CHAPTER 6. BUILDINGS AND BUILDING REGULATIONSCHAPTER 6. BUILDINGS AND BUILDING REGULATIONS\Article IV. International Residential One & Two Family Dwelling Code

This article, including the standard code adopted hereby and amendments thereto incorporated by reference, shall constitute the minimum standards for the construction, reconstruction, alteration, remodeling, use, occupancy, location or maintenance of buildings and structures for one and two family structures.

(Code 2015)

The “International Residential One and Two Family Dwelling Code, 2012 Edition”, published by the International Code Council, Inc., and all amendments, supplements and appendices thereto, is hereby incorporated by reference and made a part hereof as if fully set out herein save and except certain parts, sections or portions thereof specifically referred to and omitted there from or as amended or modified herein. The “Standard Code” or “Residential One and Two Family Dwelling Code” hereinafter referred to in this section is the “International Residential One and two Family Dwelling Code, 2012 Edition”, of the International Code Council Inc., 500 New Jersey Avenue NW 6th Floor, Washington DC 20001, and is hereby incorporated by reference as the 1 & 2 Family Residential Code of the City of Ottawa, Kansas.

(Code 2015)

One copy of the standard code with supplements and amendments are filed in the office of the city clerk and identified, marked or stamped as provided by statute K.S.A. 12-3010, shall be filed with the City Clerk and shall be open to inspection and available to the public during reasonable business hours. The aforesaid code is hereby incorporated by reference as fully as if set out at length herein, and the provisions thereof, unless otherwise specifically provided for in this article, shall be controlling with respect to all subjects and matters therein contained within the corporate limits of the city and the Urban Growth Area.

(Code 2015)

As referenced and adopted by the City of Ottawa in the International Building Code, Article I, Section 6-104 of the Municipal Code.

(Code 2015)

Determination of, and condemnation of, dangerous or unsafe structures shall be governed by Ordinance 3202-96, Chapter VI, Article VI of the Municipal Code.

(Code 2015)

Permit fees shall be set by resolution.

(Code 2015)

In case of any difference of opinion in regard to the meaning of any of the rules mentioned or provided for in this article, the decision of the Chief Building Official shall be observed.

(Code 2015)

Any person, firm, or corporation violating any provisions of this article shall be deemed guilty of a Class B misdemeanor and, upon conviction thereof, shall be punishable by a fine of not less than $50.00 nor more than $500.00, or by imprisonment not to exceed 30 days, or by both such fine and imprisonment. Each separate day or part thereof .shall constitute a separate offense.

(Code 2015)

Section R101.1 Title. These provisions shall be known as the Residential Code for One- and Two-family Dwellings of the City of Ottawa and shall be cited as such and will be referred to herein as “this code.”

Section R103 Community Development Department.

Section R103.1 Creation of enforcement agency. The official in charge of enforcement of the code shall be known as the Chief Building Official.

Section R103.2 Appointment. The building official shall be appointed by the chief appointing authority of the jurisdiction. Delete this section.

Section R105.2 -- Work exempt from permit. Permits shall not be required for the following. Exemption from permit requirements of this code shall not be deemed to grant authorization for any work to be done in any manner in violation of the provisions of this code or any other laws or ordinances of this jurisdiction.

Building:

1.    One-story detached accessory structures used as tool and storage sheds, playhouses and similar uses, provided the floor area does not exceed 200 square feet (18.58 m2). Delete this item from work exempt from permit.

2.    Fences not over 7 feet (2134 mm) high. Delete this item from work exempt from permit.

3.    Retaining walls that are not over 4 feet (1219 mm) in height measured from the bottom of the footing to the top of the wall, unless supporting a surcharge. Delete this item from work exempt from permit.

4.    Water tanks supported directly upon grade if the capacity does not exceed 5,000 gallons (18,937 L) and the ratio of height to diameter or width does not exceed 2 to 1. Delete this item from work exempt from permit.

