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WAC Chapter 51-50.

The following documents are hereby adopted by reference:

A. The International Building Code, 2015 Edition, including Appendix Chapters C, E, F, G, H, I, J and the 2015 Edition of the International Existing Building Code, that are published by the International Code Council.

B. The Twentieth Edition of the Fire Resistive Design Manual, published by the Gypsum Association.

C. Fees as established by City Council resolution.

The following amendments to the International Building Code are adopted:

Section [A] 101.4 Referenced Codes is amended as follows:

The other codes listed in Sections 101.4.1 through 101.4.6 and referenced elsewhere in this code shall be considered part of the requirements of this code to the prescribed extent of each such reference.

101.4.1 Electrical.

Where referenced as the ICC Electrical Code shall be replaced with the National Electric Code. The authority having jurisdiction over this code is the Washington State Department of Labor and Industries, Electrical Division.

[A] 101.4.2 Gas.

The provisions of the 2015 International Fuel Gas Code, and where applicable, the 2015 National Fuel Gas Code (NFPA 54) and the 2015 Liquefied Petroleum Gas Code (NFPA 58) adopted under WAC Chapter 51-52.

[A] 101.4.3 Mechanical.

The provisions of the 2015 International Mechanical Code WAC Chapter 51-52 shall apply to the installation, alterations, repairs, and replacement of mechanical systems, including equipment, appliances, fixtures, fittings, and/or appurtenances, including ventilating, heating, cooling, air-conditioning, and refrigeration and refrigeration systems, incinerators, and other energy-related systems.

[A] 101.4.4 Plumbing.

Where referenced as the International Plumbing Code shall be replaced with the 2015 Uniform Plumbing Code. The provisions of the 2015 Uniform Plumbing Code, WAC Chapter 51-56, including Appendices A, B and I and exclude Chapters 12 and 14, and those requirements relating to venting and combustion air or fuel fire appliances as found in Chapter 5. The Uniform Plumbing Code shall apply to the installation, alteration, repair, and replacement of plumbing systems, including equipment, appliances, fixtures, fittings, and appurtenances, and where connected to a water or sewage system and all aspects of a medical gas system. The authority having jurisdiction for regulation of private sewage disposal systems is the Snohomish Health District. The construction and installation of side sewers, water meter services, water, or sewer mains, or other related construction are also governed by the current adopted edition of the Snohomish Public Works Standards. Where, in any specific case, different sections of this code or other codes and standards adopted by the City specify different materials, methods of construction, or other requirements, the most restrictive shall govern. Where a conflict exists between the provisions of Appendix I and the manufacturer’s installation instructions, the conditions of the listing and manufacturer’s installation instructions shall apply. Where there is a conflict between a general requirement and a specific requirement, the specific requirement shall be applicable.

[A] 101.4.5 Property Maintenance.

The provisions of the 2015 International Property Maintenance Code shall apply to all existing residential and nonresidential structures and all existing premises and constitute minimum requirements and standards for premises, structures, equipment and facilities for light, ventilation, space, heating, sanitation, protection from the elements, life safety, safety from fire and other hazards, and for safe and sanitary maintenance; the responsibility of owners, operators and occupants; the occupancy of existing structures and premises, and for the administration, enforcement, and penalties.

[A] 101.4.6 Fire Prevention.

The provisions of the 2015 International Fire Code, WAC Chapter 51-54A, shall apply to matters affecting or relating to structures; processes and premises from the hazard of fire and explosion arising from the storage, handling, or use of structures, materials, or devices; from conditions hazardous to life, property, or public welfare in the occupancy of structures or premises; and from the construction, extension, repair, alteration, or removal of fire suppression and alarm systems or fire hazards in the structure or on the premises from occupancy or operation. Where, in any specific case, different sections of this code or other codes and standards adopted by the City specify different requirements, the most restrictive shall govern. Where there is a conflict between a general requirement and a specific requirement, the specific requirement shall apply.

[A] 101.4.7 Energy.

