A. Building Code Adopted: In order to protect the health, safety and welfare of the public and to prescribe regulations governing building and other construction, the City Council hereby adopts the 2018 International Building Code (IBC), prepared by the International Code Council, Inc., as adopted by the State of Idaho through the Idaho Building Code Board, together with any amendments or revisions to the IBC made by the Idaho Building Code Board through the negotiated rulemaking process, is adopted with the following exceptions or amendments:
1. Section 103.2 is not adopted.
2. Section 103.3 is not adopted.
3. Section 107.1 is amended to read as follows:
107.1 General. Submittal documents consisting of construction documents, statement of special inspections, geotechnical report, structural observation programs and other data shall be submitted in one (1) paper set and one (1) PDF of the plan set in an approved electronic format for each application for a permit. The architectural construction documents shall be prepared by an architect licensed to practice by the state of Idaho. The building official shall have the option to stipulate that an Idaho licensed architect may submit construction documents that are proven to strictly adhere to the IBC provisions of section 2308; Conventional Light-Frame Construction. The building official shall have the option to stipulate that an Idaho licensed engineer in the appropriate engineering discipline (structural, mechanical, electrical, civil, geotectonic, acoustical, etc.) of his or her expertise may submit supplemental construction documents supportive and complementary to the architect's construction documents. Where special conditions exist, the building official may authorize a registered professional engineer acting within the discipline of his or her expertise and at the stipulation of the building official acting jointly or in association with a licensed architect to prepare construction documents and require site construction observation for buildings or shelters not intended, designed or constructed for human habitation or occupancy.
Exception: The building official is authorized to waive the submission of construction documents and other data not required to be prepared by a registered design professional of any architectural or engineering service in the erection, enlargement, alteration or repair of any building where such building to be or is used as a single family residence not exceeding three (3) stories in height and multiple height and multiple family residence of three adjoining dwelling units not exceeding three (3) stories in height or as a farm building or for the purpose of out buildings or auxiliary building in connection with such residence or farm premises or if it is found that the nature of the work applied for is such that reviewing of construction documents is not necessary to obtain compliance with this code.
Those individuals who furnish only interior design or decoration or space planning or space design services within existing structures which do not involve the construction or adherence to requirements of the international building code (IBC) including the Americans with disabilities act (ADA), American national standard accessible and usable building and facilities ICC/ANSI-A117 will not be required to be a registered design professional. This exemption only allows the use of moveable partitions, rails, counters, cabinets, space dividers, furniture and similar types of equipment which do not exceed a height of five feet, nine inches above floor in the execution of the plans or design of a particular space or the creation of exits corridors, stairways and disturbances of existing structural components as defined by the IBC.
4. Section 107.3.4.1 is amended to read as follows:
107.3.4.1 General. When it is required that documents be prepared by a registered architect, the building official shall be authorized to require that the owner engage and designate on the building permit application a registered architect who shall act as the registered design professional in responsible charge. If the circumstances require, the owner shall designate a substitute registered architect or professional engineer in responsible charge who shall perform the duties required by the building official. The building official shall be notified in writing by the owner or the architect of record if the person who is in responsible charge is changed or is unable to continue to perform the required duties.
5. Section 406.3.2.1 Separation. Replace section 1 with the following:
The private garage shall be separated from the dwelling unit and its attic area, including supporting members with materials approved for one-hour fire-resistive construction on the garage side and a self-closing, tight-fitting solid-wood door 13/8 inches in thickness, or a self-closing, tight-fitting 20-minute fire-rated door, or solid or honeycomb steel doors not less than 13/8 inches (34.9 mm) thick, or doors in compliance with section 716.5.1 and 716.5.3.1. Openings from a private garage directly into a room used for sleeping purposes shall not be permitted.
6. Section 1809.5 Frost Protection. Delete method 1 and replace with the following:
1. Extending below the frost line of the locality, with a minimum twenty-four (24) inches from ground surface to the bottom of a footing.
7. Add a new section 1905.1.9 Minimum Reinforcement as follows:
All continuous footings will require a minimum of two (2) continuous horizontal reinforcing bars. Footings supporting columns and piers shall contain no less than two (2) #4 rebar installed each way, not to exceed twelve (12) inches maximum spacing.
Minimum reinforcement for foundation walls (unless closer spacing is specified by design or engineering specifications) which do not exceed four (4) feet in height shall be four (4) feet on center for vertical reinforcement and two (2) feet on center for horizontal reinforcement. One (1) continuous row of horizontal #4 rebar shall be located between three (3) inches and six (6) inches of top and bottom of wall.
Foundation walls over four (4) feet in height (unless closer spacing is specified by design or engineering specification) shall be eighteen (18) inches minimum on center for horizontal and vertical reinforcement. Reinforcing bars shall be a minimum size of #4 and may be a minimum grade forty (40). One continuous row of horizontal #4 rebar shall be located between three (3) inches and six (6) inches of top and bottom of wall. No less than two (2) #4 rebar shall be installed around door, window, and similar sized openings.
