510-RICR-00-00-3. RISBC-3 Rhode Island Plumbing Code (version Periodic Refile, 12/19/2001 to 07/23/2002)

RHODE ISLAND STATE BUILDING CODE Plumbing Code Regulation SBC-3 APRIL 1, 1998 Re-enactment of SBC-3 Dated May 1, 1997 Replaces Regulation SBC-3-92 Dated January 1, 1992 STATE OF RHODE ISLAND AND PROVIDENCE PLANTATIONS Department of Administration BUILDING CODE STANDARDS COMMITTEE One Capitol Hill Providence, Rhode Island 02908-5859 (401) 222-3033 Fax No. (401) 222-2599 7th EDITION STATEMENT OF NEED Pursuant to the State Building Code Chapter 23, Title 27.3, the Building Code Standards Committee has promulgated Regulation SBC-3, as amended, dated April 1, 1998. In accordance with section 23-27.3-l09.1 paragraphs 1-4 of the Code, the Committee has the authority to adopt appropriate rules and regulations when necessary to maintain the State Building Code current with national model codes and standards. STATE OF RHODE ISLAND BUILDING CODE STANDARDS COMMITTEE CHAIRMAN VICE CHAIRMAN J. Robert Wahlberg Gordon Preiss, P.E. Builder Heavy Construction Reg. Prof. Engineer (Mechanical) EXECUTIVE COMMITTEE Russell Brown Building Official Daniel Paquette Builder Donald Gagnon Minimum Housing Inspector Members Frank Canario Mark Lowenstein Public Health Official Representative of the Disabled James Carlson Frank Montanaro Public Member State Representative John Cronin Dana Newbrook Plumber Architect Steve Durkee Ronald Travers Architect Building Official Thomas Lynch Joseph Walsh Builders Trades Council Electrical Inspector John Gaskell William Lepore Electrical Engineer Electrical Contractor Randall Collins Donald Jacques Landscape Architect Representative of the Disabled William Howe Thomas Coffey Fire Official Legal Counsel Richard Hanson Joseph A. Cirillo Public Member State Building Commissioner Executive Secretary PLUMBING CODE REGULATION SBC-3 April 1, 1998 The Building Code Standards Committee in accordance with the rule making authority of Title 23, Chapter 27.3, Section 109.1, Paragraph 1 through 4 inclusive have formally adopted and promulgated the provisions of the International Plumbing Code, 1995 edition, as published by the International Code Council (ICC) as the State Code for the design and installation of all plumbing systems, with the amendments thereto hereinafter set forth to the Articles and Sections of said code. Existing State Code amendments shall remain in effect unless modified and shall be renumbered by the Commissioner for coordination purposes only. CHAPTER 1 ADMINISTRATION ADMINISTRATION AND ENFORCEMENT The following Rhode Island amendments are added to the Sections of Article 1: Delete sections P-100.1 to P-109.7, except retain the provisions of Sections P-102.2, P-102.3, P-102.4, P-106.2 and P-107.1 through P-107.7 in Chapter 1. P1-1 Chapter 2 DEFINITIONS The following Rhode Island amendment is made to the Sections of Chapter 2: Delete Article 2, Definitions, Rhode Island Blue Page amendments: P2-1 CHAPTER 3 GENERAL REGULATIONS General Regulations The following Rhode Island amendment is made to the Sections of Chapter 3: Add Section 301.4.1 as follows, to the Rhode Island State Plumbing Code. 301.4.1 Prohibited Connections: The use of potable water as an open loop, single pass heat exchange fluid for the refrigeration cycle of HVAC equipment is prohibited. Retain Rhode Island Blue Page Section 303.2 and renumber it as 301.7. 301.7 Public Systems Available: A public water system and/or public sewer shall be deemed available to premises used for human occupancy when so determined by the rules and regulations of either the state, regional or local authority having jurisdiction. Retain Rhode Island Blue Page Section P-303.3, Water Meter and renumber it as 301.8. 301.8 Water Meter: Every building connected to a public metered water supply shall have a water meter installed before a Certificate of Occupancy is issued. Retain Rhode Island Blue Page Section P-308.3, Freezing, and delete I.P.C. Section 306.6. Renumber section as follows: 306.6 Freezing: Water service shall be installed below recorded frost penetration but not less than four feet six inches below grade. In climates with freezing temperatures, plumbing piping in exterior building walls or areas subjected to freezing temperatures shall be protected against freezing by insulation or heat or both. Retain Rhode Island Blue Page section P-308.4, Sewer Depth, and delete I.P.C. section 306.6.1. Renumber section as follows: P3-1 306.1 Sewer Depth: Building sewers that connect to private sewage disposal systems shall meet the requirements of the Department of Environmental Management’s