1 2009 international existing buildings code (iebc) & comm 66 fundamentals & revisions

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2009 International Existing Buildings Code (IEBC) & Comm 66 Fundamentals & Revisions

http://www.amazon.com/gp/product/images/1580017371/ref=dp_image_0?ie=UTF8&n=283155&s=books

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Encourage the use and re-use of existing buildings while requiring reasonable upgrades and improvements in code compliance.

IEBC Background

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WI IEBC History

• Replaces S&B Existing Building Guidelines, Wisconsin Historic Code (Comm ch. 70) and IBC ch. 34, which share similarities with IEBC.

• Provides a more predictable alternative than one or more petitions for variance

• Note that there is no distinction between buildings originally approved under ICC suite or pre-ICC Wisconsin codes

• Note that per s. 101.121, WI Stats, local ordinances may not be anymore restrictive for historic building projects approved per this code

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IEBC Approach

New work intended by the owner is generally regulated by the IBC, IMC, etc., but additional upgrades maybe triggered by the IEBC depending on the type and extent of the intended work.

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IEBC Proportional Approach

UPGRADES

Alt. Lev.1Alt. Lev.2Alt. Lev. 3

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2

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Types of Work

Ch. 6 Level 1 AlterationCh. 7 Level 2 Alteration

Ch. 8 Level 3 Alteration

REQUIRED

Change of Use

Ch. 9 Change of Use

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s. Comm 66.0101(1) Application

Does not apply to unchanged existing buildings which are instead subject to: • Per s. Comm 61.03(13) for post-1914 structures:

• Buildings shall continue to comply with applicable State Building Code

• Bleachers and grandstands shall comply with ICC 300-02 Bleacher Standard – annual owner inspections and retroactive 4” guard infills

• Or chs. Comm 75-79 Buildings Constructed Prior to 1914 (previously titled, Existing Buildings Code)

• And applicable fire prevention codes, ch. Comm 14 & IFC or NFPA-1

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2007 ICC 300 Bleacher & Grandstand Standard Adopted per IBC 1028

• Retroactive 4” bleacher guard infill at perimeter and between seats and footboards

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s. Comm 66.0101(2) Change of Use to a Public

Building

• Change of Occupancy to a Public Building Occupancy from non-commercial use – comply with new construction requirements per IBC, rather than IEBC, except that archaic materials may continue to be used

• Revised Comm 66.0101(2)(b)2. to allow qualified historic buildings including 1&2 family dwellings to use the IEBC

• May petition to use IEBC or alternative compliance for other non-commercial buildings

• Also requires that initial tenant spaces plans following shell approval shall meet new construction requirements of IBC

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s. Comm 61.30 Plan Submittal

• Required for new buildings, additions and alterations• Change of Use - There is NO requirement that a plan

has to be submitted to gain an approval for a change in use. Submittal requirements exist only for the plans of the alteration work that is often desired or required with a change a use.

• 61.30(4) Minor Alterations - If the code official can understand the proposed project and agree that compliance can be achieved without having plans to work from, no submittal of plans is necessary - Document the decision!

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•Chapter 1 ADMINISTRATION – NOT ADOPTED IN WI EXCEPT FOR IEBC 102.4 RE REFERENCED STANDARDS Chapter 2 DEFINITIONS

•Chapter 3 PRESCRIPTIVE COMPLIANCE METHOD – NOT ADOPTED IN WI•Chapter 4 CLASSIFICATION OF WORK •Chapter 5 REPAIRS

•Chapter 6 ALTERATIONS - LEVEL 1



•Chapter 9 CHANGE OF OCCUPANCY •Chapter 10 ADDITIONS

IEBC Table of Contents• Chapter 11 HISTORIC BUILDINGS

Chapter 12 RELOCATED OR MOVED BUILDINGS • Chapter 13 COMPLIANCE ALTERNATIVES

• Chapter 14 CONSTRUCTION SAFEGUARDS – NOT ADOPTED IN WI

Chapter 15 REFERENCED STANDARDS

• Appendix A GUIDELINES FOR SEISMIC RETROFIT OF EXISTING

BUILDINGS (GSREB)

• Appendix B SUPPLEMENTARY ACCESSIBILITY REQUIREMENTS FOR EXISTING BUILDINGS AND FACILITIES – NOT ADOPTED IN WI

• Resource A FIRE RESISTANCE RATINGS OF ARCHAIC MATERIALS

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s. Comm 66.0101(4) Compliance Methods

