A. The 2018 Edition of the International Residential Code is hereby adopted by reference as the one- and two-family dwelling code of the village, except for such additions, insertions, deletions or changes as hereinafter prescribed in subsection B of this section.
B. The following are amendments to the International Residential Code, 2018 Edition:
R101.1 Title. Insert the Village of River Forest.
103.1 Creation of enforcement agency. Delete the entire section and replace with the following: The Department of Public Works and Development Services shall be the enforcement agency of this code and the official in charge shall be known as the Building Official.
R105.2 Work Exempt From Permit. Delete the entire list following the subsection entitled "Building" and replace with the following list:
1. Prefabricated sheds not with a floor area less than 100 square feet.
2. Painting, papering, tiling, carpeting, cabinets, countertops and similar finish work.
3. Prefabricated swimming pools that are less than 24 inches deep.
4. Swings and other playground equipment accessory to the residence.
Add the following paragraph to the subsection entitled "Electrical."
Replacement Of Electrical Equipment: Electrical equipment may be replaced in-kind or repaired without a permit provided that no modifications to the system is required and that such work is performed by a qualified person as defined by the National Electrical Code.
Delete the entire list following the subsection entitled "Mechanical" and replace with the following list:
1. Portable heating, ventilating or cooling appliances.
2. Replacement of mechanical equipment in-kind shall not require a permit, provided such equipment is connected to the same electric or fuel source that the old equipment was connected to, the replacement equipment is the same capacity or rating as the old equipment and further provided that such work is performed by qualified personnel.
R105.2.3 Public Service Agencies. Delete the entire paragraph after the section heading and replace with: A permit shall not be required for the ordinary repairs of above grade facilities and for the ordinary repairs of below grade facilities that are located entirely on private property. Any repair requiring an excavation within the public right of way shall require a permit and shall be performed in accordance with the village's standards for construction of facilities on public rights of way contained in Title 5 of the Village Code. Any installation of new facilities regardless of location shall require a permit.
R105.3 Application For Permit. Add the following to the list of application requirements:
8. All plans for projects shall be prepared, signed and sealed by a licensed architect in the state of Illinois except for miscellaneous permits, detached garages, sheds, other minor accessory structures and interior remodeling projects not involving structural modifications.
9. All applications shall list the name, address, email and phone number of all contractors involved in the project.
R105.3.1.1 Determination of Substantially Improved or Substantially Damaged Existing Buildings in Flood Hazard Areas. Delete this section in its entirety.
R105.5 Expiration. Delete the entire paragraph after the section heading and replace with: Permit expirations shall be in accordance with Section 4-2-3
of this Title.
R106.2 Site Plan or Plat Plan. Rename this section to "Site, Grading and Drainage Plan" and replace the existing paragraph with the following: The construction documents submitted with the application for permit shall be accompanied by a site plan showing the size and location of all structures and paved surfaces (paved surfaces includes driveways, sidewalks, patios, etc.) on the subject lot as well as on adjacent lots. The setbacks to all lot lines shall be included on the plan. Included on the site plan or on a separate plan shall be a grading plan which shows the proposed top-of-foundation elevation for all structures, exterior grade elevation at all structures on the subject property as well as adjacent properties. The elevation of the public walks adjacent to the property shall be shown. When construction within the public right-of-way is required, the plan shall also show the specific location of parkway trees, light poles, fire hydrants, sign poles, etc. The grading plan should also show sufficient existing and proposed spot elevations to show direction of all surface water flow. The Village Engineer may accept the use of a local datum elevation if a convenient benchmark is not available. The Village Engineer shall require that the grading plan be prepared by a registered professional engineer.
For new one or two family structures, a survey of the foundation must be submitted to the village evidencing adherence with all applicable zoning requirements prior to proceeding with above grade framing.
R112 Board of Appeals. Delete the entire section and replace with the following:
A. The applicant shall file a written appeal addressed to the Village's Building Official, identifying the particular condition or portion of the work, and the applicable provision(s) of the code which have been interpreted.
B. The Village's Building Official shall enforce the code in accordance with the Building Official's interpretation with regard to the applicant's building code appeal.
C. The appellant has the right to appeal to the Village Administrator first and then to Village Board.
R201.3 Terms Defined in Other Codes. Add the following paragraph: The following terms as defined in Section 10-3-1
of the Village Zoning Code and shall supersede the definitions in this chapter: Accessory Structure(Building), Basement, Building, Dwelling, Grade, Height (Of) Building, Lot, Story, Structure, Yard.
