§ 150.106. AMENDMENTS TO THE 2012 INTERNATIONAL RESIDENTIAL CODE.

Publisher's Note:This Section has been AMENDED by new legislation (Ord. , passed 11-18-2019). The text of the amendment will be incorporated below when the amending legislation is codified.

(A) Section R101.1 Title, insert (City of Columbus, NE).

(B) Section R105 Permits. Delete the Electrical, Gas, Mechanical and Plumbing provisions.

(C) Section R105.2(1) of the 2012 International Residential Code is hereby amended to read as follows:

R105.2(1). One story detached accessory structures provided the floor area does not exceed 120 square feet.

(D) Section R105.2(2) of the 2012 International Residential Code is hereby amended to read as follows:

R105.2(2). Fences more than three feet from any property line.

(E) Section R108.2 of the 2012 International Residential Code is hereby amended to read as follows:

R108.2 Schedule of Permit Fees. On buildings, structures, electrical, gas, mechanical and plumbing systems or alterations requiring a permit, a fee for each permit shall be paid as required, in accordance with the schedule as established by the applicable governing authority. In addition, a plan review fee equal to ten percent of the building permit shall be paid for a plan review.

(F) Section R113.4 of the 2012 International Residential Code is hereby amended to read as follows:

R113.4 Violation Penalties. Any person, firm or corporation violating any of the provisions of this Code shall be deemed guilty of a misdemeanor and the person shall be deemed guilty of a separate offense for each and everyday or portion thereof during which any violation of any of the provisions of this Code is committed, continued or permitted and upon conviction shall be punishable by a fine of not more than thirty days or by both fine and imprisonment.

Whenever the Building Official is satisfied that any provisions of this Code have been violated or are about to be violated or that any order or direction made pursuant to this Code has not been carried out or is being disregarded, he may apply to the City Council and request that it order civil proceedings to be instituted. Any civil proceedings, when instituted by the City Attorney at the direction of the City Council shall be brought in the name of the City of Columbus. Nothing in this Section and no action taken thereunder will exclude any other proceedings authorized by this Code or any other law or ordinance in force or to exempt any person violating this Code or any of the laws from any penalty which might be incurred.

(G) Table R301.2(1) of the 2012 International Residential Code is hereby amended to read as follows:

TABLE R301.2(1)
Roof Snow Live Load	30 lbs. per square foot
Wind Speed	90 mph
Seismic Design Category	B
Subject to Damage from Weathering	Severe
Subject to Damage from Frost Line Depth	36 inches
Subject to Damage from Termite	Moderate to Heavy
Subject to Damage from Decay	None to Slight
Winter Design Temperature	-3
Ice Barrier Underlayment Required	Yes
Flood Hazard	Adopted FEMA Firm Map
Air Freezing Index	1720
Mean Annual Temp	50

(H) Section R302.2 Exception of the 2012 International Residential Code is hereby amended to read as follows:

R302.2 Townhouses, Exception: A common 1-hour fire resistance-rated wall assembly tested in accordance with ASTM E 119 or UL263 is permitted for townhouses if such walls do not contain plumbing or mechanical equipment, ducts or vents in the cavity of the common wall and the structure is protected by an approved sprinkler system. 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 the NEC. Penetrations of electrical boxes shall be in accordance with Section R302.4.

(I) Section R302.2.4 No. 5 of the 2012 International Residential Code is hereby amended to read as follows:

R302.2.4 #5. Townhouses separated by a common 1-hour fire-resistance rated wall as provided in Section R302.2 and the structure is protected by an approved sprinkler system.

(J) Section R311.7.5.1 of the 2012 International Residential Code is hereby amended to read as follows:

R311.7.5.1 Risers. The maximum riser height shall be 8 inches (203 mm). The riser shall be measured vertically between leading edges of the adjacent treads. The greatest riser height within any flight of stairs shall not exceed the smallest by more than 3/8 inch (9.5 mm). Risers shall be vertical or sloped from the underside of the nosing of the tread above at an angle not more than 30 degrees (0.51 rad) from the vertical. Open risers are permitted provided that the opening between treads does not permit the passage of a 4-inch-diameter (102 mm) sphere.