Elect to use for alterations and changes of use:• IEBC chs. 4-12, as appropriate• Or IEBC ch. 13 for those topics covered,

use IEBC for rest• Or could also use current IBC, IMC, IFGC,

etal. – in any case, don’t have to do more than what the prevailing codes would require

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IEBC ch. 2 Definitions

• Alteration – Further defined in IEBC ch. 4

• Dangerous, Substantial Damage, Substantial Structural Damage and Unsafe Buildings – ch. 66 Deleted 506.2 and 506.2.5, although code official may still require analysis

• Historic Building – WI amendment to be a qualified historic building per s. Comm 61.04(5)

• Primary Function – alterations to this triggers additional accessibility improvements

• Repair – maintenance, limited in scope, not overall alterations

• Technically Infeasible – for accessibility purposes, same as before

• Work Area – reconfigured space for purposes of level 2 or 3 alterations

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Prescriptive Compliance Method

Chapter 3 - Not applicable in WI• Determined to be overly subjective

Chapter 3 Chapter 3

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IEBC ch. 4 Classification of Work

Chapter 4 • Repair• Alteration-Level 1• Alteration-Level 2 • Alteration-Level 3• Addition• Change of occupancy• Relocated or moved buildings• Historic buildings

More than one classification can apply to a project

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IEBC s. 401.2

Work area shall be shown on plans – note that per IEBC ch. 2 definition, work

area means reconfigured space (not all alterations)

– usually obvious• Submitter states level of alteration (I,

II or III) at time of scheduling and submittal

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IEBC

Chapter 5 - Repairs

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IEBC Ch. 5 Repairs

• Repair or maintenance work is to a building, which encloses some space, not the rebuilding of total burnouts or collapses

• Code at original time of installation applies unless IEBC ch 5 requires upgrade

• No plan submittal to state unless locally required to document work

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Revised 66.0500 – Carbon Monoxide Alarms for Smaller

Existing CBRFs• Retroactive

requirement for existing CBRFs serving 9-20 residents to install carbon monoxide alarms similar to Comm 62.1200 requirements

• Deadline of January 1, 2013

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RepairsIEBC 501.2 & 501.3 Permitted

Materials Options • Materials applicable for new

construction per IBC, IMC, etc• Like materials permitted provided no

increased hazard to life, health or property is created.

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RepairsIEBC 502.1 Hazardous Materials

• Hazardous materials no longer permitted to be used in a repair–Asbestos,–Lead based paint,–Etc.

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RepairsIEBC 502.2 Glazing in Hazardous

Locations

• Replacement of broken glazing in hazardous locations to comply with the applicable requirements of IBC ch 24– Exceptions: glass block walls,

louvered windows, and jalousies repaired with like materials.

– (Note that most wired glass is not allowed for replacement in doors and sidelights)

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IEBC Chapter 6 - Level 1 Alteration

• General removal and replacement of various materials regardless of need for maintenance or repair

• No area limitations in order to be considered a Level 1 Alteration

• Current IBC, IMC, etc. or IEBC ch. 6 applies, including to any new work.

• May or may not require plan submittal depending on work and code official’s determination

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Revised Comm 66.0503 – Smoke Alarm Maintenance

• Require replacement of smoke alarms per their listing

• Replacement battery-powered smoke alarms shall have a 10-year, non-replaceable, non-removable battery

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Level 1 AlterationsIEBC 605

Accessibility• Alterations must meet new

construction requirements, with exceptions.

• If the alterations include a primary function area, an accessible route, including sanitary facilities, to the area may be required as well.

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s. Comm 66.0100 Note re WI Fair Housing Law

• The requirements of s. 101.132, Stats., may be more restrictive than the IEBC when a project involves the remodeling of housing with three or more units

• 4 Basic Requirements:1.An accessible entrance

2.Accessible public/common use areas

3.Accessible doors & int. passage

4.Accessible features like accessible controls, grab bar reinforcement & lever handles

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Fair Housing LawRemodeling Scenarios

1. > 50% of the interior square footage of the housing is remodeled, the entire housing shall conform to the standards

2. If 25% to 50% is remodeled, that part of the housing that is remodeled shall conform to the standards

3. If < 25% is remodeled, the remodeling is not subject to the standards unless the alteration involves work on doors, entrances, exits or toilet rooms, in which case those elements shall conform to the standards

• Disproportionality may limit expense to 20% of the project

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Level 1 AlterationsIEBC 605 Accessibility

• IEBC 605.1 Accessibility Required unless Technically Infeasible–Alteration or removal of major structural

member–Existing physical or site constraints:

• Property lines• Set back requirements• Fire lanes• Means or egress issues

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Level 1 AlterationsIEBC 605.1 Accessibility

Other IEBC 605.1 Exceptions1. An accessible route not required unless

altering a primary function area 2. Accessible means of egress not required3. Type B dwelling units not required by IEBC

but may be required per WI Fair Housing Law – see Comm 61.0100

4. If a privately owned residential unit was originally designed as an “’A’ Type Unit”, the private owner of the unit may modify the unit to be a Type B Unit.