Regulations for Individual Sewage Disposal Systems. Public building sewers shall be a minimum of 36 inches below grade. Amend I.P.C. Section 309.6, Sway Bracing, as follows: 309.6 Sway Bracing: Rigid support sway bracing shall be provided at changes in direction greater than 45 degrees (0.79 rad) for pipe sizes 4 inches (102 mm) and larger, except for Residential R-3 and R-4 use groups. Amend I.P.C. Section 309.7, Anchorage, as follows: 309.7 Anchorage: Anchorage shall be provided to restrain drainage piping from axial movement except for Residential R-3 and R-4 use groups. P3-2 CHAPTER 4 FIXTURES The following Rhode Island amendments are made to the Sections of Chapter 4. Amend Rhode Island Blue Page Section P-1202.5, Customer Facilities, to read as follows: 405.5 Customer Facilities: Customers and patrons shall be provided with public toilet facilities in restaurants, nightclubs, places of public assembly and mercantile buildings. In shopping centers and shopping malls, required facilities shall be based on total square footage and facilities shall be installed in individual stores or in a central toilet area if the distance of travel from the main entrance of any store does not exceed 500 feet (152mm) or more than one flight of stairs. Exceptions: 1. Customer facilities are not required in buildings with a customer occupant load of less than 150 which do not serve food or beverage. 2. Customer facilities are not required in facilities which serve food or beverage with a customer occupant load of 30 or less. Delete Rhode Island Blue Page Section P-1203.l, Toilet Room, without substitution. Delete I.P.C. Section 405, Accessible Plumbing Fixtures and utilize the provisions of Rhode Island Regulations SBC-14, 15 and 16. P4-1 Amend Section 425.4, Shower Valves, as follows: 425.4 Shower Valves: Shower and tub-shower combination valves shall be balanced pressure, thermostatic or combination mixing valves which conform to the requirements of ASSE 1016 or CSA CAN/CSA-B125. Such valves shall be equipped with handle position stops that are field adjusted in accordance with the manufacturer’s instructions to a maximum hot water setting of 120 degrees F (49 degrees C). Exception: By special exception of the Plumbing Inspector, balanced pressure, thermostatic or combination mixing valves shall not be required for showers and tub-shower combinations in one or two family dwellings and multiple showers supplied with a single tempered water supply provided the hot water supply for such showers is controlled by an approved master thermostatic mixing valve adjusted in accordance with the manufacturer’s instructions to a maximum hot water setting of 120 degrees F (49 degrees C). The Rhode Island amendment to section P-403.4, Existing building, sewers and drains, is deleted without substitution: Delete Rhode Island section P-1203.2, Water Closet Compartment, without substitution: Delete Rhode Island section P-1203.3, water closets, without substitution. Delete Rhode Island Section P-1203.4, Lavatory, without substitution: Delete Rhode Island Section P-1203.5, Drinking Fountain, without substitution: Delete Rhode Island Section P-1206.4 without substitution: Delete Rhode Island Blue Page P-1216.7 without substitution: P4-2 CHAPTER 5 WATER HEATERS The following Rhode Island amendments are made to the Sections of Chapter 5. Delete I.P.C. Section 501.6, without substitution: Delete I.P.C. Section 505.8, Required Pan, substitute Rhode Island Blue Page amendment, P-1506.4.3, Safe Waste, as renumbered: 505.8 Safe Waste: A safe waste shall be installed under a water heater, 6 gallon capacity or larger, that is elevated above the basement where there is occupancy below and shall be piped indirectly to a proper open fixture or stand pipe property trapped and vented. The safe waste pan shall be at least 2” deep and shall have a 2” minimum clearance around the tank. The relief valve shall not discharge into the pan but shall discharge into the drain of the safe waste. Minimum size waste pipe shall be 1” for a distance of 1’ where the size shall increase to a minimum size of 1 ¼” to accept the relief valve discharge. Where floor drains and other acceptable points of indirect discharge are installed no safe waste shall be required. Delete Rhode Island amendments P-508.4, Soldered Joints, and P-509.5, Soldered Joints, without substitution. P5-1 CHAPTER 6 WATER SUPPLY AND DISTRIBUTION The following Rhode Island amendments are made to the Sections of Chapter 6: Amend I.P.C. Section 605.4, as follows: 605.4 Maximum flow and water consumption: The maximum water consumption flow rates and quantities for all plumbing fixtures and fixture fittings shall be in accordance with Table 605.4. REVISE SECTION 608.2.1, PIPING INSULATION, OF THE INTERNATIONAL PLUMBING CODE TO READ AS FOLLOWS: 608.2.1 Piping Insulation: Piping in required return circulation shall be in accordance with the Energy Code listed in Chapter 14, entitled REFERENCED STANDARDS. 