Exception: The opening between adjacent treads is not limited on stairs with a total rise of 30 inches (762 mm) or less.

(K) Section R311.7.5.2 of the 2012 International Residential Code is hereby amended to read as follows:

R311.7.5.2 Treads. The minimum tread depth shall be 9 inches (229 mm). The tread depth shall be measured horizontally between the vertical planes of the foremost projection of adjacent treads and at a right angle to the tread's leading edge. The greatest tread depth within any flight of stairs shall not exceed the smallest by more than 3/8 inch (9.5 mm).

(L) Section R313 Automatic Fire Sprinkler Systems of the 2012 International Residential Code is hereby deleted entirely.

(M) Section R322 of the 2012 International Residential Code is hereby amended to read as follows:

R322 Flood-Resistant Construction where approved by Federal, State, and City Flood Plain regulations.

(N) Section R403.1.4.1 of the 2012 International Residential Code is hereby amended to read as follows:

R403.1.4.1 Frost Protection. Except where otherwise protected from frost, foundation walls, piers and other permanent supports of buildings and structures shall be protected from frost by one or more of the following methods.

1. Extending below the frost line specified in Table R301.2(1).

2. Constructing in accordance with Section R403.3.

3. Constructing in accordance with ASCE 32.

4. Erected on solid rock.

Exceptions:

1. One-story wood or metal frame unheated and detached buildings not used for human occupancy and not over four hundred forty (440) square feet in floor area (where no dimension exceeds twenty-two feet (22') and the width between bearing walls does not exceed twenty feet (20'), may be constructed with walls supported on a monolithic footing and slab. The footing shall be a minimum of twelve inches (12") below grade and eight inches (8") wide. Detached wood frame garages over 440 square feet must have a minimum 8" wide x 36" deep foundation.

2. Decks not supported by a dwelling need not be provided with footings that extend below the frost line.

(O) All provisions contained in Section R405 of the 2012 International Residential Code are hereby deleted and shall be replaced with the following subsurface drainage provisions and the 2012 International Residential Code is amended accordingly, to-wit:

R405: Subsurface Drainage.

Section 1.

Drainage System. All residential dwellings located within the City limits of the City of Columbus or within the extraterritorial jurisdiction of the City, shall have installed, unless a waiver is obtained as provided herein, a system to remove subsurface water from below grade habitable space. The systems for removing the water may be a coarse gravel base, subsoil drain, both of which are described herein, or any other system or combinations thereof when approved by the Building Official of the City of Columbus.

Section 2.

Definitions. Coarse gravel base, for the purposes of this Section shall mean, a minimum of 12" coarse gravel under the concrete floor of any below grade habitable spaces, with one 24" x 24" diameter deep well, the well being screened and having a concrete base, to act as a sump, for each 750 square feet of floor area of below grade habitable space.

Subsoil drain, for purposes of this Section shall mean subsoil drain tiles and a sump pit installed around the perimeter of foundations enclosing habitable spaces located below grade. In addition to the perimeter drains, the drains shall be installed so that all areas of the floor of below grade habitable space are within 10' of a drain tile. Drain tiles shall be installed at or below the area to be protected. The drain tile shall be surrounded by a minimum of 6" coarse gravel on all sides. The drain tile shall have a minimum diameter of 4" and shall be constructed of vitrified clay tile or PVC pipe. The sump into which the drain tile discharges shall be constructed of concrete or masonry block and shall have a minimum dimension of 24" x 24". The sump may also be constructed of polyethylene provided it conforms to Commercial Standard CS228-61, Building Official Code Administrator 73-78, Farmer's Home Administration Material Release 699 and American Society of Testing Material Standard Depth 405-76 as they in effect at the date of the adoption of this Section.

With either of the above-described systems, the sump shall discharge by gravity or mechanical means to a storm sewer, street or natural drainage way approved by the Building Official, but specifically shall not discharge into a sanitary sewer system.