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Level 1 AlterationsIEBC 605.1 Accessibility

• Sections 605.1.1 through 605.1.12 relax the new construction accessibility requirements that would otherwise apply to existing elements that are being altered.

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Section 605.1.1 Entrances

...when altering an entrance and the building already has an accessible entrance on an accessible route, the altered entrance need not be made accessible unless called for by s. 605.2 (Alterations Affecting an Area Containing a Primary Function)

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Section 605.1.2 Elevators

...altered elements shall comply with ASME A17.1 and ICC/ANSI A117.1 for all elevators in a bank...

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Section 605.1.3 Platform Lifts

...complying with ICC A117.1 and installed in accordance with ASME A18.1 shall be permitted as component of accessible route.

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Section 605.1.4 Ramps

...steeper than allowed in IBC 1010, reference table 605.1.4...

1:10 – 1:8 max rise 3 inches

1:12 – 1:10 max rise 6 inches

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Section 605.1.5 Dining Areas

...unlike new const., access is NOT required to raised or sunken dining areas or outdoor seating areas provided the same service and decor exists in an accessible space.

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Section 605.1.6 Performance Areas

...where technically infeasible to alter performance areas...at least one of each type shall be made accessible.

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Section 605.1.7 Jury boxes

...access not required within defined area of jury or witness stand where ramp or lift poses a hazard or restricts egress.

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Section 605.1.8 &.9 Dwelling & Sleeping Units

When altering residential units, the accessibility requirements only apply only to the quantity of the spaces being altered at that time.

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Section 605.1.10 Toilet Rooms

...technical infeasibility will permit the unisex toilet room on the same floor in the same area...

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Section 605.1.11 Fitting Room

...technical infeasibility will permit one accessible room on same floor in same area permitted... When fitting rooms provided for separate sex, each to have access as well.

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Section 605.1.13 Thresholds

...3/4” maximum height with beveled edges.

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Section 605.2 Alterations Affecting Areas of Primary

Function

...access to or areas containing a primary function...that route shall be accessible.

Exceptions...• Disproportionate cost – up to 20% of project cost but

no more than needed to achieve full accessibility• Alterations solely to windows, hardware, controls,

etc.• Alterations solely to systems like mechanical,

electrical, fire protection, etc. or to mitigate hazards• Alterations to increase accessibility

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Accessibility

• Primary Function Area Examples• Customer services lobby of a bank• Dining area of a cafeteria• Meeting rooms in a conference

center• Offices and other work areas in

which the activities of the facility are carried out

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Accessibility

• Not Primary Function Areas– Non-occupiable spaces which are frequented

only by repair personnel• Mechanical rooms• Boiler rooms

– Other areas• Supply storage rooms• Employee lounges or locker rooms• Janitorial closets• Restrooms

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Accessible Route to Primary Function Area shall connect/include the

following:–Exterior accessible route–Parking–Loading zones–Entrance– Interior accessible route–Toilet rooms–Drinking fountains–Signage

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Level 1 AlterationsSection 606 Structural

• Generally per IEBC, current structural requirements generally apply to new work or new loads imposed except for <5% load increases

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Level 1 AlterationsEnergy Conservation

• Comm 66.0607/66.0711/66.0808–Except as specified in sub. (2),

additions, alterations, renovations or repairs to an existing building, building system or portion thereof shall conform to the current provisions of the IECC

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Chapter 6Energy Conservation

• Comm 66.0607 Exceptions. All of the following need not comply provided the energy use of the building is not increased.

