Redondo Beach Municipal Code Ch. 6 Mechanical Code

Pursuant to the provisions of Sections 50022.1 to 50022.10, inclusive, of the Government Code of the State and subject to the particular additions, deletions and amendments set forth in this chapter, the rules, regulations, provisions and conditions set forth in that certain Code entitled "2025 California Mechanical Code including Appendices A, B, C, F, and G therein contained, promulgated and published by the International Association of Plumbing and Mechanical Officials of Ontario, California and the California Building Standards Commission. One full printed copy of which, printed as a Code in book form were by the Council ordered filed and which has been filed in the office of the City Clerk, expressly incorporated herein and made a part hereof as fully and for all intents and purposes as set forth herein at length, are hereby established and adopted as the rules, regulations, provisions and conditions to be observed and followed in the erection, installation, alteration, repair, relocation, replacement, addition to, use or maintenance of any heating ventilating, comfort cooling, refrigerator systems, incinerators, or other miscellaneous heat producing appliances in the city; and subject to the additions, deletions, and amendments set forth in this chapter, said Code with Appendices A, B, C, F and G, containing said rules, regulations, standards, provisions, and conditions is hereby established and adopted by reference, and the same shall be designated, known and referred to as the "Mechanical Code" of and for the City.

(§ 4, Ord. 1971 c.s., eff. July 17, 1968, as amended by § 7, Ord. 2076 c.s., eff. September 20, 1972, § 8, Ord. 2231 c.s., eff. May 10, 1978, § 4, Ord. 2404 c.s., eff. November 14, 1984, § 10, Ord. 2476 c.s., eff. October 15, 1987, § 5, Ord. 2565 c.s., eff. January 1, 1990, § 17, Ord. 2663 c.s., eff. July 9, 1992, § 18, Ord. 2753 c.s., eff. February 23, 1996, § 17, Ord. 2834 c.s., eff. July 1, 1999, § 5, Ord. 2857 c.s., eff. October 19, 2000, § 8, Ord. 2893 c.s., eff. October 31, 2002, § 28, 3009 c.s., eff. December 6, 2007, § 21, Ord. 3064 c.s., eff. January 7, 2011, § 35, Ord. 3153 c.s., eff. June 16, 2016, § 25, Ord. 3169 c.s., eff. May 4, 2017, § 50, Ord. 3247 c.s., eff. January 1, 2023, and Ord. 3307-25 c.s., eff. January 1, 2026)

Section 304.5 is hereby added to read as follows:

304.5 Roof mounted appliances. Any appliance located on the roof of a building shall be located, if possible, over a wall or beam or other structural member so that, in the event of fire, the roof alone will not be the only means of structural support. Such equipment shall be anchored or attached in place in such a manner as to resist overturning or shifting by wind or earthquake.

(§ 8, Ord. 2076 c.s., eff. September 20, 1972, as amended by § 1(56), Ord. 2488 c.s., eff. November 4, 1999, § 29, Ord. 3009 c.s., eff. December 6, 2007, § 51, Ord. 3247 c.s., eff. January 1, 2023, and Ord. 3307-25 c.s., eff. January 1, 2026)

Section 104.5 is amended as follows:

Table 104.5 Mechanical Permit Fees is hereby deleted.

104.5 Fees. Refer to RBMC Section 9-1.03 Fees Section [A] 109.2 Schedule of Permit Fees.

104.5.1 Work Commencing Before Permit Issuance. Refer to RBMC Section 9-1.03 Fees Section [A] 109.4 Work Commencing Before Permit Issuance.

104.5.2 Investigation fees. Whenever any work for which a permit is required by this code has been commenced without first obtaining said permit, a special investigation shall be made before a permit may be issued for such work. An investigation fee, in addition to the permit fee, shall be collected whether or not a permit is then or subsequently issued. Refer to RBMC Section 9-1.03 Fees Section [A] 109.2 Schedule of Permit Fees.

