprinkler system, and the assembly floor is located at, or within 21 inches (533 mm) of street or grade level and all exits meet the street or grade level by ramps having a slope not exceeding a 1:12 shall not be limited in area.	
		Reason: Section 507.9 has been deleted since the FBC does not have a provision for unlimited area motion picture theaters.  However, new text for unlimited area Group A occupancies has been substituted based on Section 503.4.3 of the FBC.  	
Table 503 Allowable Heights and Building Areas	Table 500 Allowable Heights and Building Areas	Delete Table 503 Allowable Height and Building Areas in its entirety and substitute a new Table 503 to read as follows: (see attached).	
		Reason: Revise Table 503 for consistency with Table 500.  The proposed amendment simply takes Table 500 out of the FBC as presently adopted and replace Table 503 in the 2003 IBC.  Table 500 has also been modified using the appropriate IBC occupancy classifications substituted for the FBC use groups and the appropriate IBC types of construction designations substituted for the FBC types of construction. 	
507.1 Nonsprinklered, one story. The area of a one-story, Group F-2 or S-2 building shall not be limited when the building
is surrounded and adjoined by publicways or yards not less than 60 feet (18 288 mm) in width.

507.3 Two story. The area of a two-story, Group B, F, M or S building shall not be limited when the building is provided with
an automatic sprinkler system in accordance with Section 903.3.1.1 throughout, and is surrounded and adjoined by public ways or yards not less than 60 feet (18 288 mm) in width.	§503.4.1 The area of a one-story building of Group B, Group F, Group M or Group S occupancy shall not be limited provided the building is equipped with an approved automatic sprinkler system throughout, in accordance with §903, or other automatic extinguishing systems as approved
by the building official, and is surrounded on all sides by a permanent open space of not less than 60 ft (18.3 m).  High-piled combustible storage shall be protected in accordance with Florida Fire Prevention
Code.	Delete Sections 507.1 and 507.3 without substitution. 

Reason: Section 503.4 of the FBC does not allow 2-story unlimited area buildings.	
Table 601 Fire-Resistance Rating Requirements for Building Elements (hours)

Table 602 Fire-Resistance Rating Requirements for Exterior walls Based on Fire Separation Distance.	TABLE 600
FIRE RESISTANCE RATINGS
REQUIRED FIRE RESISTANCE IN HOURS
	Revise Tables 601 and 602 for consistency with Table 600, FBC.  (See attached).
	
		Reason: the proposed amendment increases some of the fire resistance ratings required for the various types of construction to be consistent with those specified in Table 600 of the FBC.  The revisions mainly apply to Type I construction for those critical structural elements that are basically supporting vertical loads in the building and include interior and exterior bearing walls, as well as the structural frame (columns and beams framing into columns).  New footnotes have been added and some footnotes deleted to be consistent with Table 600 of the FBC. 	

705.3 Materials. Fire walls shall be of any approved noncombustible materials.
Exception: Buildings of Type V construction.

705.4 Fire-resistance rating. Fire walls shall have a fire-resistance rating of not less than that required by Table 705.4.

Table 705.4 Fire Wall Fire Resistance Ratings.

	FIRE WALL. A 4-hour fire resistant wall, having protective openings, which restricts the spread of fire and extends continuously from the foundation to or through the roof, with sufficient structural stability under fire conditions to allow collapse of construction on either side without collapse of the wall.
	Revise Section 705.3 as follows:
705.3 Materials. Fire walls shall be constructed of any approved noncombustible materials.
Exception: Buildings of Type V construction.

705.4 Fire-resistance rating. Fire walls shall have a fire-resistance rating of not less than that required by Table 705.4. 4 hours.

Delete Table 705.4 in its entirety without substitution.

Table 705.4 Fire Wall Fire Resistance Ratings.	
		Reason: the IBC specifies that a fire wall can have a minimum fire resistance rating of anywhere from 2 hours to 4 hours depending on the occupancy of the building.  This proposed code change reinstates the minimum fire resistance rating of 4 hours for fire walls required by Table 600 Fire Resistance ratings of the FBC.	
	§704.4 Townhouse fire separation

§704.4.1 Each townhouse shall be considered a separate building and shall be separated from adjoining townhouses by a party wall complying with §704.4.2 or by the use of separate exterior walls meeting the requirements of Table 600 for zero clearance from property lines as required for the type of construction. Separate exterior walls shall include one of the following:

	Ad d 704.4, FBC as a new section 705.4.1 as follows:

§704.4 705.4.1 Townhouse fire separation

§704.4.1 705.4.1.1 Each townhouse shall be considered a separate building and shall be separated from adjoining townhouses by a party wall complying with §704.4.2 503.2 or by the use of separate exterior walls meeting the requirements of Tables 600 601 and 602 for zero clearance from property lines as required for the type of construction. Separate exterior walls shall include one of the following:	
	1. A parapet not less than 18 inches (457 mm) above the roof line.