Table R301.2(1). Insert the following data:
TABLE R301.2(1)
CLIMATIC AND GEOGRAPHIC DESIGN CRITERIA
Ground Snow Load | Wind Speed (mph) | Seismic Design Category | Subject To Damage From | Winter Design Temp | Ice Shield Under- layment Required | Flood Hazard | Air Freezing Index | Mean Annual Temp | |||||
Speed (mph) | Topo effects | Special wind region | Wind borne debris | Weather-ing | Frost Line Depth | Termite | |||||||
30 p.s.f. | 115 mph | No | No | No | B | Severe | 48" | Moder ate to heavy | -2°F | Yes | * | 1700 | 49°F |
R302.1 Exterior Walls. Add the following: The fire separation distance from a detached garage and the dwelling it is accessory to, shall not be less than 15 feet unless the garage is equipped with an approved supervised heat detection system, in which case, the minimum fire separation distance may be reduced to 10 feet.
Delete in its entirety the third exception in this section pertaining to tool, storage sheds, playhouses and similar structures.
R302.6 Dwelling-Garage Fire Separation. Delete the entire paragraph after the section heading and replace with: An attached garage shall be separated from the residence and its attic area by not less than 5/8-inch type X gypsum board or equivalent applied to the garage side. Where the separation is a floor-ceiling assembly, the walls supporting this assembly must be similarly protected.
R302.7 Under Stair Protection. Replace "1/2" gypsum board" with "5/8" type X gypsum board".
R309.1 Floor Surface. Add the following: Attached garages shall be continuously separated from the remainder of the building with a concrete curb, minimum 4" high, and shall be poured integral with the floor slab.
R309.3 Flood Hazard Areas. Delete this section and following subsections in their entirety.
R313 Automatic Fire Sprinkler Systems. Delete the paragraphs after the section heading and replace with the following: Approved automatic fire protection sprinkler systems shall be provided to comply with this section.
R313.3.1 Where Required: Approved automatic fire protection sprinkler systems shall be provided in the following:
1. New construction.
2. Existing residences where more than 90% of the area of the floor structures of the current structure above the foundation level is demolished and rebuild. Automatic fire protection sprinkler systems shall not be required for additions or alterations to existing single family residences which do not included the demolition and rebuilding of more than 90% of the area of the floor structures of the current structure above the foundation level.
R313.3.2 System Requirements. Add the following section: The system shall be installed meeting the requirements of NFPA 13D, 2016 Edition and NFPA 101, 2018 Edition, Sections 9.7, 24.3.5.1 and 24.3.5.2. as modified herein.
R313.3.3 Acceptance Requirements: Add the following section:
All systems shall be inspected, tested, and approved by the fire department in accordance with the requirements of NFPA 13D and NFPA 72, including but not limited to initiating device, notification appliance, and remote station fire alarm connection prior to scheduling final inspection for certificate of occupancy.
Amendments to NFPA 13 D (2016 Edition) are as follows:
7.6 Alarms. Delete the entire paragraph after the section heading and replace with: Water flow alarms shall be required on all approved automatic fire protection sprinkler systems. An interior, six (6) inch water flow bell shall be mounted to the return duct of each furnace in the structure. In lieu of the water flow bells an audible alarm horn shall be installed adjacent to each sleeping area, with a minimum decibel rating of 70 db at pillow level in occupiable areas.
A weatherproof horn/strobe audible alarm, for the approved automatic fire protection sprinkler system, shall be mounted on the outside of the structure at a location causing it to be heard and seen from the public
8.3.4 Location of Sprinklers. Delete the entire paragraph after the section heading and replace with: Sprinklers shall be installed in attached garages, carport or any other type of attached structure used to house vehicles to protect common walls, ceilings and openings.
9.2 Antifreeze Systems. Delete the entire section heading and replace with: Automatic fire protection sprinkler systems are prohibited from using antifreeze solutions in any portion of said system.
R314 Smoke Alarms. Rename this section: Smoke Alarms, Carbon Monoxide Detectors and Sprinkler Systems. Delete the existing language after the section heading in its entirety and replace with:
R314.1 Smoke Alarms. Smoke alarms shall be installed in the following:
1. In each sleeping room.
2. Outside each separate sleeping area in the immediate vicinity of the bedrooms.
3. One each additional story of the dwelling, including basements but not including crawl spaces and uninhabitable attics. In dwellings or dwelling units with split levels and without an intervening door between the adjacent levels, a smoke alarm installed on the upper level shall suffice for the adjacent lower level provided that the lower level is less than one full story below the upper level.