(§ 11, Ord. 2476 c.s., eff. October 15, 1987, as amended by § 18, Ord. 2663 c.s., eff. July 9, 1992, § 19, Ord. 2753 c.s., eff. February 23, 1996, § 18, Ord. 2834 c.s., eff. July 1, 1999, § 30, Ord. 3009 c.s., eff. December 6, 2007, § 22, Ord. 3064 c.s., eff. January 7, 2011, § 36, Ord. 3153 c.s., eff. June 16, 2016, § 26, Ord. 3169 c.s., eff. May 4, 2017, § 52, Ord. 3247 c.s., eff. January 1, 2023, and Ord. 3307-25 c.s., eff. January 1, 2026)

Section 104.4.3 is herby amended to read as follows:

104.4.3 Permit Expiration. Refer to RBMC Section 9-1.06 Permit Expiration Section [A] 105.5 Expiration.

(§ 37, Ord. 3153 c.s., eff. June 16, 2016, as amended by § 27, Ord. 3169 c.s., eff. May 4, 2017, § 53, Ord. 3247 c.s., eff. January 1, 2023, and Ord. 3307-25 c.s., eff. January 1, 2026)

Section 104.3.1 is hereby amended to read as follows:

104.3.1 Construction documents. Construction documents, engineering calculations, diagrams, and other data shall be submitted in two or more sets or digitally where authorized by the Building Official with each application for a permit. The construction documents, computations, and specifications shall be prepared by, and the mechanical system designed by, a registered design professional. Construction documents shall be drawn to scale with clarity to identify that the intended work to be performed is in accordance with the code.

Exception: The Authority Having Jurisdiction shall be permitted to waive the submission of construction documents, calculations, or other data where the Authority Having Jurisdiction finds that the nature of the work applied for is such that reviewing of construction documents is not necessary to obtain compliance with the code.

(§ 38, Ord. 3153 c.s., eff. June 16, 2016, as amended by § 28, Ord. 3169 c.s., eff. May 4, 2017, § 54, Ord. 3247 c.s., eff. January 1, 2023, and Ord. 3307-25 c.s., eff. January 1, 2026)

Section 104.3.2 is hereby amended to read as follows: Table 104.5 is hereby deleted.

104.3.2 Plan Review Fees. Refer to RBMC Section 9-1.03 Fees Section [A] 109.2 Schedule of Permit Fees.

(§ 39, Ord. 3153 c.s., eff. June 16, 2016, as amended by § 29, Ord. 3169 c.s., eff. May 4, 2017, § 55, Ord. 3247 c.s., eff. January 1, 2023, and Ord. 3307-25 c.s., eff. January 1, 2026)

Section 104.3.3 is hereby amended to read as follows:

104.3.3 Time Limitation of Application. Refer to RBMC Section 9-1.06.1.1 Expiration of Plan Review Section [A] 105.3.2 Time Limitation of Application.

(§ 40, Ord. 3153 c.s., eff. June 16, 2016, as amended by § 30, Ord. 3169 c.s., eff. May 4, 2017, § 56, Ord. 3247 c.s., eff. January 1, 2023, and Ord. 3307-25 c.s., eff. January 1, 2026)

Section 106.1 is hereby amended to read as follows:

106.1. General. Any person who violates a provision of this code or fails to comply with any of the requirements thereof or who erects, constructs, enlarges, alters, repairs, moves, improves, removes, converts, demolishes, equips, uses, or maintains a mechanical system in violation of the approved construction documents or directive of the Building Official, or of a permit or certificate issued under the provisions of this code, shall be subject to the penalties as prescribed by law. Every person who willfully resists, delays, obstructs or interferes in any way with the Building Official or his or her authorized representative in the discharge or attempt to discharge any duty of his or her office or employment shall be guilty of a violation of this Chapter.

Section 106.3 is hereby amended to read as follows

106.3 Penalties. Refer to RBMC Section 9-1.04 Violations and Penalties Section [A] 114.4 Violation Penalties.

(§ 11, Ord. 2476 c.s., eff. October 15, 1987, as amended by § 19, Ord. 2663 c.s., eff. July 9, 1992, and § 20, Ord. 2753 c.s., eff. February 23, 1996; repealed by § 19, Ord. 2834 c.s., eff. July 1, 1999, § 9, Ord. 2893 c.s., eff. October 31, 2002, as amended by § 31, Ord. 3009 c.s., eff. December 6, 2007, § 23, Ord. 3064 c.s., eff. January 7, 2011, § 41, Ord. 3153 c.s., eff. June 16, 2016, § 31, Ord. 3169 c.s., eff. May 4, 2017, § 57, Ord. 3247 c.s., eff. January 1, 2023, and Ord. 3307-25 c.s., eff. January 1, 2026)

(§ 11, Ord. 2476 c.s., eff. October 15, 1987; repealed by § 20, Ord. 2663 c.s., eff. July 9, 1992)

(a) Treatment of utilities.