The provisions of the 2015 International Energy Conservation Code of the State of Washington adopted under WAC 51-11C and 51-11R shall apply to commercial and residential building sites and associated systems and shall be the maximum and minimum energy code for residential construction in each city, town, or county. The 2015 International Energy Conservation Code of the State of Washington is also referred to as the 2015 Washington State Energy Code. This code shall regulate the design and construction of buildings for the effective use and conservation of energy over the useful life of each building and is intended to provide flexibility to permit the use of innovative approaches and techniques to achieve this objective. This code is not intended to abridge safety, health or environmental requirements contained in other applicable codes or ordinances. Where conflicts arise, the provisions of WAC 51-11C and 51-11R shall govern.

Section [A] 103.3 Deputies is amended to add the following paragraphs:

Snohomish County Fire District #4, Chief Fire Officer or their designee, under the direction of the Building/Fire Official, is authorized and deputized to enforce the provisions of the fire and life safety requirements of this code. It shall be recognized that the City retains jurisdiction in all matters relating to the adopted codes.

Snohomish Police Department, the Police Chief or their designee, under the direction of the Building/Fire Official, is authorized and deputized to assist in the enforcement of this code, including but not limited to assisting in the enforcement of Notices of Violations and/or Orders issued by the Building/Fire Official, Courts, or other jurisdictional powers.

Section [A] 105.1 – Permits is amended to read as follows:

Section [A] 105.1 Required.

Except as specified in SMC 19.04.036, any owner or their authorized agent who intends to construct, enlarge, alter, repair, move, demolish, or change the occupancy of a building or structure, or to erect, install, enlarge, alter, repair, remove, convert, or replace any electrical, gas, mechanical, or plumbing system, the installation of which is regulated by this code, or to cause any such work to be done, shall first submit a complete permit application with the City and obtain the required permit.

Section [A] 105.1.1 Annual Permit is not adopted.

Section [A] 105.1.2 Annual Permit Records is not adopted.

Section [A] 105.5 Expiration is amended by the addition of the following section:

Section [A] 105.5.1.

Detailed provisions for when a permit is considered valid, expired, and renewal requirements are provided in SMC 19.04.180, 19.04.181, 19.04.182, and 19.04.183.

Section [A] 107.1 Submittal Documents is amended by the addition of the following paragraph:

The applicant may be required to provide a survey of the property at the time of submittal. The survey shall be prepared by a surveyor, licensed by the State of Washington to perform such work. Where there is insufficient information regarding, including but not limited to, a legal lot, property lines, easements, rights of way, or other requirements of the Snohomish Municipal Code, a survey shall be required. The costs of the survey shall be borne by the permit applicant.

Section [A] 109.6 Refunds is amended by the addition of the following sentence:

The provisions applicable to refunds shall be in accordance with SMC 19.04.235.

Section [A] 110.3 Required Inspections is amended to read:

Section [A] 110.3 Required Inspections.

The Building/Fire Official or their designee, upon notification, shall make the inspections set forth in Sections 110.3.1 through 110.3.12. It shall be the duty of the owner or their authorized agent including person(s) performing the work to request required inspections in a timely manner and as the work progresses. For inspection requirements, process and penalties see Section 19.04.039. This duty is extended and applicable to all required inspections within the adopted referenced codes.

[A] 110.3.1 Footing and Foundation Inspection.

Footing and foundation inspections shall be made after excavations for footings are complete and any required reinforcing steel is in place. For concrete foundations, any required forms, reinforcing steel, anchor bolts, or hold-downs shall be in place prior to inspection. Materials for the foundation shall be on the job, except where concrete is ready mixed in accordance with ASTM C94, the concrete need not be on the job.

[A] 110.3.2 Concrete Slab and Under-Floor inspection.

Concrete slab and under-floor inspections shall be made after in-slab or under-floor reinforcing steel and building service equipment, conduit, piping accessories, insulation, and other ancillary equipment items are in place, but before any concrete is placed or floor sheathing installed, including the sub-floor.

[A] 110.3.3 Lowest Floor Elevation.

In flood hazard areas, upon placement of the lowest floor, including the basement, and prior to further vertical construction, the elevation certification required in Section 1612.5 shall be submitted to the Building/Fire Official.

[A] 110.3.4 Shear Walls.