2. Roof sheathing of noncombustible material or fire retardant treated wood, for not less than a 4 ft (1219 mm) width on each side of the exterior dividing wall.

3. One layer of 5/8 inch (15.9 mm) Type X gypsum board attached to the underside of roof decking, for not less than a 4 ft (1219 mm) width on each side of the exterior dividing wall.	1. A parapet not less than 18 inches (457 mm) above the roof line.

2. Roof sheathing of noncombustible material or fire retardant treated wood, for not less than a 4 ft (1219 mm) width on each side of the exterior dividing wall.

3. One layer of 5/8 inch (15.9 mm) Type X gypsum board attached to the underside of roof decking, for not less than a 4 ft (1219 mm) width on each side of the exterior dividing wall.	
	§704.4.2 When not more than 3 stories in height, townhouses may be separated by a single wall meeting the following requirements:
	Same as above.

§704.4.2 705.4.1.2 When not more than 3 stories in height, townhouses may be separated by a single wall meeting the following requirements:	

	1. Such wall shall provide not less than a 2-hour fire resistance rating. Plumbing, piping, ducts, electrical or other building services shall not be installed within or through the 2 hour wall, unless such materials and methods of penetration have been tested in accordance with §701.2.	1. Such wall shall provide not less than a 2-hour fire resistance rating. Plumbing, piping, ducts, electrical or other building services shall not be installed within or through the 2 hour wall, unless such materials and methods of penetration have been tested in accordance with §701.2.	
	2. Such wall shall be continuous from the foundation to the underside of the roof sheathing or shall have a parapet extending not less than 18 inches (457 mm) above the roof line.  When such wall terminates at the underside of the roof sheathing, the roof sheathing for not less than a 4 ft (1219 mm) width on each side of the wall shall be of noncombustible material, or fire retardant treated wood, or one layer of 5/8 inch (15.9 mm) Type X gypsum wallboard attached to the underside of the roof decking.	2. Such wall shall be continuous from the foundation to the underside of the roof sheathing or shall have a parapet extending not less than 18 inches (457 mm) above the roof line.  When such wall terminates at the underside of the roof sheathing, the roof sheathing for not less than a 4 ft (1219 mm) width on each side of the wall shall be of noncombustible material, or fire retardant treated wood, or one layer of 5/8 inch (15.9 mm) Type X gypsum wallboard attached to the underside of the roof decking.	
	3. Each dwelling unit sharing such wall shall be designed and constructed to maintain its structural integrity independent of the unit on the opposite side of the wall.

EXCEPTION: Said wall may be penetrated by roof and floor structural members provided that the fire resistance rating and the structural integrity of the wall is maintained.
	Same as above.

3. Each dwelling unit sharing such wall shall be designed and constructed to maintain its structural integrity independent of the unit on the  opposite side of the wall.

EXCEPTION: Said wall may be penetrated by roof and floor structural members provided that the fire resistance rating and the structural integrity of the wall is maintained.	
		Reason: An alternative for town house fire separations is added based on section 704.4 Townhouse Fire Separation of the FBC.  The alternate allows townhouses to be separated by a 2-hour party wall or two separate exterior walls, each having a 1 hour fire-resistance rating.  This proposed amendment is consistent with the requirements of s. 704.4, FBC.   	
SECTION 708
FIRE PARTITIONS
708.1 General. The following wall assemblies shall comply with this section.
1. Walls separating dwelling units in the same building.
2. Walls separating sleeping units in occupancies in Group R-1, hotel occupancies, R-2 and I-1.
3. Walls separating tenant spaces in covered mall buildings as required by Section 402.7.2.
4. Corridor walls as required by Section 1016.1.

	§704.3 Tenant fire separation

§704.3.1 In a building or portion of a building of a single occupancy classification, when enclosed spaces are provided for separate tenants, such spaces shall be separated by not less than 1- hour fire resistance.

