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2006 International Existing Building Code

International Existing Building Code

The 2006 International Existing Building Code® (IEBC®) encourages the use and reuse of existing buildings, while requiring reasonable upgrades and improvements. These upgrades and improvements, where applicable, are life-safety related and include the upgrading of fire protection systems, partial or complete enclosement of vertical openings, replacement of unsafe interior finishing, ensurance of adequate means of egress and improvements of accessibility and the structural system. It is important to note that the necessity of the upgrades and improvements is determined by the type and extent of the work, not the expense.

Scope

The IEBC applies to existing buildings that address the following: · · · · · Repair Alteration Change of occupancy Addition Relocation

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A building or portion of a building that has not been previously occupied or used for its intended purpose shall comply with the provisions of the International Building Code® (IBC®) for new construction.

Content

& Administration (Chapter 1) & Definitions (Chapter 2) & Prescriptive Compliance

Alternatives (Chapter 3) (Chapter 4)

& Classification of Work & Repairs (Chapter 5)

& & & &

Alterations-Level 1 (Chapter 6) Alterations-Level 2 (Chapter 7) Alterations-Level 3 (Chapter 8) Change of Occupancy (Chapter 9)

& Historic Buildings (Chapter 11) & Relocated or Moved Buildings

(Chapter 12) 13) 14)

& Compliance Alternatives (Chapter & Construction Safeguards (Chapter

& Additions (Chapter 10)

Chapter 1: Administration Code Section Section Title 2006 101.3 2003 NEW Intent Added the intent of the IEBC provisions to make consistent with other I-codes. Added clarification on how the IEBC applies to buildings not previously occupied and to buildings previously occupied. Clarified and expanded the options when dealing with the repair, alteration, change of occupancy, addition and relocation of existing buildings. Added an allowance for the code official to request a preliminary meeting to discuss plans for the proposed work. Change

101.4

NEW

Applicability

101.5

NEW

Compliance methods

104.2.1

104.2.1

Preliminary meeting

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Chapter 3: Prescriptive Compliance Alternative Code Section Section Title 2006 301 2003 NEW General Clarified the options of compliance with Chapter 3 or with the compliance alternatives in Section 101.4. Added the option of compliance with Chapter 34 of the IBC for additions, alterations or repairs, fire escapes, glass replacement, change of occupancy, historic buildings, moved structures and accessibility for existing structures by adding the applicable sections of IBC Chapter 34 into IEBC new Chapter 3. Change

302-308

NEW

Additions, Alterations or Repairs

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Chapter 4: Classification of Work (Previously Chapter 3) Code Section Section Title 2006 2003 Added language to clarify that the scope of Chapter 4 was to identify the classification of work for use with the "work area" method requirements of Chapter 5 through 12 of the IEBC. To be consistent with changes made to Sections 101.5 and with the addition of the new Chapter 3, this section again reminds the code user of the compliance alternatives. Added language to clarify the work on non-damaged components that is necessary to perform a repair is not subject to the requirements of Chapters 6 through 9. Change

401.1

301.1

Scope

401.1.1

NEW

Compliance with other alternatives

402.3

NEW

Related work

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Chapter 6: Alterations-Level 1 (Previously Chapter 5) Code Section Section Title 2006 2003 Added language to require that repairs to existing buildings comply with the energy conservation provisions of the IECC or IRC as required for new construction, yet without requiring the entire building to comply. Note that similar language has been added to Chapters 7 and 8 to extend these requirements to Level 2 and Level 3 alterations. Added language allowing an additional layer of roof covering, weighing 3 pounds per square foot or less, to be applied over an existing single layer of roof covering without requiring the structural system supporting the roofing to comply with the vertical load requirements of the IBC. Change

607

NEW

Energy Conservation

606.2.1

507.2.1

Addition or replacement of roofing or replacement of equipment

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Chapter 7: Alterations-Level 2 (Previously Chapter 6) Code Section Section Title 2006 705.3.1.1(2) 2003 605.3.1.1(2) Single-exit buildings Increased the allowable floor area per floor for Group B, F-2 and S-2 occupancies from 3,000 to 3,500 square feet. Increased the maximum allowable seismic base shear increase for an Alteration Level 2 from 5 to 10 percent. Added a maximum 10 percent limitation to the allowable decrease in base seismic shear capacity. Language was also added that allowed the change in base shear to be calculated relative to the building's current base shear capacity if it was increased since the original construction of the building. Change

707.4.2

607.4.2

Lateral loads

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Chapter 8: Alterations-Level 3 (Previously Chapter 7) Code Section Section Title 2006 802.1.2 2003 702.1.2 Elevators Added reference to ASME A17.3 for emergency operation of existing elevators and ASME A17.1 for emergency recall operation of new elevators. Added requirements for the installation of a manual fire alarm system throughout all work areas of a Level 2 alteration when required by the IBC. Added requirements for the installation of a automatic fire detection system throughout all work areas of a Level 2 alteration when required by the IBC. Change