Includes interior and/or exterior wall frame construction, covering, nailing, anchor bolt, or hold-down placement prior to placing permanent exterior or interior wall covering. Alternate brace wall construction is considered part of this required inspection.

[A] 110.3.5 Frame Inspection.

Framing inspections shall be made after the roof deck or sheathing, all framing, fire-blocking, and bracing are in place; and pipes, chimneys, ducts, and vents to be concealed are complete; and the rough electrical, plumbing, heating, pipes, and ducts are approved. Interior shear walls may be inspected either prior to or at the time of this inspection. The rough electrical is to be inspected and approved by the Washington State Department of Labor and Industries – Electrical Division prior to receiving a framing inspection by the City of Snohomish.

[A] 110.3.6 Fire and smoke-resistant penetrations.

Protection of joints and penetrations in fire-resistance-rated assemblies, smoke barriers and smoke partitions shall not be concealed from view until inspected and approved.

[A] 110.3.7 Insulation Placement.

Insulation inspection shall be made after placement of batt or other insulation to exterior walls, floors, attics, or other conditioned space. Baffles in attic spaces, under-floor where vents are placed in rim joists. An insulation certificate shall be on site at the time the final inspection is conducted.

[A] 110.3.8 Lath and Gypsum Board Inspection.

Lath and gypsum board and gypsum panel product inspections shall be made after lathing, gypsum board and gypsum panel products, interior and exterior, are in place, but before any plastering is applied or gypsum board and gypsum panel product joints and fasteners are taped and finished.

Exception: Gypsum board and gypsum panel products that are not part of a fire-resistance-rated assembly or a shear assembly.

[A] 110.3.9 Energy Efficiency Inspections.

As required by the International Energy Conservation Code for Washington State as adopted under RCW Chapter 19.27.

[A] 110.3.10 Other Inspections.

In addition to the inspections specified above, the Building/Fire Official is authorized to make or require other inspections of any construction work to ascertain compliance with the provisions of this code and other laws that are enforced by the department of building safety.

[A] 110.3.11 Special Inspections.

For special inspections, see IBC Chapter 17. The Building/Fire Official shall also be notified when work requiring special inspection is ready for inspection to ensure compliance with adopted codes. IBC Chapter 1704 does not negate required inspections by the Building/Fire Official.

[A] 110.3.12 Final Inspection.

The final inspection shall be made after all work required by the building permit is completed. Prior to requesting a final inspection by the Building/Fire Official, the permit holder or their authorized agent shall obtain the following inspections:

1) A final electrical inspection and approval by the Washington State Department of Labor and Industries – Electrical Division; and

2) A final inspection and approval of any requirements imposed by a City Department(s) or Agency as a condition of project approval; and where applicable

3) Flood Hazard Documentation. Where located in a designated flood hazard area, documentation of the elevation of the lowest floor as required in Section 1612.5.

Section [A] 111.3 Temporary Occupancy is amended by the addition of the following paragraph:

All requirements imposed or conditions of permit approval must be completed and approved by the City before the Building/Fire Official will grant occupancy of a building or structure. Temporary certificates of occupancy or temporary occupancy will not be approved by the Building/Fire Official without first obtaining the approval of the Planning and Development Services Director or Mayor.

Section 113 – Titled Board of Appeals is hereby amended to read:

Section [A] 113 – Appeal of Orders, Decisions, or Determinations to City Land Use Hearing Examiner.

Section [A] 113.1 General is amended to read as follows:

Section [A] 113.1 General.

In order to hear and decide appeals of orders, decisions or determinations made by the Building/Fire Official relative to the application and interpretation of this code shall be made in writing to the City Land Use Hearing Examiner. Appeals shall be in accordance with Section 19.04.310.

Section [A] 113.2 Limitation on Authority.

An appeal shall be based on a claim that the true intent of this code or the rules legally adopted there under have been incorrectly interpreted, the provisions of this code do not fully apply, or an equally code or better form of construction is proposed. The Hearing Examiner shall have no authority to waive requirements of this code.

Section [A] 114 Violations. Section [A] 114.4 Violation Penalties is amended to read as follows:

Section [A] 114.4 Violation Penalties.

