§ 10-57. Amendments.

The code adopted by this article is amended as provided in this section (the section identifiers contained within these amendments conform to the 2018 International Residential Code):

Section R101.1 Title.

Delete "[NAME OF JURISDICTION]" and insert "Knox County, Tennessee" in its place.

Section R102.5 Appendices.

At the end of this section, insert the following:

"The following Appendices are specifically included in the adoption. All others are excluded.

Appendix A. Sizing and Capacities of Gas Piping

Appendix B. Sizing of Venting Systems Serving Appliances Equipped with Draft Hoods, Category I Appliances and Appliances Listed For Use with Type B Vents

Appendix C. Exit Terminals of Mechanical Draft and Direct-Vent Venting Systems

Appendix D. Recommended Procedure for Safety Inspection of an Existing Appliance Installation

Appendix E. Manufactured Housing Used as Dwellings

Appendix F. Radon Control Methods

Appendix G. Piping Standards for Various Applications

Appendix H. Patio Covers

Appendix J. Existing Buildings and Structures

Appendix K. Sound Transmission

Appendix M. Home Day Care - R-3 Occupancy

Appendix N. Venting Methods

Appendix O. Automatic Vehicular Gates

Appendix P. Sizing of Water Piping Systems

Appendix Q. Tiny Houses

Insert a new section as follows:

" R105.1.1 Documentation prerequisite to issuance of a demolition permit.

Before a permit for the demolition of any building may be issued the following documentation must be submitted:

1.

Minimum three inch by five inch black and white photographs of all sides and any interesting details or features inside or outside of the structure and negatives of such photographs. Digital photographs shall be an acceptable alternate.

2.

Any and all historical documents regarding the building that may be located by the applicant.

3.

The completed historical and architectural information sheet describing the structure, including unusual features such as doors, windows, mantles, stairways, decorative plaster, ceiling, etc."

Section R105.2 Work exempt from permit.

Delete Item 1 in its entirety.

Delete "2. Fences not over 7 feet (1829 mm) high." and insert "2. Fences." in its place.

Section R106.1 Submittal documents.

At the end of the first paragraph before the exception, insert "All construction documents, including the site plan, for all buildings over 5000 square feet in area and for all buildings with three or more attached dwellings shall be prepared and sealed by a registered design professional licensed by the State of Tennessee."

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

Insert "10 PSF" in the table for Ground Snow Load.

Insert "90" in the table for Wind Speed.

Insert "No" in the table for topographic effects.

Insert "C" in the table for Seismic Design Category.

Insert "Severe" in the table for Weathering.

Insert "12 inches" in the table for Frost Line Depth.

Insert "Moderate to heavy" in the table for Termite.

Insert "19 degrees Fahrenheit" in the table for Winter Design Temperature.

Insert "No" in the table for Ice Barrier Underlayment Required.

Insert "210" in the table for Air Freezing Index.

Insert "59.4" in the table for Mean Annual Temperature.

Delete footnote g. in its entirety and in its place insert "g. Flood hazard areas shall be as determined by the Knox County Department of Engineering and Public Works."

Section R301.2.2 Seismic provisions.

Delete item 1, renumber item 2 to item 1 and insert "and townhouses" just after the word dwellings and at the end of the section insert "All references to "townhouses in seismic design category C" in Chapters 6, 7, and 28 shall not apply in Knox County."

Section R302.5.1 Opening protection.

After the words "fire-rated doors" replace the "," with a "." and delete the remainder of the sentence.

Section R303.4 Mechanical ventilation.

Add the word "(Optional)." in the section title after the word ventilation.

Delete the words "the dwelling unit shall be provided with whole-house mechanical ventilation" and replace with the words "dwelling units provided with whole-house mechanical ventilation shall be".

Section R313 Automatic Fire Sprinkler Systems.

Add the words "(Optional, see Tennessee Code Annotated, Section 68-120-101(a)(8))." in the section title after the word "Systems".