EXCEPTION: In Group B and Group S occupancies, partitions not rated for fire resistance may be used to separate tenants provided no area between partitions rated at 1 hour or more exceeds 3,000 sq ft (278.7 m^2).

	SECTION 708
FIRE PARTITIONS
708.1 General. The following wall assemblies shall comply with this section.
1. Walls separating dwelling units in the same building.
2. Walls separating sleeping units in occupancies in Group R-1, hotel occupancies, R-2 and I-1.
3. Walls separating tenant spaces in covered mall buildings as required by Section 402.7.2.
4. Corridor walls as required by Section 1016.1.
5. Wall separating individual tenant spaces.
Exception: In Group B and S occupancies walls used to separate tenants shall not be required to have fire-resistance rating provided no area between fir partitions having a 1 hour fire-resistance rating exceeds 3,000 square feet (279 m2). 	
		Reason: The proposed code change incorporate the requirements for 1-hour fire resistance rated tenant separations presently contained in Section 704.3 of the FBC.  	
716.5.2 Fire barriers. Duct and air transfer openings of fire barriers shall be protected with approved fire dampers installed
in accordance with their listing.
Exception: Fire dampers are not required at penetrations of fire barriers where any of the following apply:
1. Penetrations are tested in accordance with ASTM E119 as part of the fire-resistance-rated assembly.
2. Ducts are used as part of an approved smoke control system in accordance with Section 909.
3. Such walls are penetrated by ducted  HVAC systems, have a required fire-resistance rating of 1 hour or less, are in areas of other than Group H and are in buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2. For the purposes of this exception, a ducted HVAC system shall be a duct system for conveying supply, return or exhaust air as part of the structure’s HVAC system. Such a duct system shall be constructed of sheet steel not less than 26 gage thickness and shall be continuous from the air-handling appliance or equipment to the air outlet and inlet terminals.
	§705.1.2.2 Fire dampers

§705.1.2.2.1 Fire dampers, installed in accordance with manufacturer's installation instructions, shall be provided in ducts penetrating walls or partitions having a fire resistance rating of 1 hour or more.

EXCEPTIONS:

1. Where branch ducts connect to return risers in which the air flow is upward and subducts at least 22 inches (559 mm) long are carried up inside the riser at each inlet.

2. In duct systems of any duct materials or combinations thereof allowed by Chapter 6 of the Florida Building Code, Mechanical penetrating 1-hour walls or partitions, where the duct penetrating the rated wall or partition meets all of the following minimum         requirements:

