Oregon Building Code Interpretation 2011

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Interpreting Building Codes

April 2011 1PINNELLBUSCH

Smith Freed & Eberhard PC

OSB Construction Law

Brown Bag Lunch Series

April 12, 2011

Presented by:

Greg Mockford, AIA CSI LEED AP

Art Davis, AIA CSI CDT

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1. Building Codes Origin

2. Building Codes Process

3. Building Codes Evolution (Oregon)

4. Building Codes Application (Oregon)

5. Examples

INTRODUCTION

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• 146 garment workers died within 18 minutes

• Causes:• No building codes

• Inadequate exits

• Highly combustible materials

• No fire sprinklers

MODERN BUILDING CODES – ORIGIN

March 25, 1911 - Triangle Shirtwaist Factory Fire, New York City

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• Social Effects• Fire / Building Codes

• Workplace safety rules

• Labor unions strengthened and emboldened

MODERN BUILDING CODES – ORIGIN

March 25, 1911 - Triangle Shirtwaist Factory Fire, New York City

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MODERN BUILDING CODES – PROGRESSION

• 1905 building code recommended by the National Fire Underwriters

• 1920’s several organizations started developing codes separately

• Building Officials and Code Administrators International (BOCA)

• International Conference of Building Officials Inc. (ICBO)

• Southern Building Code Congress Inc. (SBCCI)

• They published separate codes

• BOCA National Building Codes

• Uniform Building Codes

• Standard Building Codes

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MODERN BUILDING CODES – PROGRESSION

• 1994 the major organizations agreed to develop a unified building code

• Formed the International Code Council (ICC)

• The first generation of current code was published as the International Building Code (IBC) in 2000.

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PROCESS – Code Adoption & Enforcement

Model Code Development

Construction Documents

Adoption by State

State Admin. Changes

Local Building Code Enforcement Construction

Period

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PROCESS – Model Code Development

• 3-year change cycle• A Committee Review

& Approval ProcessInput from:• Code Officials• Industry

Associations • Design

Professionals• Life/Safety Experts• Others of the public

• No force of law



Adoption by State



Period

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PROCESS – Adoption by Jurisdiction• 3-year change cycle

• 1-2 year offset from Model Codes

• Committee Review & Recommendations

Input from:• Code Officials• Industry

Associations • Design

Professionals• Others of the public

• Administrative Adoption



Adoption by State



Period

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PROCESS – Jurisdictional Changes (Oregon)

• Included• Mid-cycle

Amendments

• Committee Review Process

• Input from public

• Administrative Adoption



Adoption by State



Period

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• Documents Prepared• By:

• Architects / Engineers• Designers• Contractors• Owners

• Include:• Drawings• Specifications• Alternate Materials &

Methods approval requests

• Submitted by:• Owner (typical)• A/E or Designer or

Contractor



Adoption by State



Period

PROCESS – Enforcement

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• Agency Enforcement• “Plan Check” Reviews

• Zoning / Land Use• Fire Life Safety• Structural• MEP & other

• Action on “appeals” • Corrections list(s)• Identify additional

requirements • Special Inspections• Deferred Submittals

• Plan Check Abandonment

• 180 days



Adoption by State



Period


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• Contractor’s Role (re: Compliance)

• Obtain Permits (typical)• Coordinate Agency

Inspections• Coordinate Special

Inspections• Make Deferred Submittals• Act on Corrective Notices

• Architect / Engineer Role (re: Compliance)

• Architect - Perform Periodic Observations

• Engineer – Perform Special Inspections

• Review & accept Deferred Submittals



Adoption by State



Period


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• Agency Enforcement• Perform Required

Inspections• Require completion of

Special Inspections• Review and act upon

Deferred Submittals• Issue Corrective

Notices as needed• Issue Occupancy

Permit• Act on Permit

Abandonment (180 days of inactivity)



Adoption by State



Period


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Who interprets For Regulatory Enforcement

• The Building Official of the Authority Having Jurisdiction

Who Uses & Functionally Interprets

• Agency Plans Examiners and Inspectors

• Architects / Engineers• Designers• Contractors• Owners & Facility Managers• Fire Safety Experts• Industry Experts• Construction Defect Experts • Attorneys• Others

Who Uses and Interprets Building Codes

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Building Codes• Oregon Structural

Specialty Code• Oregon Residential

Specialty Code• Oregon Energy

Efficiency Specialty Code• Oregon Electrical

Specialty Code• Oregon Mechanical

Specialty Code• Oregon Plumbing

Specialty Code• Oregon Elevator

Specialty Code

PROCESS – Laws Applying to Construction in Oregon

Other Laws and Rules: (situation dependent)

• Local Land Use (Zoning)• Consumer Product Safely

Laws (e.g., safety glass)• Environmental regulations

(Federal, State, regional and local)