Any person who violates a provision of this code or fails to comply with any of the requirements thereof or who erects, constructs, alters, or repairs a building or structure, occupies or uses a building or structure in violation of this code, or fails to comply with the approved construction documents including any conditions for approval, or directive of the Building/Fire official, or a permit or certificate issued under the provisions of this code shall be subject to penalties as prescribed in SMC 19.04.520.

Section [A] 115 Stop Work Order. Section [A] 115.3 is deleted and replaced by the following:

Section [A] 115.3 Unlawful Continuance.

Any person who shall continue any work after having been served with a stop work order, except where a person is directed by the Building/Fire Official to perform work to remove a violation or unsafe condition, shall be subject to the penalties as prescribed in SMC 19.04.520.

Section 117 Relocated or Moved Building(s) is hereby added to read as follows:

Section 117.1 Relocated or Moved Buildings.

Relocated or moved buildings or structures shall comply with the provisions of this code. A building permit is required to relocate or move a building(s) into or out of the City of Snohomish. The Building/Fire Official may not require compliance with all energy efficient standards where interior/exterior wall coverings are not removed, or other requirements for new construction except where the scope of work is considered a substantial improvement under SMC 19.04.038. Relocated or moved buildings shall meet the provisions of SMC Title 14 Land Use Code.

Section 117.2 Scope of Work.

Requirements based on the scope of work may be determined on a case by case basis prior to issuance of the building permit.

Section 117.3 Structural Evaluation.

Relocated or moved buildings shall be evaluated by a structural engineer licensed by the State of Washington to perform such work prior to the relocation or moving of a building. The Structural Engineer shall provide the Building/Fire Official with a written evaluation that includes: any existing structural defects that would prevent the proposed structure from being moved, temporary or permanent measures needed to make the structure sound to facilitate the move/relocation, and permanent structural corrections to make the structure occupiable. Buildings which are determined to be structural unsound shall not be relocated or moved until the building can be made structurally sound.

Section [F] 501.5 Fire District – Electronic/CAD Plan Set is hereby added to read as follows:

Section [F] 501.5 Fire District - Electronic/Cad Plan Set.

Prior to final approval and issuance of a Certificate of Occupancy for new construction and substantial improvements, the permit holder or their authorized agent shall provide the Fire District with an electronic/CAD plan set on a format utilized by the Fire District. The electronic plan set shall contain detailed site plans, floor plans, fire protection/suppression systems, exiting systems, fire fighter hazards, fire hydrant locations and valves, fire department connections, and locations of any and all fire department emergency communication equipment, or other information as required by the Fire District. The building and/or property owner is responsible for providing updated electronic/CAD plan sets upon changes in occupancy, tenant improvement, or changes to the site.

Section [F] 504.3 Stairway Access to Roof is amended to read as follows:

Section [F] 504.3 Stairway Access to Roof.

New buildings three or more stories above grade plane, except those with a roof slope greater than four units vertical in 12 units horizontal (33.3 percent slope), shall be provided with a stairway to the roof. Stairway access to the roof shall be in accordance with Section 1011.12. Such stairway shall be marked at street and floor levels with a sign indicating that the stairway continues to the roof. Where roofs are used for roof gardens or for other purposes, stairways shall be provided as required for such occupancy classification.

Section [F] 505.1 Premises Identification is amended by the addition of the following paragraph:

Letters or numbers shall be a minimum of six inches high (6 inches, 78 mm) for residential and a minimum of twelve inches (12 inches) high for commercial. Note: For the purposes of adoption, an error in the published edition of the International Building Code references a section of the International Fire Code that is incorrect, namely Section [F] 501.2. Until the published edition of the International Building Code (IBC) is corrected, this paragraph shall also amend the erroneous section referenced as [F] 501.2, as published.

Section 901.2.1 Key Boxes is hereby added to read as follows:

Section 901.2.1 Key Boxes.

A key box shall be installed on all buildings, occupancies, or premises that are equipped with a fire protection system, and all other buildings or appurtenances where immediate access may be necessary. The key box shall be of the type approved by the Fire District. The key box shall be installed in a location recommended by the District, and shall contain keys necessary to gain access. The model number and type shall be determined by the Fire District. Also see additional requirements located in Section [F] 506 of the International Fire Code.