5.    Sidewalks and driveways on private property.

6.    Painting, papering, tiling, carpeting, cabinets, counter tops and similar finish work.

7.    Prefabricated swimming pools that are less than 24 inches (610 mm) deep.

8.    Swings and other playground equipment

9.    Window awnings supported by an exterior wall which do not project more than 54 inches (1372 mm) from the exterior wall and do not require additional support.

10.  Decks not exceeding 200 square feet (18.58 m2) in area, that are not more than 30 inches (762 mm) above grade at any point, are not attached to a dwelling and do not serve the exit door required by Section R311.4. Delete this item from work exempt from permit.

11.  Any building or structure defined as an agricultural building in Section 202 of the 2012 International Building Code. Except for those agricultural buildings located with the City limits of Ottawa.

Section R105.10 Homeowner Permit Issuance. Any permit required by this code may be issued to any person to do any work regulated by this code in a single-family dwelling used exclusively for living purposes, including the usual accessory buildings and quarters in connection with such buildings in the event that any such person is a bona fide owner of any such dwelling and accessory buildings and quarters, and that the same are currently occupied by said owner. Provided that said owner shall personally perform all labor in connection therewith, and provided said owners can demonstrate basic knowledge of the trade involved (electrical, plumbing, mechanical). Privilege may be revoked by the building official or designee when there is evidence that work is deficient in workmanship or code compliance. However, when the electrical work to be done is either to the meter base or to the service, all such work shall be performed by a properly licensed electrical contractor.

       When the excavation and attachment to the public sewer wye is required, all such work shall be performed by a properly licensed plumbing contractor. The location of the wye connection to the nearest manhole shall be provided by the plumbing contractor to the building official or other appropriate administrative authority.

       When the electrical work to be done is either the meter base or the service, all such work shall be performed by a properly licensed electrical contractor.

       No homeowner will be allowed to install any gas piping or connect to any gas meter.

Section R112 Board of Appeals. Delete this section in its entirety.

Section R202 - Definitions. A structure not greater than 1,200 square feet in floor area, and not over 25 feet in height, the use of which is customarily accessory to an incidental to that of the dwelling(s) and which is located on the same lot. Any building or structure used exclusively as an agricultural building in the. Urban Growth area in Franklin County as defined in Section 202 of the 2012 International Building Code and meets Appendix C for location. A plot plan and application for agricultural exemption shall be submitted in lieu of the permit. Agricultural buildings located within the City limits of Ottawa shall meet provisions of the 2012 International Building Code and other applicable codes as adopted and require permits.

Table R301.2 (1) - Climatic and Geographic Design Criteria

Ground

Snow

Load

Wind speed

(mph)

Seismic

Design

Category

Subject

Weather

Damage

Frost

Line

From

Termite

Winter

Design

Temp

Ice

Barrier

Flood

Hazard

Air

Freezing

Index

Mean

Annual

Temp

20

90

A

Severe

30

Moderate

To

Heavy

6 F

Yes

May 3,

2011

779

55.9 F

Section R302.2 Townhouses. Each townhouse shall be considered a separate building and shall be separated by fire-resistance-rated wall assemblies meeting the requirements of Section R302.1 for exterior walls.

Exception: A common 2-hour fire resistance-rated wall assembly tested in accordance with ASTM E 119 or UL 263 is permitted for townhouses if such walls do not contain plumbing or mechanical equipment, ducts or vents in the cavity of the common wall. The wall shall be rated for fire exposure from both sides and shall extend to and be tight against exterior walls and the underside of the roof sheathing. Electrical installations shall be installed in accordance with Chapters 34 through 43. Penetrations of electrical outlet boxes shall be in accordance with Section R302.4.

Section R302.2.4 Structural independence.  Each individual townhouse shall be structurally independent.