• Condominium Acts• Oregon• Washington

• ADA

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Building Codes• Oregon Structural

Specialty Code• Oregon Residential

Specialty Code• Oregon Energy

Efficiency Specialty Code• Oregon Electrical

Specialty Code• Oregon Mechanical

Specialty Code• Oregon Plumbing

Specialty Code• Oregon Elevator

Specialty Code

Other Laws and Rules: (situation dependent)

• Local Land Use (Zoning)• Consumer Product Safely

Laws (e.g., safety glass)• Environmental regulations

(Federal, State, regional and local)

• Condominium Acts• Oregon• Washington

• ADA

PROCESS – Focus of Today’s Presentation

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• Work Requiring Permit• New Construction• Alterations and Remodels• Repairs and Modifications • Changes to Use (i.e., Occupancy)

• Issues & Systems• Structural Systems (gravity, wind, seismic)• Fire Life Safety (use & occupancy, exiting,etc.)• Accessibility, including accessible routes (presumptive ADA

compliance)• Energy (insulation, glazing performance, lighting & power consumption)• Building Envelope

[2010 OSSC Section 105.1]

PROCESS – What do the OSSC & ORSC regulate?

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Exempt from OSSC & ORSC Permit:• Detached structures not exceeding 120 square feet.• Retaining walls not over 4-feet high.• Walks, drives & platforms not more than 30-inches above grade,

not above occupied space, and no on an accessible route.• Painting, papering, tiling, carpeting, cabinets, counter tops, and

similar work.• Non-fixed & movable fixtures, casework, rack, counters and

partitions not more than 5-feet 9-inches in height.• Other

[2010 OSSC Section 1.05.2]


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Existing Structures• Maintenance

• “Maintenance. Not adopted by the State of Oregon.”

• Maintenance of the building envelope not required.

• Compliance• “Compliance. Alterations,

repairs, additions, and changes of occupancy…comply with Fire Code…and Residential Code…”

[2010 OSSC Sections 3401.2 and 3401.3]

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Oregon Building Codes

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Contents – 2010 OSSC1-2 Administration

and definitions

3 Use & occupancy classifications

4,31 Special requirements

5-6 Height & area limitations

7-9 Fire protection

10 Evacuation

11 Disability Access

12-13,27-30 Building systems

14-26 Structural components

32 Encroachment

33 Safeguards

34 Existing building allowances

35 Referenced standards

APPLICATION – Oregon Structural Specialty Code

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• Chapter 1• “…to promulgate a state building

code to govern the construction, reconstruction, alteration and repair of buildings…and to require correction of unsafe conditions…establish uniform performance standards…”



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• Occupancy Type (i.e. Use)• Assembly: Groups A (1-5)

• Business: Group B

• Educational: Group E

• Factory/Industrial: Group F (1-2)

• High Hazard: Group H (1-5)

• Institutional: Group I (1-4)

• Mercantile: Group M

• Residential: Group R (1-4)

• Special and Utility: Group SR (1-4), Group S (1-2), and Group U



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• Construction Type

• Types I & II• All Building Elements are

Non-Combustible (i.e., steel, concrete, masonry)

• Type III• Exterior Walls are Non-

Combustible

• Type IV• Heavy Timber

• Type V• Any Permitted Material

[2010 OSSC Section 602]


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• Allowances• Construction Type

• A or B (Fire Resistance Rating)

• Occupancy (i.e., Use)• Size

• Maximum Heights• Maximum Square Footage

[2010 OSSC Table 503]

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Detailed Provisions• Structural Components

[2010 OSSC Chapters 12-30]

• Gravity• Seismic• Wind

• Exterior Wall Construction[2010 OSSC Chapter 14]

• Allowable Materials• Weather Resistive• Other

• Means of Egress[2010 OSSC Chapter 10]

• Doors• Corridors• Stairs

• Accessibility [2010 OSSC Chapter 11]

• Presumptive compliance with the Americans with Disabilities Act

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Detailed Provisions• Occupancy

[2010 OSSC Chapter 3]

• Fire Resistance • Means of Egress

• Interior Environment [2010 OSSC Chapter 12]

• Ventilation• Light

• Fire Resistance of Materials[2010 OSSC Chapters 7-8]

• Location on Property• Distance to Public Way• Distance to Other

Structures• Fire Protection

[2010 OSSC Chapter 9]

• Fire Alarm• Fire Sprinklers• Installation Under NFPA

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Detailed Provisions• Energy Conservation

• Before 2010: Regulated by OSSC• 2010: Regulated by 2010 OEESC

• Primarily regulates• Wall, floor & roof insulation• Glazing & fenestration thermal performance.