(b) Isolation of vibration and sources of structure-borne noise in residential condominium projects where units have common walls and/or floors and ceilings.

(1) Shock mounting of mechanical equipment. All permanent mechanical equipment, such as motors, compressors, pumps, and compactors, which, because of their rotation, reciprocation, expansion, and/or contraction, turbulence, oscillation, pulsation, impaction, or detonation, is determined by the Chief Building Official to be a source of structural vibration or structure-borne noise shall be shock-mounted with inertia blocks or bases and/or vibration isolators in a manner approved by the Chief Building Official. Domestic appliances which are cabinet installed or built into the individual units, such as clothes washers and dryers, or other appliances which are determined by the Chief Building Official to be a source of structural vibration or structure-borne noise, shall be isolated from the cabinets and the floor or ceiling by resilient gaskets and vibration mounts approved by the Chief Building Official. The cabinets in which such appliances are installed should be offset from the back wall with strip gasketing of felt, cork, or similar material approved by the Chief Building Official. Where such appliances utilize water, flexible connectors shall be installed on all water lines. If provisions are made within the units for the installation of non-permanent appliances, such as clothes washers and dryers, then permanent rubber mounting bases and surface plates shall be installed in a manner approved by the Chief Building Official.

(2) Location of plumbing and mechanical fixtures. No plumbing or mechanical fixture shall be located on a common wall between two separate units.

(c) Attenuation of noise in residential condominium projects.

(1) General. Wall and floor/ceiling assemblies separating units from each other or from public or quasi-public spaces, such as interior corridors, laundry rooms, recreation rooms, and garages, shall provide airborne sound insulation for walls and both airborne and impact sound insulation for floor/ceiling assemblies.

(2) Airborne sound insulation. All wall assemblies enumerated or alluded to in subsection (d)(3)(a) of this section shall be of a type of construction which has a minimum rating of 55 STC (Sound Transmission Class). All floor/ceiling assemblies enumerated or alluded to in subsection (d)(3)(a) of this section shall be of a type of construction which has a minimum rating of 50 STC. Wood floor joints shall not be continuous between separate condominium units. Penetrations or openings in the construction for piping, electrical outlets and devices, recess cabinets, bathtubs, soffits, heating and ventilating and/or air-conditioning intake and exhaust ducts, and the like shall be sealed, lined, insulated, or otherwise treated to maintain the required rating, and such treatment shall be approved by the Chief Building Official. Entrance doors to the unit shall be of solid construction and, together with perimeter seals, shall have a minimum rating of 33 STC. Such perimeter seals shall be maintained in effective operating condition.

(3) Impact sound insulation. All separating floor/ceiling assemblies enumerated or alluded to in subsections (c)(1) and (c)(2) of this section shall be of a type of construction which has a minimum rating of 50 IIC (Impact Insulation Class). Floor coverings may be included in the assembly to obtain the required ratings but shall be retained as a permanent part of the assembly and may only be replaced by another floor covering which provides the same or a greater impact insulation.

(4) Verification of sound class. STC and IIC ratings shall be based on the results of laboratory measurements and will not be subjected to field testing. The STC rating shall be based on the American Society for Testing and Materials System specified in ASTM E90 and E413, or equivalent. The IIC rating shall be based on the system in use at the National Bureau of Standards, or equivalent. Ratings obtained from other testing procedures will require adjustment to the rating systems set forth in this subsection. In documenting wall and floor/ceiling compliance with the required sound ratings, the applicant or sponsor of the condominium development shall either furnish the Chief Building Official with data based upon tests performed by a recognized and approved testing laboratory or furnish the Chief Building Official with verified manufacturer's data on the ratings of the various wall and floor/ceiling assemblies utilized in the project. Additionally, the Chief Building Official will develop a ready reference file indicating the STC and IIC ratings of the wall and floor/ceiling assemblies commonly utilized in condominium structures.

(§ 32, Ord. 3009 c.s., eff. December 6, 2007, as amended by § 1, Ord. 3102 c.s., eff. February 8, 2013)