• Storm windows installed over existing fenestration

• Glass only replacements in an existing sash and frame

• Existing ceiling, wall or floor cavities exposed during construction provided that these cavities are filled with insulation

• Construction where the existing roof, wall or floor cavity is not exposed

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Chapter 7Level 2 Alterations

• Description:– Reconfiguration of space– Addition or elimination of a door or window– Reconfiguration or extension of a system, or– Installation of additional equipment

• Comply with IEBC chs. 6 & 7• New work per IBC, etc., except Note 701.3

Ex. 3 that allows new 50’ deadends• Note 701.3 Ex. 4 that allows 7’ headroom in

new spaces

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Level 2 AlterationsChapter 7 Work Area

Level 2 alteration has < 50% of the building area in (reconfigured) work area (Building area is floor area on all stories measured between exterior walls or firewalls)– Exception for accessibility-only alterations– Work area does not include the addition or

elimination of window, reconfiguration or extension of a system, or the installation of additional equipment

– Not cumulative over time

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Work Area % Determination

• % Work Area = W/(A1+A2) x 100

FirewallWork Area with New Partitions

(Area W)

Building Area A1 Building Area B1

Firewall

Building Area A2Building Area B2

1st Story

2nd Story

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Level 2 AlterationsSection 703

Building Elements & MaterialsCh. 7 Approach - Additional limited

improvements to systems such as vertical openings, fire protection systems, structural system and means of egress are triggered. Compliance with both Chapters 6 and 7 is applicable– Triggers based on specific thresholds– Sometimes only in work areas (reconfigured

areas)– Supplemental requirements where work area on a

floor exceeds 50%

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Level 2 AlterationsSection 703 cont.

• Stair Enclosures – Existing openings connecting 2 or more floor levels shall be enclosed with 1 hour fire rated construction within the work area

• Many exceptions apply (14)• Exception 2 – Can use blocking for mechanical

chases• Exceptions 4-14 are for specific occupancies

groups – may go down to 30 min. enclosures < 3 stories

• Per 601.2 one can’t make situation less safe than IBC.

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Level 2 AlterationsSection 703.2.2

• Supplemental shaft and floor opening enclosure requirements– Where the work area on any floor exceeds

50% of that floor area, the enclosure requirements of Section 703.2 shall apply to vertical openings other than stairways throughout the floor.• Exception – Vertical openings located in

tenant spaces that are entirely outside the work area

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• Supplemental stairway enclosure requirements– Where the work area > 50% of that floor’s

area, stairways that are part of the means of egress serving the work area shall, at a minimum, be enclosed with smoke-tight construction on the highest work area floor and all floors below.

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Level 2 AlterationsSection 704.2 Sprinklers

• Sprinkler requirements for– High-rise buildings– Listed occupancies– Windowless stories

• But not applicable unless the building has sufficient municipal water supply for design of a fire sprinkler system available to the floor without installation of a new fire pump

• WI amendment allows omission of sprinklering in inaccessible existing cavities

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Level 2 AlterationsSection 704 - Other Fire Protection

Requirements

• Standpipes- Required where the work area includes exits or corridors shared by more than one tenant and is located more than 50 ft above or below the lowest level of fire department. See exceptions.

• Fire Alarms – In work areas. See occupancy requirements of 704.4 and the IFC

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Level 2 AlterationsSection 705 Means of Egress

• Note that per IEBC 705.1, this whole section only applies where egress is shared by multiple tenants in the work area

• Topics– Number of exits– Fire Escapes, including new ones– Doors– Corridor Openings– Dead End Corridors– Means of Egress Lighting– Exit Signs– Handrails

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Level 2 AlterationSection 706 Accessibility

• IEBC 706.2 – If a new stair or escalator is installed, then analyze the served levels for vertical accessibility per new construction standards

• May apply disproportionality

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Chapter 8Level 3 Alterations

• Description (IEBC 405.1)–Alterations where the work area is >

50% of the aggregate area of the building

–Comply with IEBC chs. 6, 7 & 8– IEBC 801.3 modifies IEBC 705 Means

of Egress to apply to single tenant spaces too

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Level 3 Alterations IEBC 803.1 - Shafts

• IEBC 803.1— From the highest work area floor, regardless of % work area on that floor, enclose, per IEBC 703.2.1, all existing stairways that are part of the means of egress down to the level of exit discharge :

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• Sprinklers in High Rise Buildings (>75”) where the building has sufficient municipal water supply system to the site– In work areas– And where the work area > 50% of the area

on a floor that has corridors which are shared or serve > 30 persons, then throughout the floor except in tenant spaces totally outside the work area

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Level 3 AlterationsSection 804.2 – Fire Alarms

• Required per IEBC 704.4 throughout the building, with exceptions

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Comm 66.0809 - Potty Parity

• Level 3 alterations “where the public congregates” requires 2x plumbing fixtures for females vs. males