Section R313.1 Townhouse automatic fire sprinkler systems.

Delete the words "An automatic residential fire sprinkler system shall be installed in townhouses." and replace with "When an automatic residential fire sprinkler system is installed in townhouses, the following shall apply:"

Section R313.2 One- and two-family dwellings automatic fire sprinkler systems.

Delete the words "An automatic residential fire sprinkler system shall be installed in one- and two-family dwellings." and replace with "When an automatic residential fire sprinkler system is installed in one- and two-family dwellings, the following shall apply:"

Section R314.3 Location.

Insert "5. In each garage. These smoke alarms shall be specifically approved for use in the garages in the manufacturers written instructions. Exception: Heat detectors interconnected with the alarm system and having battery back up may be used in a garage.

Section R322.1.7 Protection of water supply and sanitary sewage.

Delete "and Chapter 3 of the International Private Sewage Disposal Code " and insert ", the requirements of the water and sewer service utility providers and the Knox County Health Department" in its place.

Section R502.11.4 Truss Design Drawings.

Delete "to the building official and approved prior to installation" and replace it with "for review when required by the building official ".

Section R802.10.1 Truss design drawings.

Delete "to the building official and approved prior to installation" and replace it with "for review when required by the building official ".

Table N1102.1.2 (R402.1.2) Insulation and fenestration requirements by component.

In row Climate Zone 4 except marine under Ceiling R-Value delete "49" and replace with "38". In the same row under Wood Frame Wall R-Value delete "20 or 13+5" and replace with "13".

Section N1102.2.6 (R402.2.6) Steel-frame ceilings, walls, and floors.

After the first occurrence of the word "of" insert "Table N1102.1.2 or".

Section N1102.4.1.1 (R402.4.1.1) Installation.

Add the words "and visual inspection option." after the word "Installation" in the section title.

Add the words ", and be field verified." after the word "construction".

Section N1102.4.1.2 (R402.4.1.2) Testing.

Add the word "(optional)" after the word "Testing" in the section title.

Before the first sentence insert "Where required by the building official ,"

Section N1103.1.1 (R403.1.1) Programmable thermostat.

Add the word "(optional)." after the word "thermostat" in the section title.

Before the first sentence insert "Where required by the building official ,"

Section N1103.2.2 (R403.2.2) Sealing (Mandatory).

Before the word "Duct" insert "Where required by the building official ,"

Section N1103.6 (R403.6) Mechanical ventilation (Mandatory).

Delete the word "Mandatory", and replace with the word "Optional" in the section title.

Delete "The building shall be provided with ventilation that meets" and replace with "Buildings provided with ventilation shall meet".

Section N1103.10 (R403.10) Pools and permanent spa energy consumption (Mandatory).

Delete the word "Mandatory" and replace with the word "Optional" in the section title.

Before the first sentence insert "Where required by the building official ,"

Section P2603.5.1 Sewer depth.

Delete "[NUMBER]" in two places and insert "twelve inches" in two places.

Section E3403.2 Inspection Required.

Insert the words "where required" after the words "shall be inspected".

Section AE304.3.2.1 Investigation.

Before the first sentence insert "Where required by the building official ,"

Section AE304.3.2.2 Fee.

Before the first sentence insert "Where required by the building official ,"

Section AE305.5.1 Structural inspections for the manufactured home installation.

At the end of the section insert "Exception: The inspections required by this section shall not apply to manufactured homes as exempted by the State of Tennessee but shall apply to any construction or installation of decks, porches, steps, or other structures or equipment. All manufactured homes shall pass a final inspection and have a certificate of occupancy issued."

Section AF103.5.3 Vent pipe.

At the end of the section insert "Exception: The vent pipe shall be allowed to terminate in the attic and capped unless tests verify the radon potential to be 4 pCi/L or greater.

Section AF103.12 Power source.

Delete Section AF103.12 in its entirety.

( Ord. No. O-18-10-101, § 3(Exh. II), 11-19-18 )