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APPLICATION – Oregon Residential Specialty Code

Contents – 2008 ORSC1-2 Administration and definitions

3-10 Building Planning and Construction

11 Energy Conservation

12-23 Mechanical

24 Fuel Gas (Gas Fireplaces, etc.)

43 Reference Standards

Appendices A-R

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• Chapter 1• “The provisions of this code shall

apply to the construction, alteration, movement, enlargement, replacement, repair, equipment, use, occupancy and location of detached one- and two-family dwellings and townhouses not more than three stories above grade in height with a separate means of egress and their accessory structures”

[2008 ORSC R102.2]


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• Occupancy• Detached one- and two-family

dwellings & townhouses: Group R-3

• Family Daycare or Foster care

• Detached Congregate Residences

[2008 ORSC R102.2]


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• Construction Type• “The requirements of this code are

based on platform and balloon-frame construction for light-frame buildings…Other framing systems must have equivalent detailing to ensure force transfer, continuity, and compatible deformations.”

[2008 ORSC R301.2]

• Size• Maximum Height – 3 Stories

• Maximum Square Footage – Not Regulated


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• OSSC & ORSC• Oregon Added Language in the

OSSC 2004 Adopted Code to deal with the confusion.

• “Exception: Detached one- and two-family and multiple single family dwellings (town homes) not more than three stories above grade plane in height with a separate means of egress and their accessory structures shall comply with the ORSC.”

• What does in NOT Regulate


APPLICATION – MULTI-FAMILY

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ORSC (Before 2004)

OSSC (Before 2004)

APPLICATION – MULTI-FAMILY

OSSC (After 2004)

ORSC (After 2004)

?

?

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• Other Resources

• Commentary

INTERPRETATION TOOLS

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• Other Resources

• Illustrated

INTERPRETATION TOOLS

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1. Residential Windows

2. Rain Screen

3. EIFS

EXAMPLES

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• Manufacturer’s Design• Wind Design Pressure criteria

• Tested per AAMA / ANSI• Labeling per AAMA 506, or ASTM

E1886 & E1996

• Waterproof Integration• “Windows and sliding doors shall be

installed in accordance with the fenestration manufacture’s written installation instructions.”

[2008 ORSC Section R613.1]

• Emergency Escape

EXAMPLES – RESIDENTIAL WINDOWS

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R703.1 General• The exterior wall envelope to be

designed and constructed• to prevent the accumulation of water within

the wall by providing • a water resistant barrier behind the

exterior veneer• a minimum 1/8” space between

WRB & veneer• integrated flashings

• Exceptions1. Cladding over concrete or masonry if

other conditions are met.2. Walls tested to show resistance against

wind driven rain

[2008 ORSC Section R703 Exterior Covering]

EXAMPLES – RAINSCREEN

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R703.2 Weather resistive barrier (WRB)• (1) Layer 15# felt complying with ASTM

D226 or other approved • Laps

• Upper layer over lower– 2”• End laps – 6”

• Continuous top to bottom• Terminated per R703.1

• Proscriptive requirements – does not refer to manufacturer’s installation requirements


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R703.3 Wood, hardboard & wood structural panel siding

R703.4 Attachments• Corrosion resistant fasteners

R703.5 Wood shakes & shingles

R703.6 Exterior plaster (aka stucco)

R703.7 Stone and masonry veneer


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R703.8 Flashing• Applied to prevent

• Entry of water into the wall cavity• Or penetration into framing

components

• Required at • Windows and doors extending to

surface of the exterior finish or to the WRB for drainage

• Continuously above projecting wood trim

• Where decks or porches attach to walls or floors

• Other locations


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R703.9 Exterior Insulation Finish System• Shall be installed in accordance with

manufacturer’s installation instructions• WRB

• installed between water-sensitive elements • and shall have a means of draining water

to the exterior

• Flashing per R703.8

• 2007 Barrier EIFS Ban republished


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2007 Oregon Barrier EIFS Ban• New barrier EIFS installations banned

in 2007• No affect on “drainage” (water

managed) EIFS• Allows repair of existing barrier EIFS

systems• Allows replacement of existing barrier

EIFS systems with new barrier EIFS• Allows barrier EIFS installation over

concrete or masonry• Allows architectural features not

protecting an interior space

EXAMPLES – EIFS

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2008 Statewide Interpretation• Confirms

• Water managed EIFS is allowed

• Repair or replacement of existing barrier EIFS is allowed

• Barrier EIFS application over concrete or masonry is allowed

• Clarifies• Barrier EIFS is allowed on

architectural features not protecting an interior space • For example: Porte-cochere,

and the like.

EXAMPLES – EIFS

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END

Oregon Building Code Interpretation 2011

Design

Transcript of Oregon Building Code Interpretation 2011