• Where the public congregates: >500 persons at an amusement facility, convention center, sports arena, recreation center, stadium, airport or depot

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IEBCChapter 9 – Change of

Occupancy

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Change of OccupancyIEBC 901

901.1 Chapter 9 applies where:– There is a change in purpose or level of activity

within a building,– There is a change in occupancy group (from one

group use to another), or– There is a change of occupancy classification

(from one classification within the same Group to another classification in the Group i.e. A-3 to A-2)

– Look at actual current use (or last use, if currently vacant), not previous broad approval

– Remember <10% accessory use design option

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• 901.2 Where there is an increase in occupant load but no change in occupancy classification, just apply:– IEBC 907 – Structural– IEBC 908 – Electrical– IEBC 909 – HVAC– IEBC 910 – Plumbing– Any applicable alteration chapter(s).

• (Other Ch 9 sections are scoped to changes in occupancy classification)

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• 901.3 Where the occupancy classification of a building changes, provisions of sections 902 thru 912 are applicable. IEBC 912.1.1 requires compliance with chs. IEBC 8, 7 & 6, per the scoping of the sections in those chapters, e.g. “in work areas”.

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• Comm 66.0901(2) Buildings undergoing a change of occupancy that would result in an increase in demand for fossil fuel or electrical energy shall comply with IECC.

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Change of OccupancyIEBC 902 Special Use &

Occupancy• Where the use of an existing building is changed

to one of the following occupancies the building shall comply with all applicable requirements of the IBC:

1. Covered mall buildings,2. Atriums,3. Motor-related occupancies,4. Air-craft related occupancies,5. Motion picture projection rooms,6. Stages and platforms,7. Special amusement buildings,8. Incidental use areas,9. Hazardous materials.

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Change of Occupancys. Comm 66.0910 - Toilets

• Allows up to a 20% increase in occupant load in a story before additional sanitary fixtures are required

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Change of OccupancyIEBC 911 Other Requirements

• IEBC 911 Light & ventilation shall comply with the requirements of IBC for the new occupancy

• Comm 62.0911 At least one existing elevator shall be provided with emergency recall operation and emergency in-car operation complying with Comm 18 when an existing building or structure greater than 60 feet is changed to a Group R-1 or R-2 occupancy.

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Change of OccupancyIEBC 912.1.1.1 Change of Occupancy

Classification Without Separation

• If new occupancy is not separated from the remainder of the building with fire barriers per IBC 508.3.3, the entire building shall comply with all requirements of IEBC chapter 8 (Level 3 Alterations) applied throughout the entire building for the most restrictive occupancy classification in the building (Not applicable to Ch 9 requirements)

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Change of OccupancyIEBC 912.1.2 Fire Protection & Interior

Finish

• 912.1.2 Provisions of sections 912.2 & 912.3 for fire sprinklers, alarms and and interior finish apply to all buildings undergoing a change of occupancy classification.– Sprinkler thresholds area based on

whether fire barriers are provided per IBC T. 706.3.9

– But install in the actual physical area of the change

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Change of OccupancyHazard Categorization

• Hazard comparisons and code applications for:– IEBC 912.4 - Means of Egress– IEBC 912.5 - Heights & Areas– IEBC 912.6 - Exposure of Exterior

Walls

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TABLE 912.4TABLE 912.4

HAZARD CATEGORIES AND CLASSIFICATIONS: MEANS OF EGRESS

RELATIVE HAZARD OCCUPANCY CLASSIFICATIONS

1 (Highest Hazard)

2

3

4

5

H

I-2, I-3, I-4

A, E, I-1, M, R-1, R-2, R-4

B, F-1, R-3, S-1

F-2, S-2, U(Lowest Hazard)

Typical Hazard Comparison Table:

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IEBC 912.4 Means of Egress

• 912.4.1 Where the means of egress for change of use is to a higher hazard occupancy classification then the means of egress shall comply with the requirements of chapter 10 of the IBC.Exceptions:– Stairways can instead be enclosed in accordance with the

applicable requirements of IEBC section 803.1– Existing stairways including handrails and guards

complying with IEBC chapter 8 are permitted for continued use subject to approval of the code official

– Stairways replacing existing where the slope cannot be reduced because of existing construction are not required to comply with riser height or tread depths of IBC

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IEBC 912.4 Means of Egress

• 912.4.2 Where the means of egress for change of use is to an equal or lower hazard occupancy classification then the means of egress shall comply with the requirements of IEBC section 805 for the new occupancy classification. Newly constructed or configured means of egress shall comply with the requirements of chapter 10 of the IBC.Exception:– Stairways replacing existing where the slope

cannot be reduced because of existing construction are not required to comply with riser height or tread depths of IBC.