Exceptions: 1) Single family residences not used as bed and breakfast.

Section [F] 903 Automatic Sprinkler Systems. Section [F] 903.1 General is deleted and replaced by the following:

Section [F] 903.1 General.

An automatic sprinkler system shall be installed in all occupancies where the total gross floor area is 5,000 square feet or more regardless of fire barriers or fire walls and where specifically required in the code based on construction type, occupancy, or use. For the purposes of this section, fire barriers or fire walls shall not be used to define separate buildings or uses. Where the code requirements for automatic sprinkler systems are more restrictive than this section, the more restrictive requirements shall govern. Additional requirements are also located in the SMC 19.04.070 Section 508.1.1.

Sections [F] 903.2.1.1 through [F] 903.2.10.1 are amended to read as follows:

Section [F] 903.2.1.1 Group A-1

An automatic sprinkler system shall be provided for Group A-1 occupancies and intervening floors of the building where one of the following conditions exists:

1. The fire area or total gross floor area is 5,000 square feet or more pursuant to Section [F]903.1.

2. The fire area has an occupant load is 300 or more.

3. The fire area or occupancy is located on a floor other than a level of exit discharge serving such occupancies.

4. The fire area or occupancy contains a multi-theater complex.

Section [F] 903.2.1.2 Group A-2

An automatic sprinkler system shall be provided for Group A-2 occupancies and intervening floors of the building where one of the following conditions exists:

1. The fire area or total gross floor area is 5,000 square feet or more pursuant to Section [F]903.1.

2. The fire area has an occupant load is 100 or more.

3. The fire area or occupancy is located on a floor other than a level of exit discharge serving such occupancies.

Section [F] 903.2.1.3 Group A-3

An automatic sprinkler system shall be provided for Group A-3 occupancies and intervening floors of the building where one of the following conditions exists:

1. The fire area or total gross floor area is 5,000 square feet or more pursuant to Section [F] 903.1.

2. The fire area has an occupant load is 300 or more.

3. The fire area or occupancy is located on a floor other than a level of exit discharge serving such occupancies.

Section [F] 903.2.1.4 Group A-4

An automatic sprinkler system shall be provided for Group A-4 occupancies and intervening floors of the building where one of the following conditions exists:

1. The fire area or total gross floor area is 5,000 square feet or more pursuant to Section [F]903.1.

2. The fire area has an occupant load is 300 or more.

3. The fire area or occupancy is located on a floor other than a level of exit discharge serving such occupancies.

Section [F] 903.2.1.5 Group A-5

An automatic sprinkler system shall be provided for Group A-5 occupancies in concession stands, retail areas, press boxes, and other accessory use areas in excess of 1,000 square feet regardless of fire barriers or fire walls.

Section [F] 903.2.1.6 Assembly occupancies on roofs.

Where an occupied roof has an assembly occupancy with an occupant load exceeding 100 for Group A-3 and 300 for other Group A occupancies, all floors between the occupied roof and the level of exit discharge shall be equipped with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2.

Exception: Open parking garages of Type I or Type II construction.

Section 903.2.1.7 Multiple fire areas.

An automatic sprinkler system shall be provided where multiple fire areas of Group A-1, A-2, A-3 or A-4 occupancies share exit or exit access components and the combined occupant load of those fire areas is 300 or more.

Section 903.2.1.8 Nightclubs.

An automatic sprinkler system shall be provided throughout Group A-2 Nightclubs as defined in this code.

Section [F] 903.2.2 Group B and Ambulatory Care Facilities.

An automatic sprinkler system shall be provided for Group B occupancies and Ambulatory Care Facilities where one of the following conditions exists:

1. The total gross floor area of the Group B Occupancy as defined in Section 304 except Ambulatory Care Facilities is 5,000 square feet or more pursuant to Section [F]903.1.

2. Ambulatory Care Facilities shall be provided with an automatic sprinkler system regardless of floor area or location.

3. Four or more care recipients are incapable of self-preservation, whether rendered incapable by staff or staff has accepted responsibility for care recipients already incapable.