B. Existing Building Code Adopted: The 2018 International Existing Building Code (IEBC), prepared by the International Code Council, Inc., is adopted and shall be the Existing Building Code of the Municipality with the following amendments or exemptions:
1. Section 103.2 is not adopted.
2. Section 103.3 is not adopted.
C. Residential Code Adopted: The 2018 International Residential Code (IRC), prepared by the International Code Council, Inc., as adopted by the State of Idaho through the Idaho Building Code Board, together with any amendments or revisions to the IRC made by the Idaho Building Code Board through the negotiated rulemaking process, is adopted with the following exceptions or amendments:
1. Section R101.2. Delete the exception and add the following sentence to the end of the section:
Detached one-and-two-family dwellings and townhouses will be classified as an R-3 occupancy. All garages, shops, and accessory structures will be classified as a U occupancy.
2. Section R103.2 is not adopted.
3. Section R103.3 is not adopted.
4. Section R104.10.1. Delete entire section.
5. Section R106.1 is amended to read as follows:
R106.1 General. Submittal documents consisting of construction documents, statement of special inspections, geotechnical report, structural observation programs and other data shall be submitted in one (1) paper set and one (1) PDF of the plan set in an approved electronic format for each application for a permit. The architectural construction documents shall be prepared by an architect licensed to practice by the state of Idaho. The building official shall have the option to stipulate that an Idaho licensed engineer in the appropriate engineering discipline (structural, mechanical, electrical, civil, geotectonic, acoustical, etc.) of his or her expertise may submit supplemental construction documents supportive and complementary to the architect's construction documents.
Where special conditions exist, the building official may authorize a registered professional engineer acting within the discipline of his or her expertise and at the stipulation of the building official acting jointly or in association with a licensed architect to prepare construction documents and require site construction observation for buildings or shelters not intended, designed or constructed for human habitation or occupancy.
Exception: The building official is authorized to waive the submission of construction documents and other data not required to be prepared by a registered design professional of any architectural or engineering service in the erection, enlargement, alteration or repair of any building where such building to be or is used as a single family residence not exceeding three (3) stories in height and multiple height and multiple family residence of three adjoining dwelling units not exceeding three (3) stories in height or as a farm building or for the purpose of out buildings or auxiliary building in connection with such residence or farm premises or if it is found that the nature of the work applied for is such that reviewing of construction documents is not necessary to obtain compliance with this code.
Those individuals who furnish only interior design or decoration or space planning or space design services within existing structures which do not involve the construction or adherence to requirements of the international residential code (IRC) including the Americans with disabilities act (ADA) American national standard accessible and usable building and facilities ICC/ANSI-A117 will not be required to be a registered design professional. This exemption only allows the use of moveable partitions, rails, counters, cabinets, space dividers, furniture and similar types of equipment which do not exceed a height of five feet, nine inches above floor in the execution of the plans or design of a particular space or the creation of exits corridors, stairways and disturbances of existing structural components as defined by the IRC.
6. Section R106.1.4 Delete entire section.
7. Section R109.1.3. Delete entire section.
8. Section R301.2.3 Snow Loads. Delete section and replace with the following:
Wood framed construction, cold-formed steel framed construction and masonry and concrete construction in regions with ground snow loads 70 psf (3.35 kN/m2) or less, shall be in accordance with chapters 5, 6 and 8 of the IBC. Buildings in regions with ground snow loads greater than 70 psf (3.35 kN/m2) shall be designed in accordance with accepted engineering practice. The minimum roof design snow load shall be forty (40) pounds per square foot. A ground snow load of sixty (60) pounds per square foot shall be used for roof drifting snow load design. No manufactured home, commercial coach or modular building shall be placed that has not been constructed to withstand a minimum forty (40) pound per square foot roof load, or the owner has provided for a separate roof cover that is constructed to provide the required roof load, except that manufactured homes that are already installed in a location within the city limits at the time of the passage of this section may remain without having to meet the minimum roof load set forth herein. Any manufactured home allowed to remain under this section may be moved to a different location within the city limits without having to meet the forty (40) pound roof load providing that it meets all zoning requirements contained in title 12 of the city code
9. Replace Table R302.6 with the following table:
TABLE R302.6
SEPARATION | MATERIAL |
From the residence and attics | Not less than 5/8-inch Type X gypsum board or equivalent applied to the garage side |
From habitable rooms above the garage and roof/ceiling assemblies | Not less than 2 layers of 5/8-inch Type X gypsum board or equivalent |
Structure(s) supporting floor/ceiling assemblies used for separation required by this section | Not less than 5/8-inch Type X gypsum board or equivalent |
Garages located less than 3 feet from a dwelling unit on the same lot | Not less than 5/8-inch Type X gypsum board or equivalent applied to the interior side of the exterior walls that are within this area |
10. Section R302.5.3. Delete section and replace with the following:
Penetrations through the separation required in section R302.6 shall be protected with approved materials to resist the passage of flame and products of combustion. The materials filling the penetration annular space shall meet the requirements of ASTM E 814 or UL 1479.