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IEBC 912.4 Means of Egress – Any Change of Occupancy Class

• 912.4.3 Egress capacity shall meet or exceed the occupant load as specified in the IBC for the new occupancy.

• 912.4.4 Existing stairways shall comply with handrail requirements of IEBC section 705.9 in the area of change of occupancy classification.

• 912.4.5 Existing guards shall comply with requirements of IEBC section 705.10 in the area of change of occupancy classification.

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Change of UseIEBC 912.7 Enclosure of Vertical

Shafts

• If change of occupancy to a higher hazard per IEBC 912.4 for Means of Egress, then generally enclose per IBC with some exceptions

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Change of UseIEBC 912.8 Accessibility

• Existing buildings or portions thereof that undergo a change of Group or occupancy classification shall have all of the following accessible features:

1. At least one accessible entrance2. At least one accessible route from an accessible building

entrance to primary function areas3. Signage complying with IBC section 11104. Accessible parking when parking is provided5. At least one accessible loading zone when loading zones

are provided6. An accessible route connecting accessible parking and

loading zones to the accessible building entrance(Does not include toilets)

Revised 2009 IBC amendment to only require the above if the whole building changes occupancy type.

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• When it is technically infeasible to comply with the new construction standards for any of the previous six requirements for a change of Group or occupancy, the items shall comply with the requirements to the maximum technically feasible.

• Exception for 20% disproportionality also allowed.

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Exception:EXCEPTION STATES: Type B dwelling or sleeping units required by section 1107 of the IBC are not required to be provided in existing buildings and facilities.

Note: If there is a change of occupancy from say R-1 to R-2, this exception to not provide type B dwelling units would stand. If remodeling accompanies the change of occupancy then the IEBC chs. 6-8 applies, as well as the statutory provisions for remodeling, and some type B units may then be required.

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IEBCChapter 10 - Additions

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• An addition is defined as the extension or increase in the floor area (including mezzanines), number of stories or height of a building.

• 1001.1 additions to a building shall comply with the IBC for new construction

• Where an addition impacts the existing building that portion shall comply with the requirements of IEBC.

• An addition shall not create or extend any nonconformity in the existing building, as may occur without a firewall separation

Additions IEBC 1001 - General

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AdditionsIEBC 1002 - Height & Area

• Infilling of floor openings and creation of non-occupiable appendages such as elevator and stair shafts are not considered additions

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Un-separated Addition

• Consider the greater building height and combine the fire and building areas of the new and old if no firewall or fire barrier

• Consider the greater building height and combine the building areas of the new and old if only a fire barrier

Essi

Existing

Addition

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Separated Addition

• Even with a firewall separation, the addition may create a non-compliance in the existing building, which is prohibited by IEBC 1001.2

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AdditionsPre-IBC Unlimited Area Building With Firewall Separation from an Addition

Existing limited area or pre-IBC unlimited area building

Addition

Fire wall

Addition removes one street exposure that was required by previous code requirement so street on right side of existing building must be provided on top side of building or current area requirements for existing building must be complied with.

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AdditionsIBC CODE Unlimited Area Building With

Addition

Existing unlimited area building Addition

Addition will have to be provided with a 60 ft clear space all around building or petition for variance on existing building needs to be submitted or existing building needs to comply with limited area requirements of IBC.

60’

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AdditionsIEBC 1002 Heights & Areas

• If no firewall or fire barrier provided:– Check combined height and area per IBC

Ch.5– 1002.3 existing fire areas increased by the

addition shall comply with chapter 9 of the IBC.

• Exception for area created by in-filling of floor openings and non-occupiable appendages such as elevator and exit stair shafts.

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Revised Comm 66.1002 – Sprinklering of Townhouse

Additions• If the townhouse does

not have sprinklers, an addition to an existing dwelling unit will not trigger sprinklers to be installed

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AdditionsIEBC 1003 Structural Analysis of

Existing Building

• Gravity loads• Wind loads• Snow loads• Flood load

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AdditionsIEBC 1004 Smoke Alarms in

Groups R-3 & R-4

• 1004.1 when an addition is made to a building of a Group R-3 or R-4 occupancy, the existing building shall be provided with smoke alarms as required by the IBC.