4. One or more care recipients that are incapable of self-preservation are located at other than the level of exit discharge serving such a facility.

Section [F] 903.2.3 Group E.

An automatic sprinkler system shall be provided in all Group E occupancies. This requirement includes:

1. Throughout existing Group E occupancies where substantial improvements or substantial damage has or is occurring.

2. Portable classrooms where a cluster of classrooms exceeds 5,000 square feet, and clusters of portable school classrooms shall be separated as required in Chapter 5 of the Building Code.

3. Portable classrooms regardless of floor area shall be provided with a UL listed monitored fire alarm system, and shall be interconnected to the fire alarm system of permanent buildings such that upon activation will cause the entire fire alarm system to initiate.

4. A minimum water supply and fire flow meeting the requirements of International Fire Code Appendix B shall be required.

Exceptions: Portable school classrooms, provided: 1) The aggregate area of clusters of portable classrooms does not exceed 5,000 square feet. 2) Cluster of portable classrooms shall be separated as required in Chapter 5. 3) Each portable classroom is equipped with a monitored, automatic fire alarm system interconnected to the main fire alarm control panel.

Section [F] 903.2.4 Group F.

An automatic sprinkler system shall be provided for all Group F occupancies regardless of floor area, fire barriers, or fire walls, including the manufacturing or storage of upholstered furniture and mattresses.

Section [F] 903.2.4.1 Woodworking Operations.

An automatic sprinkler system shall be provided throughout all occupancies that contain woodworking operations in excess of 2,500 square feet in area which generate finely divided combustible waste or use finely divided combustible materials.

Exceptions:

1. Where the scope of woodworking operations presents a fire hazard, an automatic sprinkler system may be required regardless of floor area.

2. Where existing woodworking operations are found to present a fire hazard and the fire hazard cannot be reduced or eliminated based on the scope of the operation, an automatic sprinkler system may be required regardless of floor area.

3. Where finely divided combustible waste or finely divided combustible materials are generated and the woodworking operation presents a fire hazard, an automatic sprinkler system may be required regardless of floor area.

Section [F] 903.2.5 Group H.

An automatic sprinkler system shall be provided for all Group H occupancies regardless of floor area, fire barriers, or fire walls. Where buildings or structures contain an H occupancy, they shall also be provided with an automatic sprinkler system. The design of the sprinkler system shall not be less than that required by this code for the occupancy hazard classifications in accordance with Table 903.2.5.2. Where the design area of the sprinkler system consists of a corridor protected by one row of sprinklers, the maximum number of sprinklers required to be calculated is 13.

[F] Table 903.2.5.2 Group H Sprinkler Design Criteria

Location

Occupancy Hazard Classification

Fabrication Areas

Ordinary Hazard Group 2

Service Corridors

Ordinary Hazard Group 2

Storage rooms without dispensing

Ordinary Hazard Group 2

Storage rooms with dispensing

Extra Hazard Group 2

Corridors

Ordinary Hazard Group 2

Section [F] 903.2.5.3 Pyroxylin Plastics.

An automatic sprinkler system shall be provided in buildings, or portions thereof, where cellulose nitrate film or pyroxylin plastics are manufactured, stored, or handled in quantities exceeding 100 pounds (45 kg).

Section [F] 903.2.6 Group I.

An automatic sprinkler system shall be provided throughout all buildings containing Group I occupancies regardless of floor area, fire barriers, or fire walls.

Section [F] 903.2.7 Group M.

An automatic sprinkler system shall be provided throughout all buildings containing Group M occupancies regardless of floor area, fire barriers, or fire walls, including Group M occupancies used for the display and sale of upholstered furniture.

Section [F] 903.2.7.1 High-Piled Storage.

An automatic sprinkler system shall be provided in accordance with the International Fire Code where storage of merchandise is in high piled or rack storage arrays. Where high piled storage is provided in other occupancies, regardless of floor area, an automatic sprinkler system shall be required.

Section [F] 903.2.8 Group R.

An automatic sprinkler system installed in accordance with Section 903.3 shall be provided throughout all buildings with a Group R occupancy regardless of floor area, fire barriers, or fire walls.

Section [F] 903.2.8.1 Group R-3.