608.2.1 Piping Insulation: Piping is required return circulation systems shall be insulated. ADD SECTION 608.5, PIPE INSULATION, TO THE INTERNATIONAL PLUMBING CODE AS FOLLOWS: 608.5 Pipe Insulation: Hot water piping insulation shall be in accordance with the Energy Code listed in Chapter 14, entitled REFERENCED STANDARDS. Amend Section 609.9 of the Rhode Island State Plumbing Code, to read as follows: 609.9 Reutilization Prohibited: Water utilized for non-potable processes shall not be returned to the potable water system. Such water shall be discharged to the drainage system through an air gap or shall be utilized for non-potable purposes. P6-1 The following Rhode Island amendment is added to the Sections of Chapter 6: Replace I.P.C. Table 609.16.1 with Rhode Island Blue Page amendments P- 1604.2 and renumber as follows: Table 609.16.1 DISTANCE FROM SOURCES OF CONTAMINATION TO PRIVATE WATER SUPPLIES AND PUMP SUCTION LINES Source of Contamination Distance (feet) b Sewer 50 Septic Tank 50 Subsurface Pits 50 Fixture 100 Sewer of Cast Iron (leaded or mechanical joints or approved plastic) 10 Subsurface Pits 100c Seepage Pits 100 Cesspools 100 Barnyard 100 Farm Silo 25 Pump house floor drain of cast iron draining to ground surface 2 Note a. 1 foot = 304.8mm Note b. These distances constitute minimum separation and shall be increased in areas of creviced rock or limestone, or where the direction of the ground water is from sources of contamination toward the well. These distances shall also be increased as required by the Rhode Island Department of Environmental Management, Division of Land Resources (SDS Regulations or local zoning ordinances). Note c. When approved by the authority having jurisdiction and under special soil conditions, this distance may be reduced. However, a minimum separation of not less than 50 feet shall be maintained. Delete Rhode Island Blue Page Section P-503.8, Maximum Flow, without substitution. P6-2 CHAPTER 7 SANITARY DRAINAGE The following Rhode Island amendments are made to the Sections of Chapter 7: Amend I.P.C. Section, Scope, as follows: SECTION 701 GENERAL 701.1 Scope: The provisions of this chapter shall govern the materials, design construction, and installation of sanitary drainage systems in accordance with the authority having jurisdiction. Delete I.P.C. Section 701.4, Sewage Backflow, without substitution: Amend I.P.C. Section701.4.1, Location of Backwater Valves, as follows: 701.4.1 Location of Backwater Valves: Backwater valves shall be installed so that access is provided to the working parts for service and repair in accordance with the authority having jurisdiction. Amend I.P.C. Section 701.6, as follows: 701.6 Damage to drainage system or public sewer: Wastes detrimental to the public sewer system or detrimental to the functioning of the sewage-treatment plant shall be treated and disposed of in accordance with Section 1004 as directed by the code official authority having jurisdiction. P7-1 CHAPTER 8 INDIRECT/SPECIAL WASTE The following Rhode Island amendment is added to the Sections of Chapter 8: Amend Rhode Island Section P-702, Special Wastes, by renumbering as following: 804.4 Reverse Osmosis Waste: Discharge piping from reverse osmosis water shall be with PB or PE pipe and fittings in accordance with the manufacturers’ installation standards. P8-1 CHAPTER 9 VENTS The following Rhode Island amendments are made to the Sections of Chapter 9: Delete I.P.C. Table 911.4 and substitute Rhode Island Table P-913.4, amended to read as follows: TABLE 911.4 WASTE STACK VENT SIZE ________________________________________________________ Stack Size Total Discharge Total Discharge (inches) into one for stack branch interval (dfu) (dfu) 2 2 4 2 ½ NL 8 3 NL 24 4 NL 50 5 NL 75 6 NL 100 Note a, NL means no limit Amend I.P.C. Section 905.2, Frost Closure, to read as follows: Change Rhode Island amendment P-914.1, General to read: 905.2 General: Each vent extension through a roof shall have a minimum size of 2”. Where this results in an increase in size of the vent extension, the change in diameter shall be made inside the building a minimum of 6” below the roof with an approved fitting. P9-1 CHAPTER 10 TRAPS The following Rhode Island amendments are made to the Sections