• If the addition is separated from the existing building by a fire wall then compliance with this section of the code is not required.

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AdditionsIEBC 1005 Accessibility

• 1005.1 accessibility provisions for new construction shall apply to additions. Additions that affects the accessibility to, or contains an area of primary function shall comply with the requirements of section 605.

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IEBC 11 Historic Buildings

Any building that is:• Listed or nominated to be on the national register of historic

buildings by the state historical society.• Included in a district which is listed on, or has been

nominated by state historical society for listing on, the national register of historic places in Wisconsin, & has been determined by the state historical society to contribute to the historical significance of the district.

• Listed on a certified municipal register of historic property• Included in a district which is listed on a certified municipal

register of historic property, and has been determined by the municipality to contribute to the historic significance of the district.

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Historic BuildingsIEBC 11 Purpose

• Liberalizes the IEBC requirements in order to preserve the historic fabric of the building

• IEBC chapter 11 works with other chapters per IEBC 408.2 notation.

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Historic Buildings1101.3 Museums

• Museums < 3000 sf & Group R-3 also used for A, B or M occupancy shall be viewed as Group B.

• Can limit the occupant load of museums or require supervision (such as a tour guide).

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Historic Buildings1102.3 Relocations

• New foundation meets IBC• Location on site meets IBC• Remainder of building

considered historic & meets IEBC chapter 11

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Historic Buildings1102.5 Replacements

• Replacement of existing or missing pieces may be:–With either original materials.–Partial replacements for repairs that

matches the original in configuration, height, and size.

• Except safety glazing shall be per current code

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Historic Buildings1103.1 Scope

• Historic buildings shall comply with IEBC 1103 if they are undergoing:–Alterations–Change of occupancy–That are moved (unless use ch. 12)

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Historic Buildings1104.1 Accessibility

• Accessibility alterations must meet IEBC 605, unless technically infeasible. Where the accessible requirements would threaten or destroy historic significance, code official may allow alternatives.

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Historic Buildings1104.1.1-1104.1.4 - Accessibility

• At least one main entrance accessible.• Accessible route from accessible entrance to

public spaces on the level of entrance.• If main entrance is not made accessible,

then provide either an accessible unlocked nonpublic entrance or remote notification serving accessible locked entrance.

• Accessible toilets or unisex toilet room.

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Historic Buildings1105.1 - Change of Occupancy

• Follow IEBC chapter 9, except where specifically mentioned in 1105.2 to 1105.15 provisions.

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Historic Buildings66.1101(2) Exhibit Buildings

• Special limitations for historic buildings which are used as exhibit buildings are provided with nine special items that must be met. Some of these are similar to museum limits in IEBC 1101.3 requirement.

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Historic Buildings1106.1 Structural

• Alternative code official judgment may accept existing floors or use limits.

• Unsafe elements, components or a portion of the building determined by the code official as dangerous, thus shall be repaired, strengthened or replaced.

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IEBCChapter 12 – Relocated or

Moved Buildings

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Relocated BuildingsIEBC 1201 General

• Not applicable to re-used building materials – the building must be moved as a whole or sections that enclose space to be considered a moved building

• Any repair, alteration, or change of occupancy within the moved structure shall comply with the requirements of this code applicable to the work being performed

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Relocated BuildingsIEBC 1202 Site Requirements

• 1202.1 building shall be located on lot in accordance with requirements of IBC

• 1202.2 foundations system of relocated buildings shall comply with requirements of IBC

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Relocated BuildingsIEBC 1202 Structural

Requirements• 1202.3 buildings shall comply with IBC

wind load provisions as applicable. Exception: structural elements whose stress is not increased by more than 5%.

• 1202.4 buildings shall comply with IBC for seismic provisions as applicable. Exceptions: structures in design category A & B where the seismic loads at the new location are not higher than those at the previous location, & structural elements whose stress is not increased by more than 5%

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Relocated BuildingsIEBC 1202 Structural Requirements cont.

• 1202.5 structures shall comply with IBC snow load provisions where snow loads at new location are higher than those at previous location.

• Exception: structural elements whose stress is not increased by more than 5%.

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IEBC 13Performance Compliance

Method

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Performance Compliance Methods

1301.1 Scope

• Scope of chapter 13 permits the existing building to comply with this chapter for covered topics, instead of complying with chapters 4 to 12.