Exceptions:

1.    Foundations supporting exterior walls or common walls.

2.    Structural roof and wall sheathing from each unit may fasten to the common wall framing.

3.    Nonstructural wall and roof coverings.

4.    Flashing at termination of roof covering over common wall.

5.    Townhouses separated by a common 2-hour fire-resistance-rated wall as provided in Section R302.2.

Section R310.1 Emergency escape and rescue required. Basements, habitable attics and every sleeping room shall have at least one operable emergency escape and rescue opening. Where basements contain one or more sleeping rooms, emergency egress and rescue openings shall be required in each sleeping room. Where emergency escape and rescue openings are provided they shall have a sill height of not more than 44 inches (1118 mm) measured from the finished floor to the bottom of the clear opening. Where a door opening having a threshold below the adjacent ground elevation serves as an emergency escape and rescue opening and is provided with a bulkhead enclosure, the bulkhead enclosure shall comply with Section R310.3. The net clear opening dimensions required by this section shall be obtained by the normal operation of the emergency escape and rescue opening from the inside. Emergency escape and rescue openings with a finished sill height below the adjacent ground elevation shall be provided with a window well in accordance with Section R310.2. Emergency escape and rescue openings shall open directly into a public way, or to a yard or court that opens to a public way. One or more egress windows in sleeping rooms in basements shall satisfy general requirements for egress from habitable basement areas.

Section R311.2 Egress door. In new construction, a second egress door is required for all single-family dwellings.  The minimum openable width is 32” and the minimum clear height is 78”.  Egress doors shall operate without any special knowledge or tools.  Both egress doors must exit directly to the exterior.

Section R313.1 Townhouse automatic fire sprinkler systems. An automatic residential fire sprinkler system may be installed in townhouses.

Section R313.2 One- and two-family dwellings automatic fire systems. An automatic residential fire sprinkler systems may be installed in one- and two-family dwellings.

Section R315.3 Where required in existing dwellings. Where work requiring a permit occurs in existing dwellings that have attached garages or in existing dwellings within which fuel-fired appliances exist, carbon monoxide alarms shall be provided in accordance with Section R315.1.

Exceptions: Work involving the exterior surfaces of dwellings, such as the replacement of roofing or siding, or the addition or replacement of windows or doors, or the addition of a porch or deck, are exempt from the requirements of this section.  Installation, alteration or repairs of plumbing or mechanical systems are exempt from the requirements of this section.

Figure R403.1 Concrete and Masonry Foundation Details. Delete in its entirety and replace it with the following:

Foundations For Stud Bearing Walls Minimum Requirements

Not for Basement Walls

Number

of Stories

Minimum Thickness

of foundation

Minimum

Width of

Footing

Minimum

Thickness

of Footing

Minimum Depth of Foundation below Natural Surface of Ground or Finish

Grade

 

Concrete

Unit

Masonry

 

 

 

1

8”

8”

16”

8”

30”

2

8”

8”

16”

8”

30”

3

10”

10”

20”

10”

30”

Vertical

#4 @ 48” on center

#4 @ 48” on center

 

 

 

Horizontal

#4 @ 16”

on center

Dur-wall

16” on

center

(3) - #4’s

 

 

 

 

 

Section R907.3 Recovering versus replacement.   New roof coverings shall not be installed without first removing all existing layers of roof coverings down to the roof decking.

Exceptions:

1.    Complete and separate roofing systems, such as standing-seam metal roof systems, that are designed to transmit the roof loads directly to the building’s structural system and that do not rely on existing roofs and roof coverings for support, shall not require the removal of existing roof coverings.

2.    Installation of metal panel, metal shingle and concrete and clay tile roof coverings over existing wood shake roofs shall be permitted when the application is in accordance with Section R907.4.

3.    The application of new protective coating over existing spray polyurethane foam roofing systems shall be permitted without tear-off of existing roof coverings.