When more than one smoke alarm is required to be installed within an individual dwelling unit the alarm devices shall be interconnected in such a manner that the actuation of one alarm will activate all of the alarms in the individual unit. The alarm shall be clearly audible in all bedrooms over background noise levels with all intervening doors closed.
All smoke alarms shall be listed and installed in accordance with the provisions of this code and the household fire warning equipment provisions of NFPA 72.
R314.1.1 Alterations, Repairs And Additions. When interior alterations, repairs or additions requiring a permit occur, or when one or more sleeping rooms are added or created in existing dwellings, the individual dwelling unit shall be provided with smoke alarms located as required for new dwellings; the smoke alarms shall be interconnected.
Exceptions:
1. Smoke alarms in existing areas shall not be required to be interconnected and hard wired where the alterations or repairs do not result in the removal of interior wall or ceiling finishes exposing the structure, unless there is an attic, crawl space, or basement available which could provide access for hard wiring and interconnection without the removal of interior finishes.
2. Repairs to the exterior surfaces of dwellings are exempt from the requirements of this section.
R315 Carbon Monoxide Detectors. Carbon monoxide detectors shall be installed in the following locations:
1. Within 15 feet of each sleeping area.
2. On every floor on which a fossil fuel burning boiler, water heater, furnace or appliance is located.
R314.6 Power Source. Delete the entire paragraph after the section heading and replace with: In new construction, the required smoke alarms and carbon monoxide detectors shall receive their primary power from the building wiring when such wiring is served from a commercial source, and when primary power is interrupted, shall receive power from a battery. Wiring shall be permanent and without a disconnecting switch other than those required for overcurrent protection. Smoke alarms and carbon monoxide detectors shall be permitted to be battery operated when installed in buildings without commercial power or in buildings that undergo alterations, repairs of additions regulated by Section R313.1.1.
R319.1 Address Identification. Add the following: Where a garage abuts a public alley, approved house numbers shall be affixed to the face of the garage, minimum 4" high, in a plainly visible location.
R401.1 Application. Delete the last sentence of this section and replace with: Wood foundations are not allowed and all subsequent references to wood foundations in this chapter are hereby deleted.
R403.1.4.1 Frost Protection. Delete the reference to Section R403.3 as an acceptable method of frost protection and delete the exceptions section in its entirety and replace with the following: Exception: Single story accessory structures with an area 500 square feet or less with non-masonry or other non-rigid wall construction shall not be required to be protected.
R403.1.7.3 Foundation Elevation. Delete the entire paragraph after the section heading and replace with: The top of any exterior foundation wall shall extend a minimum of 8 inches above exterior finished grade adjacent to the foundation at all points. Elevations shall be established to promote positive drainage without adversely impacting adjoining properties. Where the foundation elevations of adjoining lots vary greatly, the new foundation elevation on the subject lot shall be established as approximately the average of the elevations of the foundation of said adjoining lots. The Village Engineer shall require the submission of a grading plan stamped by a professional engineer prior to the issuance of a permit as well as a submission of an as-built grading certificate prior to the issuance of a certificate of occupancy demonstrating the project has been constructed in accordance with the approved grading plan. The Village Engineer may consider unique grading conditions and has the authority to approve a foundation elevation based on sound engineering judgment.
R403.3 Frost Protected Shallow Foundations. Delete this section and following subsections in their entirety.
R502.1.2 Prefabricated Wood I-Joists. Add the following: Wood I-joists may not remain exposed and shall be protected with a minimum 5/8 inch type "X" gypsum board or equivalent.
R504 Pressure Preservative-Treated Wood Floors (On Ground). Delete this section and following subsections in their entirety.
R610 Structural Insulated Panel Wall Construction. Delete this section and following subsections in their entirety.
R702.3.4 Insulating Concrete Form Walls. Delete this section in its entirety.
Table R702.3.5 Minimum Thickness And Application Of Gypsum Board and Gypsum Panel Products. Minimum gypsum board thickness to be 5/8 inch.
References to thickness and application of gypsum board less than 5/8 inches thick are hereby deleted.
ICC Delete all references to the International Plumbing Code and insert the Illinois Plumbing Code 2014 edition
Adopt the following appendices A, B, C, D, F, H, I, J, M, O.
(Ord. 3150, 3-13-2006; amd. Ord. 3873, 9-12-2022)