An automatic sprinkler system installed in accordance with Section 903.3.1.3 may be permitted in Group R-3 occupancies.

Section [F] 903.2.8.2 Group R-4 Condition 1.

An automatic sprinkler system shall be installed in accordance with Section 903.3.

Section [F] 903.2.8.3 Group R-4 Condition 2.

An automatic sprinkler system shall be installed in accordance with Section 903.3. Attics shall be protected in accordance with 903.2.8.3.1 or 903.2.8.3.2.

Section [F] 903.2.8.3.1

Attics used for living purposes, storage or fuel-fired equipment. Attics used for living purposes, storage or fuel-fired equipment shall be protected throughout with an automatic sprinkler system installed in accordance with Section 903.3.

Section [F] 903.2.8.3.2

Attics not used for living purposes, storage or fuel-fired equipment. Attics not used for living purposes, storage or fuel-fired equipment shall be protected in accordance with one of the following:

1. Attics protected throughout by a heat detector system arranged to activate the building fire alarm system in accordance with Section 907.2.10.

2. Attics constructed of noncombustible materials.

3. Attics constructed of fire-retardant-treated wood framing complying with Section 2303.2.

4. The automatic sprinkler system shall be extended to provide protection throughout the attic space.

Section [F] 903.2.8.4 Care facilities.

An automatic sprinkler system installed in accordance with Section 903.3 shall be permitted in care facilities with five or fewer individuals in a single-family dwelling.

Section [F] 903.2.9 Group S-1.

An automatic sprinkler system shall be provided throughout all buildings containing Group S-1 occupancy where one of the following exists:

1. The fire area or total gross floor area is 5,000 square feet or more pursuant to Section [F]903.1.

2. A Group S-1 fire area is located more than three stories above grade plane.

3. A Group S-1 occupancy used for the storage of upholstered furniture or mattresses exceeds 2,500 square feet.

Section [F] 903.2.9.1 Repair Garages.

An automatic sprinkler system shall be provided throughout all buildings used as repair garages where:

1. The fire area or total gross floor area is 5,000 square feet or more pursuant to Section [F]903.1.

2. Buildings with a repair garage servicing vehicles parked in the basement.

3. Used for the repair or storage of vehicles including commercial trucks and buses.

4. A Group S-1 fire area used for the repair of commercial motor vehicles where the fire area is 5,000 square feet or more.

Section [F] 903.2.9.2 Bulk Storage of Tires.

An automatic sprinkler system shall be provided throughout all buildings where bulk storage of tires occurs regardless of gross floor area, fire barriers, or fire walls. The automatic sprinkler system shall be designed for the highest hazard.

Section [F] 903.2.10 Group S-2.

An automatic sprinkler system shall be provided throughout all buildings classified as enclosed parking garages in accordance with Section 406.4 or where located beneath other groups.

Exception: Enclosed parking garages located beneath R-3 occupancy as applicable in section 101.2.

Section [F] 903.2.10.1 Commercial Parking Garages.

An automatic sprinkler system shall be provided throughout all buildings used as commercial parking, including storage of commercial trucks and buses pursuant to Section [F] 903.1.

Section [F] 903.2.11.3 Buildings of Three Stories or 55 feet in Height or More is amended to read as follows:

Section [F] 903.2.11.3 Buildings of Three Stories or 35 feet in Height or More.

An automatic sprinkler system shall be installed throughout buildings that have one or more stories with an occupant load of thirty (30) or more located 35 feet or 35 feet or more above the lowest level of fire department vehicle access, measured to the finished floor.

Exceptions:

1. Open parking structures.

2. Occupancies in Group F-2 unless regulated elsewhere.

Section [F] 903.3.1.3 NFPA 13D Sprinkler Systems is amended to read as follows:

Section [F] 903.3.1.3 NFPA 13D Sprinkler Systems.

Where allowed, automatic sprinkler systems in one and two family dwellings may comply with NFPA 13D provided the fire sprinkler system has a separate tap to the water main, and is not part of the domestic water supply or plumbing to or within the dwelling.

Section [F] 903.3.5 Water Supplies is amended to read:

Section [F] 903.3.5 Water Supplies.