4.    Where the existing roof assembly includes an ice barrier membrane that is adhered to the roof deck, the existing ice barrier membrane shall be permitted to remain in place and covered with an additional layer of ice barrier membrane in accordance with Section R905.

Section N1101.15 (R401.2) Compliance. Projects shall comply with Sections identified as “mandatory” and with either sections identified as “prescriptive” or the performance approach in Section N1105.

Exception: Structures certified to meet or exceed the energy efficiency standards through a simulated energy performance analysis conducted by a state or nationally certified energy auditor (as example a HERS rating of 80 or lower) shall be exempted from the requirements of Chapter 11. The energy auditor shall present their state or national certification credentials for review and approval by the Building Official prior to issuance of the permit, and no Certificate of Occupancy shall be issued for the structure until documentation from the auditor certifying the rating of 80 or lower is submitted to and approved by the Building Official.

Table N1102.2.2 (R402.1) -- Change line number 4 (4 except Marine) to the following:

Table N1102.1.1 (R402.1)

Insulation and Fenestration Requirements by Component

Climate

Zone

Fenestration

U-Factor

Skylight

U-Factor

Glazed Fenestration

SHG

Ceiling

R-Value

Wood Frame Wall

R-Value

Mass Wall

R-Value

Floor

R-Value

Basement Wall

R-Value

Slab R-Value &

Depth

Crawl Space Wall

R-Value

4

except

Marine

0.35

0.55

0.40

49

13

8/13

19

10/13

10, 2 ft.

10/13

Section N1102.2.8 Basement Walls. Walls associated with conditioned basements shall be insulated from the top of the basement wall down to 1 O feet (3048 mm) below grade or to the basement floor, whichever is less. Walls associated with unconditioned basements shall meet this requirement unless the floor overhead is insulated in accordance with Section N1102.2.2 and N1102.2.7.

Exception: Basement walls that are otherwise exposed shall be insulated from the top of the basement wall down 3 feet (914mm) below grade or the basement floor, whichever is less.

Section N1102.4.1.2 Testing. Where required by the Code Official, the building or dwelling unit shall be tested and verified as having an air leakage rate not exceeding five (5) air changes per hour. Testing shall be conducted with a blower door at a pressure of 0.2 inches w.g. (50) Pascals). Where required by the Code Official, testing shall be conducted by an approved third party. A written report of the results of the test shall be signed by the party conducting the test and provided to the Code Official. Testing shall be performed at any time after creation of all penetrations of the building thermal envelope.

Section N1103.2.2 Sealing. Change the first sentence to read: When required by the Building Official ducts, air handlers, and filter boxes sealing shall be verified.

Section N1103.2.3 Building cavities (Mandatory). Building framing cavities shall not be used as ducts or plenums.

Exception: Unless such framing cavities are contained within the building thermal envelope.

Section N1103.4.2 (R403.4.2) Hot water pipe insulation (Prescriptive).  Insulation for hot water pipe with a minimum thermal resistance (A-value) of R-2 shall be applied to the following:

1.  Piping located under a floor slab.

2.  Buried piping.

3.   Supply and return piping in recirculation systems other than demand recirculation systems.

Section M1401.3 Sizing. Heating and cooling equipment and appliances shall be sized in accordance with ACCA Manual S based on building loads calculated in accordance with ACCA Manual J or other approved heating and cooling calculation methodologies. These calculations shall be provided prior to permit issuance.

Section M1601.1.2 Underground duct systems. Underground duct systems shall be constructed of approved concrete, clay, metal or plastic. The maximum duct temperature for plastic ducts shall not be greater than 150°F (66°C). Metal ducts shall be completely encased in concrete not less than 2 inches (51 mm) thick. Nonmetallic ducts shall be installed in accordance with the manufacturer’s installation instructions. Plastic pipe and fitting materials shall conform to cell classification 12454-B of ASTM D 1248 or ASTM D 1784 and external loading properties of ASTM D 2412. All ducts shall slope to an accessible point for drainage. Where encased in concrete, ducts shall be sealed and secured prior to any concrete being poured. Metallic ducts having an approved protective coating and nonmetallic ducts shall be installed in accordance with the manufacturer’s installation instructions.