	Revise Section 716.2 as follows:
716.5.2 Fire barriers. Duct and air transfer openings of fire barriers shall be protected with approved fire dampers installed in accordance with their listing.
Exception: Fire dampers are not required at penetrations of fire barriers where any of the following apply:
1. Penetrations are tested in accordance with ASTM E119 as part of the fire-resistance-rated assembly.
2. Ducts are used as part of an approved smoke control system in accordance with Section 909.
3. Such walls are penetrated by ducted HVAC systems, have a required fire-resistance rating of 1 hour or less, are in areas of other than Group H and are in buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2 comply with the provisions set forth in the Exception to Section 716.5.4. For the purposes of this exception, a ducted HVAC system shall be a duct system for conveying supply, return or exhaust air as part of the structure’s HVAC system. Such a duct system shall be constructed of sheet steel not less than 26 gage thickness and shall be continuous from the air-handling appliance or equipment to the air outlet and inlet terminals.	
2.2. Ducts are used as part of an approved
smoke control system, designed and installed in accordance with Section 909,
and where the smoke damper will interfere
with the operation of the smoke
control system, or
3. Smoke dampers are not required at penetration of exhaust or supply shafts in parking garages that are separated from other building shafts by not less than 2-hour fire-resistance-rated construction.	1. the duct shall not exceed one 100 square inches (0.06 m^2),
2. the duct shall be of 0.0217 inch (0.55 mm) minimum steel,
3. the duct shall continue with no duct openings for not less than 5 ft (1.5 m) from the rated wall,
4. the duct shall be installed above a ceiling, and,
5. the duct does not terminate at a wall register in the rated wall.	Reason: The purpose of this amendment is to
delete the automatic sprinkler system trade-off that allows the omission of required fire dampers in 1-hour fire barrier walls or 1-hour fire partitions.  This change make the 2003 IBC consistent with the provisions contained in section 705.1.2.2 Fire Dampers of the FBC.	
716.5.4 Fire partitions. Duct penetrations in fire partitions shall be protected with approved fire dampers installed in accordance with their listing.
Exceptions: In occupancies other than Group H, fire dampers are not required where any of the following apply:
		Revise Section 716.5.4 as follows:
716.5.4 Fire partitions. Duct penetrations in fire partitions shall be protected with approved fire dampers installed in accordance with their listing.
Exceptions: In occupancies other than Group H, fire dampers are not required where any of the following apply:	
1. The partitions are tenant separation and corridor walls in buildings equipped throughout with an automatic sprinkler system in accordance with Section
903.3.1.1 or 903.3.1.2 and the duct is
protected as a through penetration in accordance with section 712.
2. The duct system is constructed of approved materials in accordance with the International Mechanical Code and the duct penetrating the wall meets all of the following minimum requirements:		1. The partitions are tenant separation and corridor walls in buildings equipped throughout with an automatic sprinkler system in accordance with Section
903.3.1.1 or 903.3.1.2 and the duct is
protected as a through penetration in accordance with section 712.
2. 1. The duct system is constructed of approved materials in accordance with the International Florida Mechanical Code and the duct penetrating the wall meets all of the following minimum requirements:	
2.1. The duct shall not exceed 100 square inches (0.06 m2).
2.2. The duct shall be constructed of steel a minimum of 0.0217 inch (0.55 mm) in thickness.
2.3. The duct shall not have openings that communicate the corridor with adjacent spaces or rooms.
2.4. The duct shall be installed above a ceiling.		2.1. The duct shall not exceed 100 square inches (0.06 m2).
2.2. The duct shall be constructed of steel a minimum of 0.0217 inch (0.55 mm) in thickness.
2.3. The duct shall not have openings that communicate the corridor with adjacent spaces or rooms.
2.4. The duct shall be installed above a ceiling.	
2.5. The duct shall not terminate at awall register in the fire-resistance-rated wall.
2.6. A minimum 12-inch-long (0.30 m) by 0.060-inch-thick (1.52 mm) steel sleeve shall be centered in each duct opening. The sleeve shall be secured to both sides of the wall and all four sides of the sleeve with minimum 11/2-inch by 11/2-inch by 0.060-inch (0.038 m by 0.038 m by 1.52 mm) steel retaining angles. The retaining angles shall be secured to the sleeve and the
wall with No. 10 (M5) screws. The annular space between the steel sleeve and wall opening shall be filled with rock (mineral) wool batting on all sides.		2.5. The duct shall not terminate at awall register in the fire-resistance-rated wall.
2.6. A minimum 12-inch-long (0.30 m) by 0.060-inch-thick (1.52 mm) steel sleeve shall be centered in each duct opening. The sleeve shall be secured to both sides of the wall and all four sides of the sleeve with minimum 11/2-inch by 11/2-inch by 0.060-inch (0.038 m by 0.038 m by 1.52 mm) steel retaining angles. The retaining angles shall be secured to the sleeve and the
wall with No. 10 (M5) screws. The annular space between the steel sleeve and wall opening shall be filled with rock (mineral) wool batting on all sides.	
		Reason: The purpose of this proposed amendment is to delete the automatic sprinkler system trade-off that allows the omission of required fire dampers in 1-hour fire barrier wall or 1 - hour fire partitions.  This change makes the 2003 IBC consistent with the provisions contained in Section 705.1.2.2 Fire Dampers of the 2001 FBC.	
Table 1004.3.2.1 Corridor Fire-Resistance Rating.  		Revise Table 1004.3.2.1 as follows: (see attached).

Reason:

The purpose of this proposed amendment are the following: 
(1)  to reinstate the 1-hour fire resistance rating required for corridors in Group A occupancies in the 2003 IBC as is presently required by the 2001 FBC.  The FBC does not allow a sprinkler trade-off to omit the ire resistance rating requirement for a corridor in a Group A assembly type occupancy.
(2) to delete the reference to Section 903.3.1.2 in footnote c to Table 1004.3.2.1.  This section allows for the use of an NFPA 13 R automatic sprinkler system for the trade-off of 1- hour fire resistance ratings for corridors.  However, NFPA 13R is only applicable to residential occupancies and 1-hour corridors required in those occupancies are not allowed to be traded-off for the installation of an automatic sprinkler system.   Therefore, the reference is inappropriate.