Water supplies for automatic sprinkler systems shall comply with this section:

1. The automatic sprinkler system water supply shall have a separate tap to the City Water Main, and shall not be used in conjunction with, or part of, or as a domestic water service. The potable water supply shall be protected against backflow in accordance with the Uniform Plumbing Code and Snohomish Municipal Code 15.10.

2. Where a dedicated fire main is provided, domestic water service or other potable water use connections shall be prohibited.

3. Where required fire flow demand exceeds the available water supply provided by the water purveyor, the applicant may be required to upgrade, extend, or construct the purveyors water mains to provide fire flow including the installation of additional hydrants or looping of water mains, except where regulated elsewhere. The water supply test used for design of fire protection systems shall be adjusted to account for seasonal and daily pressure fluctuations based on information from the water supply authority and as approved by the building/fire official.

4. Where automatic sprinkler systems are installed, the required fire flow demand may be reduced by fifty percent (50%) provided the available water supply can still provide the reduced fire flow demand.

5. Where the automatic sprinkler system, water supply shut off valves are installed or located below grade, a valve cover lid shall be provided and shall be accessible at all times. The valve cover lid shall be permanently marked with letters that read “Fire Sprinkler,” and be permanently marked with red paint.

Section [F] 903.3.5.1 Domestic Services is amended to read as follows:

Section [F] 903.3.5.1 Domestic Services.

Domestic water services shall not be used for the water supply for the automatic sprinkler system.

Section [F] 903.3.5.2 Residential Combination Services is amended to read as follows:

Section [F] 903.3.5.2 Residential Combination Services.

Where allowed, residential combination services that provide both residential domestic services and automatic sprinkler system supply shall be plumbed so that termination, shut-off, maintenance, or removal of the residential domestic water service shall not impair or prevent operation of the automatic sprinkler system. In any case, water supply for the automatic sprinkler system shall not supply or be capable of supplying residential domestic services, especially where the residential domestic water service has been interrupted by termination, shut-off, maintenance, or removal. Combination services shall be regulated as a required automatic sprinkler system and subject to the penalty section, including termination of occupancy until such time the system is brought into compliance.

Section [F] 903.3.7 Fire Department Connections (FDC) is hereby added to read as follows:

Section [F] 903.3.7 Fire Department Connections (FDC).

Fire department connections shall be a minimum distance of 50 feet from the building it serves. Where lot size may not allow the minimum distance to be met, an alternative location may be considered. The location of the FDC shall be approved by both the Building/Fire Official and the Fire District. Fire hose thread and fittings used in connection with or part of an automatic sprinkler system shall be as prescribed by the Fire District.

Section [F] 903.3.7.1 Locking Fire Department Connection (FDC) Caps.

Locking FDC caps are required on all fire department connections. The locking cap shall be of the type approved by Fire District #4.

Section [F] 903.3.7.2 Existing Fire Department Connections (FDC) Caps.

Where existing fire department connections are found to be unsecured, locking FDC caps shall be installed. Prior to installation of the locking FDC caps, the property owner shall have the FDC line flushed to ensure any or all obstructions are removed. The work shall be performed by a person, firm, or corporation licensed by the State of Washington to perform work on fire sprinkler systems. A written certification report indicating the FDC line is clear and operational shall be forwarded to the City.

Section [F] 907.1 Fire Alarm and Detection Systems Requirements, General is amended to read as follows:

Section [F] 907.1 General.

All occupancies hereinafter constructed, substantially damaged or improved, which exceed 3,000 square feet of gross floor area, and single family residences with bed and breakfast rooms regardless of floor area, shall be provided with a UL listed, monitored and approved automatic fire detection system. Where the occupancies listed under Section 907 require automatic fire detection systems/fire alarm systems more restrictive than 3,000 square feet, the most restrictive requirement shall govern. For the purposes of this subsection, the total gross floor area shall be based on the completed, attached building, regardless of any fire barriers or fire walls.

Where required under Section [F] 907 to install manual devices, those sections shall be amended to read both automatic and manual devices for the purposes of this section.

(Ord. 2319, 2016; Ord. 2341, 2017)

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