Section G2417.4.1 Test pressure. The test pressure to be used shall be not less than one and one-half times the proposed maximum working pressure, but not less than 10 psig (20 kPa gauge), irrespective of design pressure. Where the test pressure exceeds 125 psig (862 kPa gauge), the test pressure shall not exceed a value that produces a hoop stress in the piping greater than 50 percent of the specified minimum yield strength of the pipe.

Section P2502.2 Additions, alterations or repairs. Additions, alterations, renovations or repairs to any plumbing systems shall conform to that required for a new plumbing system without requiring the existing plumbing system to comply with all the requirements of this code. Additions, alterations or repairs shall not cause an existing system to become unsafe, insanitary or overloaded.

       Minor additions, alterations, renovations and repairs to existing plumbing systems shall be permitted in the same manner and arrangement as in the existing system, provided that such repairs or replacement are not hazardous and are approved.

       When replacing the metallic water service line with plastic, proper grounding for the electric service must be achieved by two of the prescribed methods in Article 250 of the 2011 N.E.C.

Section P2503.4 Building sewer testing.

       The building sewer may be tested by insertion of a test plug at the point of connection with the public sewer and filling the building sewer with water, testing with not less than a ten (10) foot head of water and be able to maintain such pressure for fifteen (15) minutes or by air maintain five (5) PSI for fifteen (15) minutes.  This testing will be required when ordered by the Building Official.

Table P3002.2

Building Sewer Pipe

MATERIAL

STANDARD

Acrylonitrile butadiene styrene (ABS)  plastic pipe in IPS diameters, including schedule 40 DR 22 (PS 200) and DR 24 (PS 140); with a solid, cellular core or composite wall

ASTM D 2661; ASTM F 628; ASTM F 1488

Asbestos-cement  pipe

ASTM C 428

Cast-iron pipe

ASTM A 74; ASTM A 888; CISPI 301

Acrylonitrile butadiene styrene (ABS) plastic pipe in sewer and drain diameters, including SDR 42 (PS 20), PS35, SDR 35 (PS 45), PS50, PS100, PS140, SDR 23.5 (PS 150) and PS200; with a solid, cellular core or composite wall

ASTM F 1488; ASTM D 2751

Concrete pipe

ASTM C 14; ASTM C 76; CSA A257.1 M; CSA A257.2M

Copper or copper-alloy tubing (Type K or L)

ASTM B 75; ASTM B 88; ASTM B 251

Polvethylene (PE) Plastic pipe (SDR-PR)

ASTM F 714

Polyolefin Pipe

ASTM F 1412; CSA B181.3

Polyvinyl chloride (PVC) plastic pipe in IPS diameters, including schedule 40, DR 22 (PS 200) and DR 24 (PS 140); with solid, cellular core or composite wall

ASTM D 2665; ASTM D 2949; ASTM D 3034; ASTM F 1412; CSA B182.2; CSA B182.4

Polyvinyl chloride (PVC) plastic pipe with 4.00 inch I.D. and a solid, cellular core or composite wall

ASTM D 2949; ASTM F 1488

Stainless steel drainage systems, Types 304 and 316L

ASME A 112.3.1

Vitrified clay pipe

ASTM C 425; ASTM C 700

For SI: 1 inch = 25.4 mm.

Section P2503.5.1 Rough plumbing. Change the first sentence to read: Drain Waste & Vent systems shall be tested at the request of the building official of the rough piping installation by water or air.

Section P2603.5.1 Sewer Depth. Replace the word [Number] with 24.