11. Section R302.7. Under Stair Protection. Delete section and replace with the following:
Enclosed accessible space under stairs shall have walls, under stair surface and any soffits protected on the enclosed side with 5/8-inch type X gypsum board.
12. Section R322 Flood-Resistant Construction is deleted.
13. Section R403.1.4.1 Frost Protection. Delete method 1 and replace with the following:
1. Extending below the frost line specified in table R301.2(1); with a minimum twenty-four (24) inches from ground surface to the bottom of a footing.
14. Delete tables R404.1.1(1), R404.1.1(2), and R404.1.1(3).
15. Section R404.1.2 Concrete Foundation Walls. Delete section and replace with the following:
All continuous footings will require a minimum two (2) continuous horizontal reinforcing bars.
Footings supporting columns and piers shall contain no less than two (2) #4 rebar installed each way, not to exceed twelve (12) inches maximum spacing.
Minimum reinforcement for foundation walls (unless closer spacing is specified by design or engineering specifications) which do not exceed four (4) feet in height shall be four (4) feet on center for vertical reinforcement and two (2) feet on center for horizontal reinforcement. One continuous row of horizontal #4 rebar shall be located between three (3) inches and six (6) inches of top and bottom of wall.
Foundation walls over four (4) feet in height (unless closer spacing is specified by design or engineering specification) shall be eighteen (18) inches minimum on center for horizontal and vertical reinforcement. Reinforcing bars shall be a minimum size of #4 and may be a minimum grade forty (40). One (1) continuous row of horizontal #4 rebar shall be located between three (3) inches and six (6) inches of top and bottom of wall. No less than two (2) #4 rebar shall be installed around door, window, and similar sized openings.
16. Part V Mechanical is adopted.
17. Part VI Fuel Gas is adopted.
18. Part VII. Plumbing and part VIII. Electrical are not adopted.
19. Appendices are not adopted except for:
Appendix J Existing Buildings and Structures excluding Sections AJ102.5, AJ301.1.2, AJ301.2, AJ301.3, AJ501.1 exception 2, and AJ501.5.
D. Energy Conservation Code Adopted: The 2018 edition of the International Energy Conservation Code (IECC), prepared by the International Code Council, Inc., together with any amendments or revisions to the IECC made by the Idaho Building Code Board through the negotiated rulemaking process, is adopted and shall be the Energy Conservation Code of the Municipality.
E. Fire Code Adopted: The International Fire Code, 2006 edition, as prepared and promulgated by the International Code Council and the Western Fire Chiefs Association, an as it shall be amended, revised, compiled and published from time to time and as such amendments or revisions shall be adopted by the Fire Marshal for the State of Idaho, is hereby adopted as the International Fire Code of the City.
F. Mechanical Code Adopted: The 2018 International Fuel Gas Code (IFGC), prepared by the International Code Council, Inc., is adopted and shall be the Fuel Gas Code of the Municipality with the following amendments or exemptions:
1. Section 103.2 is not adopted.
2. Section 103.3 is not adopted.
G. Fuel Gas Code Adopted: The 2018 International Mechanical Code (IMC), prepared by the International Code Council, Inc., is adopted and shall be the Mechanical Code of the Municipality with the following amendments or exemptions:
1. Section 103.2 is not adopted.
2. Section 103.3 is not adopted.
H. Sign Code Adopted: The Uniform Sign Code 1994, as published by the International Conference of Building Officials is hereby adopted by the City to provide standards to safeguard life, health and public welfare by regulating and controlling the design, quality or materials, construction, location, electrification and maintenance of all signs and sign structures not located within any building within the City.
I. Building Permits:
1. No person shall erect, construct, enlarge or alter, improve or convert any building or structure, including a garage attached thereto, or any building used for commercial or industrial purposes, or any public building which is within the City without first obtaining a separate building permit from the building official for that purpose. Each such building permit application shall:
a. Identify and describe the work to be covered by the permit for which application is made.
b. Describe the land on which the proposed work is to be done by legal description.
c. State the valuation of the proposed work or provide sufficient information upon which to assign a proper value. The value determination made by the building official shall be the basis on which the permit fees will be determined.
d. Be signed by the applicant or the applicant's authorized agent.
e. Give such other information as may be reasonably required by the City officials to determine compliance with applicable codes and ordinances.
2. No building permits shall be issued which would allow activities which violate the City's zoning or subdivision ordinances.
3. No building permit will be effective unless the permit fees have been paid and the permit has been signed by the building official.
J. Building Official: The Mayor is hereby authorized to designate a building official responsible for enforcement of the provisions of this chapter. The building official or any authorized deputy building inspector shall have the authority to ensure compliance with the provisions of this chapter and to issue building permits in accordance with the adopted codes.
K. Violations; Penalties: A violation of this chapter or the adopted codes shall be considered a misdemeanor, punishable in accordance with title 1, chapter 4 of the City Code. (Ord. 619, 12-29-2020)