804.2.1

704.2.1

Manual fire alarm systems

804.2.2

NEW

Automatic fire detection

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Chapter 9: Change of Occupancy (Previously Chapter 8) Code Section Section Title 2006 2003 Change in occupancy with no change of occupancy classification Fire protection and interior finish Fire protection systems Fire sprinkler system Fire alarm and detection system Deleted the exception. A one story building changed from Group B, F-2, Height and area for change S-2, A5, R-3 or U (hazard level 4) to a Group E (hazard level 3) shall be to higher hazard category required to meet the area requirements of the IBC. Added requirements for fire sprinkler systems and fire alarm and detection systems for changes of occupancy to be installed where the change of occupancy occurs in accordance with the requirements of Chapter 9 of the IBC. Added requirements for changes of occupancy with no change of occupancy classification to comply with the International Codes ® subject to the approval of the code official and the issuance of a certificate of occupancy for the change in occupancy. Change

901.2

NEW

912.1.2 912.2 912.2.1 912.2.2

NEW NEW NEW NEW

912.5.1

812.4.2.1

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Chapter A5: Earthquake Hazard Reduction in Existing Concrete Buildings and Concrete with Masonry Infill Buildings Code Section Section Title 2006 A505.2.3 2003 A505.2.3 Partially grouted masonry Site ground motion for Tier 1 analysis General Replaced UBC standard 21-4 with ASTM C90-2003 for testing of partially grouted masonry units. Change

A506.1 A507.1

A506.1 A507.1

Added reference to ASCE 31 Tier 1, Screening Phase to indicated conformance to Chapter A5.

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1. Answers will vary. For example, acceptable answers would include:

w Intent is added to the IEBC provisions (Section 101.3). w Language is added to clarify the work on non-damaged components that is necessary to perform

a repair is not subject to the requirements of Chapters 6 through 9 (Section 402.3). w Allowable floor area per floor is increased for Group B, F-2 and S-2 occupancies from 3,000 to 3,500 square feet (Section 705.3.1.1). w Reference is added to ASME A17.3 for emergency operation of existing elevators and ASME A17.1 for emergency recall operation of new elevators (Section 802.1.2). w Requirements are added for the installation of a manual fire alarm system throughout all work areas of a level 2 alteration when required by the IBC (Section 804.2.1). 2. Answer will vary. For example, an acceptable answer would be:

w Intent was added to the IEBC provisions in Section 101.3 to make consistent with other I-Codes.

3.

No. The IEBC intends to provide flexibility to achieve compliance with minimum requirements to safeguard the public as they are affected by the repair, alteration, change of occupancy, addition and relocation of existing buildings. (see Section 101.3) False. The building described above would need to comply with the IBC or International ® ® Residential Code (IRC ) as applicable or with any current permit with such occupancy. (see Section 101.4.1) No. Exclusive of compliance with the exception to Section 101.5, Section 101.5 contains three methods of achieving compliance with the IEBC; prescriptive compliance (Chapter 3), work area compliance (Chapters 4 through 12) or performance compliance (Chapter 13).

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4.

5.

6. 7.

True. (Section 104.2.1) a. b. c. d. Compliance with Chapter 3 of the IEBC. Compliance with Chapter 4 through 12 of the IEBC Compliance with Chapter 13 of the IEBC Alterations complying with the laws in existence when the building or portion thereof was built unless the building has sustained substantial structural damage, the work is beyond a limited structural alteration or the alteration is in a flood hazard area.

8. 9.

True. Chapters 3 and 13 are compliance alternatives to the methods contained in Chapters 5 through 12. No. The need for the work is based on damage to the structural member and is therefore classified as a repair. Section 402.1 allows component replacement as a method of repair to a damaged component.

10. In accordance with Sections 808.1 and 1006.1 the entire work area of the alteration and the entire addition are subject to the requirements of the International Energy Conservation Code® (IECC®). 11. Two exits are required. Although the building occupancy, height and travel distance are within the thresholds of Section 705.3.1.1, No. 2, for a building with one exit, the square footage of the floor exceeds that allowed in that same Section. 12. No. The maximum allowable seismic base shear capacity decrease for an Alteration Level 2 is 10 percent. If the buildings seismic base shear capacity has been increased since the buildings original construction, the exception to Section 707.4.2 allows this capacity to be use in the calculation that determines the percentage change. Therefore, the capacity decrease is 8.5 percent and the structural provisions are not required. 13. Yes. ASME A17.3 is referenced in Section 802.1.2 for emergency operation of existing elevators and ASME A17.1 is referenced in the same section for emergency recall operation of new elevators. 14. Yes. Section 804.2.1 requires a manual alarm system to be installed throughout the work area if the system is required by the IBC. Section 907.2.7 of the IBC requires the system because the building is non-sprinklered and has an occupant load of more than 100 persons above the level of exit discharge. 15. 1a. Yes. The increase in occupant load is considered a change in occupancy without a change in occupancy classification. 1b. Yes. In accordance with Section 901.2 special provisions of the applicable International Code are applicable to a change of occupancy with no change in occupancy classification. Under the new construction requirements of the IBC and the IFC this space would now be required to be sprinklered. 16. Yes. (See Sections 912.2.1 and 912.2.2)

2006 I-Code Update: International Existing Building Code published by International Code Council, Inc. § Professional Development Services § 4051 West Flossmoor Road § Country Club Hills, IL 60478-5795 § U.S.A. § Phone 1-888-ICC-SAFE (422-7233) § Fax (708) 799-2651 § http://www.iccsafe.org/training § Copyright February 2006

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