Section P3005.4.2 Building drain and sewer size and slope.  Pipe sizes and slope shall be determined from Table P3005.4.2 on the basis of drainage load in fixture units (d.f.u.) computed from Table P3004.1. However no building sewer shall be less than four (4) inches in diameter.

Section P3114.2 Installation. The valves shall only be installed with prior approval in accordance with the requirements of this section and the manufacturer’s installation instructions. Air admittance valves shall be installed after the DWV testing required by Section P2503.5.1 or P2503.5.2 has been performed.

Section E3501.6.3 Service entrance conductors. The service entrance conductors, where exposed, shall be enclosed in one of the service raceways approved by the National Electrical Code.

Section E3902.2 Garage and accessory building receptacles. All 125-volt, single-phase, 15- or 20-ampere receptacles installed in garages and grade-level portions of unfinished accessory buildings used for storage or work areas shall have ground-fault circuit-interrupter protection for personnel.

Exception: A dedicated receptacle supplying a garage door opener, refrigerator, or freezer.

Section E3902.5 Unfinished basement receptacles. All 125-volt, single-phase, 15- and 20-ampere receptacles installed in unfinished basements shall have ground-fault circuit-interrupter protection for personnel. For purposes of this section, unfinished basements are defined as portions or areas of the basement not intended as habitable rooms and limited to storage areas, work areas, and the like.

Exceptions:

1.    A receptacle supplying only a permanently installed fire alarm or burglar alarm system.

2.    A dedicated receptacle supplying a sump pump, refrigerator, or freezer.

Section E3902.12 Arc-fault circuit-interrupters. All branch circuits that supply 120-volt, single-phase, 15- and 20-ampere outlets installed in family rooms, dining rooms, living rooms, parlors, libraries, dens, bedrooms, sunrooms, recreations rooms, closets, hallways and similar rooms or areas shall be protected by a combination type listed arc-fault circuit interrupter installed to provide protection of the branch circuit. For these purposes, a smoke alarm shall not be considered an outlet and is not required to be on an arc-fault circuit.

Exception:

1.    Where an outlet branch-circuit type AFCI is installed at the first outlet to provide protection for the remaining portion of the branch circuit, the portion of the branch circuit between the branch-circuit overcurrent device and the first outlet shall be installed with metal outlet and junction boxes and RMC, IMC, EMT, type MC, or steel armored type AC cables meeting the requirements of Section E3908.8.

2.    Where an outlet branch-circuit type AFCI is installed at the first outlet to provide protection for the remaining portion of the branch circuit, the portion of the branch circuit between the branch-circuit overcurrent device and the first outlet shall be installed with metal or nonmetallic conduit or tubing that is encased in not less than 2 inches (51 mm) of concrete.

3.    AFCI protection is not required for an individual branch circuit supplying only a fire alarm system where the branch circuit is wired with metal outlet and junction boxes and RMC, IMC, EMT or steel­ sheathed armored cable Type AC, or Type MC meeting the requirements of Section E3908.8

Section E4001.15 Switches controlling lighting loads. Where switches control lighting loads supplied by a grounded general purpose branch circuit, the grounded circuit conductor for the controlled lighting circuit shall be provided at the switch location.

Exception: The grounded circuit conductor is not required to be provided at each of the switch enclosures where the following condition applies:

1.    Lighting loads controlled from more than one location would only require the grounded circuit conductor to be present in one switch box of that switch controlled lighting load.

Appendix F Radon Control Methods. Delete this appendix in its entirety.

Appendix I Private Sewage Disposal. Delete this appendix in its entirety.

Section AI101 General.

AI101.1 Scope. Private sewage disposal systems shall to the City of Ottawa Private Sewage Disposal Code, Ordinance Number 3844-13.

Appendix L Permit Fees.  Delete this appendix in its entirety.

Appendix  M Home Day Care - R-3 Occupancy.  Delete this appendix in its entirety.

Appendix O Automatic Vehicular Gates. Delete this appendix in its entirety.

(Code 2015)