Habitable space is defined, for purposes of this Section, as any space having a ceiling height of not less than 6' feet which is partially or completely below the ground level elevation.

All other terms and phrases used herein shall be defined by the International Residential Code as adopted by the City of Columbus, Nebraska.

Section 3.

Administration. The Building Official shall approve all drainage systems prior to and during their installation.

The requirements to install a drainage system for the removal of subsurface water may be waived under the following conditions:

a. The Building Official may waive this Section if the floor of the below grade habitable space is above the highest recorded water level at the particular location of the building so constructed as demonstrated and proven by the owners of the property upon which the building is to be constructed.

Highest ground water elevation shall be determined by open soil boring on the property upon which the residence is to be constructed.

b. Owners of the subdivisions and additions platted prior to the adoption of this Section may apply for a waiver on the entire subdivision, the waiver being granted by the Building Official. The Building Official shall grant a waiver if the owner of the subdivision shows to the Building Official that the floors of below grade habitable space will not be constructed lower than the highest recorded ground water elevation.

The highest ground water elevation shall be determined by soil borings taken at various locations within the subdivision or addition. The soil borings shall be located not more than 300 feet apart or one per each acre or portion thereof in the addition or subdivision, whichever would require the least number of soil borings.

c. Subdivisions or additions approved subsequent to the passage of this Section which require that all below grade habitable spaces constructed in the subdivision or addition be constructed in a manner that the floor of the below grade habitable space is above the height of the highest measured ground water elevation.

The highest ground water elevation shall be determined by soil borings of various locations within the subdivision or addition. The soil borings shall be located not more than 300 feet apart or one per each acre or portion thereof, in the addition or subdivision, whichever would require the least number of soil borings.

Section 4.

Default. Failure to comply with the terms of this Section, by the owner of any building covered by this Section or by the owner of any real property included within the terms of this Section may result in the denial of the building permit application and a fine of $100 per day that the building does not conform to the above requirements.

(P) All provisions contained in Chapter 11 of the 2012 International Residential Code are hereby deleted and shall be replaced with the following manufactured home dwelling provisions and the 2012 International Residential Code is amended accordingly, to-wit:

Chapter 11: Manufactured Home Dwellings.

Section 1.

Definitions. For purposes of this Section, "manufactured home dwellings" shall mean a factory built structure which is to be used as a place for human habitation, which is not constructed or equipped with a permanent hitch or other device allowing it to be moved other than to a permanent site; which does not have permanently attached to its body or frame, any wheels or axles and which bears a label certifying it was built in compliance with the National Manufactured Home Construction and Safety Standards promulgated by the U.S. Department of Housing and Urban Development.

Section 2.

Construction Standards. A manufactured home complying with the following architectural or ascetic standards may be placed in all residential zones provided:

a. The home shall not have less than 900 square feet of floor area;

b. The home shall not have less than an 18 foot exterior width;

c. The roof shall be pitched with a minimum vertical rise of 2.5" for each 12" of horizontal run;

d. The exterior material shall be of a color, material and scale comparable with those existing in the residential site in which the manufactured home dwelling is being permanently installed;

e. The home shall have a nonreflective roof material which is or simulates asphalt or wood shingles, tile or rock;

f. Permanent utility connections shall be installed in accordance with local regulations;

g. The home shall bear an appropriate seal which indicates it was constructed in accordance with the standards of the U.S. Department of Housing and Urban Development;

h. The home shall have all wheels, axles, transporting lights and the removal towing apparatus removed; and

i. The home shall be constructed upon a permanent foundation that is constructed and build in accordance with local regulations.

(Q) Chapters 12, 13 and 14 of the 2012 International Residential Code are hereby deleted.

(R) Chapters 16-43 of the 2012 International Residential Code are hereby deleted.

(Ord. 03-47, passed 12-15-03; Am. Ord. 11-11, passed 3-21-11; Am. Ord. 15-27, passed 1-18-16)