• Point system – similar to previous ch. Comm 70 – alternative to numerous petitions

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66.1301(1) Eligible Use Groups• Methods of IEBC 1301.2.1 to

1301.2.5 are available for occupancy groups A, B, E, F, M, R & S.

• Groups H & I cannot use IEBC chapter 13.

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1301.2.2 Partial Use Change• Partial change in occupancy options:1) If separated by fire barrier, then only

portion changed shall be made to conform to the provisions of this section.

2) If unseparated by fire separation to IBC Table 508.3.3, then whole building must comply. If conflict, use more strict.

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1301.2.3 Additions• Additions shall comply to the IBC &

IEBC for new construction.• Existing plus addition height & area

shall meet limitations of IBC chapter 5.

• Fire walls shall permit the addition to be regulated as a normal separated building.

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Comm 1301(2) - Accessibility

• Accessibility per IEBC 310 is required for all portions of the buildings proposed for change of occupancy or alteration

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1301.4 Structural• Investigation & evaluation via:• 1301.4.1 Structural analysis to IBC

16 • 1301.4.2 Submittal of results and

analysis• 1301.4.3 Code official determines

compliance using evaluation process of sections 1301.5 to 1301.9

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1301.5 Evaluation Criteria• Evaluation is comprised of 3

categories:

1) 1301.5.1 Fire safety

2) 1301.5.2 Means of egress

3) 1301.5.3 General safety

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1301.6 Evaluation

• No separation – evaluate each occupancy and apply the lowest score to the whole building.

• With occupancy separation – evaluation of each portion of the building is separate for that occupancy. Each separated part will then have a separate score evaluated.

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TABLE 1301.7SUMMARY SHEET--BUILDING CODE

Existing occupancy _______________ Proposed occupancy _______________

Year building was constructed ______ Number of stories ___ Height in feet ____

Type of construction __________________ Area per floor __________________

Percentage of frontage increase ____ % Percentage of height reduction___ %

Completely suppressed: Yes ____ No ___ Corridor wall rating ______________

Compartmentation: Yes ____ No ____ Required door closers: Yes ___ No ___

Fire-resistance rating of vertical opening enclosures ______________________

Type of HVAC system _________ Serving number of floors __________

Automatic fire detection: Yes ____No ____ Type and location ______________

Fire alarm system: Yes ____No ___ Type ____________________________

Smoke control: Yes ____No ___ Type _________________________________

Adequate exit routes: Yes ____No ____ Dead ends: Yes ___No ____

Maximum exit access travel distance ______ Elevator controls: Yes ___ No ___

Means-of-egress emergency lighting: Yes__ No_ Mixed occupancies: Yes__ No_

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SAFETY PARAMETERS FIRE SAFETY (FS)

MEANS OF EGRESS (ME)

GENERAL SAFETY (GS)

1201.6.1 Building Height 1201.6.2 Building Area1201.6.3 Compartmentation

1201.6.4 Tenant & Dwelling Unit Separations1201.6.5 Corridor Walls1201.6.6 Vertical Openings

1201.6.7 HVAC Systems 1201.6.8 Automatic Fire Detection1201.6.9 Fire Alarm System

1201.6.10 Smoke Control 1201.6.11 Means of Egress Capacity1201.6.12 Dead Ends

N.A. N.A. N.A.

1201.6.13 Maximum Exit Access Travel Distance1201.6.14 Elevator Control1201.6.15 Means of Egress Emergency Lighting

N.A.

N.A.

1201.6.16 Mixed Occupancies 1201.6.17 Automatic Sprinklers1201.6.18 Standpipes1201.6.19 Incidental Use Area Protection

N.A.Divide by 2

Building Score --- Total Value

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Performance Compliance MethodsTable 1301.9 Evaluation Formulas

FORMULA T1301.7 T1301.8 SCORE PASS FAIL

FS - MFS > 0ME - MME ≥ 0GS - MGS ≥ 0

___ (FS) - ___ (MFS) = ___ ___ ______ (ME) - ___ (MME) = ___ ___ ______ (GS) - ___ (MGS) = ___ ___ ___

FS = Fire Safety MFS = Mandatory Fire Safety

ME = Means of Egress MME = Mandatory Means of Egress

GS = General Safety MGS = Mandatory General Safety

1 2009 international existing buildings code (iebc) & comm 66 fundamentals & revisions

Documents

change of use slide

historic buildings chapter

wi chapter

new buildings

reuse of existing buildings

code slide

iebc background slide

noncommercial use