of Chapter 10: Amend I.P.C. Section 1004.1, Interceptors Required, as follows: SECTION 1004 INTERCEPTORS AND SEPARATORS 1004.1 Interceptors Required: Interceptors for oil, grease, sand and other substances harmful or hazardous to the building drainage system, the public sewer or sewage treatment plant or processes shall be provided as required in this chapter. Where food waste grinders connect to grease interceptors, the grease interceptor shall be sized and rated for the discharge of the food waste grinder. All interceptors shall be installed in accordance with the authority having jurisdiction. Amend I.P.C. Section 1004.6, Separators Required, as follows: 1004.6 Separators Required: At repair garages; gasoline stations with grease racks, grease pits or work racks; and at factories where oily and flammable liquid wastes are produced, separators shall be installed into which all oil-bearing, grease-bearing or flammable wastes shall be discharged before emptying in the building drainage system or other point of disposal. All separators shall be installed in accordance with the authority having jurisdiction. P10-1 CHAPTER 11 STORM DRAINAGE The following Rhode Island amendments are made to the Sections of Chapter 11: Amend Rhode Island Table 803.1 by renumbering to 1107.1 and delete I.P.C. Table 1107.1. TABLE 1107.1 SIZE OF HORIZONTAL BUILDING STORM DRAINS AND BUILDING STORM SEWERS ________________________________________________________________________ Maximum projected area in square feetb gallons per minute flow for various slopes Diameter l/8 in. l/4 in. l/2 in. of drain per ft. per ft. per ft. inches slope slope slope sq. fta. gpm sq.ft. a gpm sq. fta. gpm 3 1265 34 1785 48 2529 68 4 2892 78 4077 110 5785 156 5 5138 l39 7262 195 10277 278 6 8231 222 11615 314 16462 445 8 12692 478 25077 677 35385 956 10 31846 800 44923 1214 63692 1721 12 51231 1384 72308 1953 102462 2768 15 91538 2473 129231 3491 183077 4946 Note a: Table 1706.1 based upon Rhode Island rainfall at 2.6 inches per hour. Note b: 1 inch per foot = 0.0833mm/m; 1 sq. ft. = 0.993m2 : l gallon per minute = 3.781/m. P11-1 Amend Rhode Island Blue Page Table P-803.3 by renumbering to 1107.3 TABLE P-1107.3 SIZE OF SEMICIRCULAR ROOF GUTTERS Maximum of projected roof area for gutters of various slopesc Diameter 1/16 in. 1/8 in. ¼ in. ½ in. of gutterb per ft. per ft. per ft. per ft. inches slope slope slope slope sq.ft. a gpm sq.ft. a gpm sq.fta. gpm sq.ft. a gpm 3 680 262 960 369 1360 523 1920 738 4 1440 554 2040 785 2880 1108 4000 1569 5 2500 962 3520 1354 5000 1923 7000 2723 6 3810 1477 5440 2092 7000 2954 11000 4262 7 5520 2123 7000 3000 11010 4246 15600 6000 8 7960 3062 11200 4308 14400 5538 22400 8615 10 14000 5538 20400 7845 28800 11077 40000 15385 Note a: Table 1107.3 is based upon Rhode Island rainfall at 2.6 inches per hour. Note b: l inch per foot = 0.0833mm/m: l sq.ft. = 0.993m2 : 1 gallon per minute = 3.78 1/m. Delete I.P.C. Section 1108, Secondary (Emergency) Roof Drains, without substitution. P11-2 APPENDIX B Add the inch/hour rainfall amount of 2.6 to Appendix B, as follows and provide blue page 100a. Rhode Island: Providence…………..2.6 100a STATE BUILDING CODE REGULATION – 1998 The following list includes all regulations promulgated by the State Building Code Standards Committee. All regulations are available for a fee at the State Building Commission. 1. Building Code………………………………………… SBC-1 2. One and Two Dwelling Family Dwelling Code……………………………………….. .SBC-2 3. Plumbing Code………………………………………. SBC-3 4. Mechanical Code……………………………………... SBC-4 5. Electrical Code………………………………………. SBC-5 6. Manufactured Buildings and Building Components…. SBC-6 7. ANSI A225.1 Manufactured Home Installation Standard………………………………….. SBC-7 8. State Energy Code……………………………………. SBC-8 9. Enforcement and Implementation Procedures for Projects Under the Jurisdiction of the State of Rhode Island………………………………………. SBC-9 10. Code Interpretations…………………………………. SBC-10 11. Certification of Building Officials, Building, Electrical, Plumbing and Mechanical Inspectors……………………………… SBC-11 12. New Materials and Methods of Construction………………………………………. SBC-12 13. State Building Code For Existing Schools…………………………………. SBC-13 14. Accessibility for Individuals with Disabilities for Residential Use Groups R-2 and R-3………………………………….. SBC-14 15. Accessibility for Individuals with Disabilities in State and Local Government Facilities………………………………... SBC-15 16. Accessibility for Individuals with Disabilities…………………………………………… SBC-16 17. Public Buildings Accessibility Meeting Standards……………………………………. SBC-17 18. Native Lumber……………………………………….. SBC-18