Loading...
(A) Wall height and length.
(1) Adobe masonry of unburned clay units shall be classified as natural (raw) adobe or stabilized adobe and shall not be used in any building more than one story in height. The unsupported height or length of every wall of these units shall be not more than ten times the thickness of such walls; provided, however, when the wall is laterally supported at the ceiling line by means of ceiling joists or rafters, the length may be increased to 24 times the thickness of such walls.
(2) Exterior walls shall in no case be less than 14 inches thick and interior adobe walls shall not be less than ten inches thick. Foundation (stem) walls which support masonry of unburned clay units shall extend to an elevation of not less than six inches above the adjacent ground at all points and shall be of the same thickness as the wall they support. Frame interior walls shall be of standard construction and anchored to the exterior walls by use of “gringo” blocks or other approved methods.
(3) Adobe shall not be used for foundation (stem) or basement walls. Footing shall be of a continuous concrete design. The footing width and depth shall be governed by the allowable bearing pressure of the soil and allowable concrete' stresses.
(B) Classes of adobe.
(1) The term
STABILIZED ADOBE UNIT(S) is defined as adobes made of soil to which certain admixtures, emulsified asphalt, or other approved material is added in the manufacturing process in order to limit the adobe's water absorption capacity to comply with the Uniform Building Standard.
(2) Natural (raw) or untreated adobes are adobes which do not meet the water absorption specifications. This shall hold even if some water absorption protective agent has been added.
(C) Material.
(1) Adobe is defined as clay masonry units made from a suitable mixture of soil, day and stabilizing agent. The soil used shall contain not more than ten-hundredths percent of soluble salts and shall contain not less than 25% and not more than 45% of material passing a No. 200 mesh sieve and 100% shall pass through a one-fourth-inch mesh sieve and be free from deleterious matter. The soil shall contain sufficient clay to bind the particles together and be mixed with clean potable water to the proper working consistency.
(2) Units shall be protected from moisture while curing, be sun-baked for at least one week and stacked for another two weeks before being laid in the wall. Weather conditions may require a longer curing period.
(D) Testing.
(1) All units shall be tested in accordance with Uniform Building Code Standard 24-14.
(a) Compressive strength. The units shall have an average compressive strength of 300 pounds per square inch. One sample out of five may have a compressive strength of not less than 200 pounds per square inch.
(b) Modulus of rupture. The unit shall average 50 pounds per square inch.
(c) Moisture content. The moisture content of each unit shall be not more than four percent by weight.
(d) Absorption. A dried four-inch cube cut from a sample of a stabilized adobe unit shall absorb not more than two and one-half percent moisture by weight. If the sample absorbs more than two and one-half percent moisture by weight, the material shall be classified as natural (raw) adobe.
(e) Shrinkage cracks. No unit shall contain more than three shrinkage cracks, and no shrinkage crack shall exceed three inches in length or one-eighth inch in width.
(2) Sample testing shall be made daily by the manufacturer. A minimum of monthly random tests shall be made for the manufacturer by an independent testing laboratory. Test reports shall be maintained a minimum of three years.
(E) Construction. At the time of laying, all units shall be clean and damp at the surface. All joints shall be solidly filled with mortar. Units may be laid with adobe mortar made of the same materials as the units or with Type M or S mortar. In all cases bond must be achieved between the mortar and the adobe units. No more than seven courses per day shall be laid when using adobe mortar. Units shall be laid in a running bond with a 50% lap. Use of natural (raw) adobes is prohibited within four inches above the finish floor grade.
(F) Plastering.
(1) Natural (raw) adobe shall have all exterior walls plastered on the outside with Portland cement plaster, minimum thickness three-fourths inch in accordance with Chapter 47, Uniform Building Code, current edition. Protective coatings other than plaster are allowed, provided such coating is equivalent to Portland cement plaster in protecting the untreated adobes against deterioration and/or loss of strength due to water. Plaster screens shall be used around the bottom row of adobe to prevent water wicking.
(2) Natural (raw) adobes may be left exposed on the exterior walls if the following protection or other approved methods are provided against any flow of water on, or upon those walls, other than falling rain:
(a) A cap or cornice of brick or concrete units, or equal, or parapet walls, laid to drain water onto the roof.
(b) Canals or scruppers, properly flashed, of sufficient length to drain water from the roof so that it will not fall against the wall.
(c) Window sills of brick or concrete units, or equal, sloped and with sufficient lip, to drain water so that it will not fall against the wall.
(G) Lintels. Members supporting unburned clay masonry units shall be reinforced concrete, masonry, steel or pressure treated heavy timber. The adobe units may overhang the lintel a maximum of two inches on each face. Heavy timber lintels shall be limited to eight-foot openings.
(H) Bond beams and anchorage. Bond beams shall be provided to support and anchor all roof construction. Bond beams utilizing adobe shall have continuous rows of joint reinforcing between the required member of courses to resist uplift forces. Ledger and partition bolts shall extend through exterior and interior adobe walls and the attaching member. It shall be required to provide plate washers on the exterior face of the adobe wall. Plate washers shall be a minimum of one-eighth inch thick by four inches by four inches in size or equivalent anchorage. Top wall plates and anchor bolts shall be designed to resist the uplift forces (minimum one-half inch in diameter and 20 inches embedment, 24 inches on center spacing) and provided with washers at least one-eighth inch by four inches by six inches in size embedded in the adobe. Oversize washers, minimum two inches in diameter, shall be used on the wood top plate.
(I) Stresses. Unburned clay masonry (adobe) units shall conform to the stresses set forth in Table I (§ 150-033).
(J) Joint control. Joint control shall be maintained as follows:
(1) Raw adobe: All joints shall be struck smooth or concave to allow stucco.
(2) Stabilized adobe: All style joints are permitted.
(K) Wood appendage. Wood appendage, including vigas, latillas and corbels, shall be permitted.
('80 Code, § 7-59) (Ord. 2021, passed 7-1-81) Penalty, see § 150-999
(A) Compressive strength standard. Burnt adobe units shall have an average ultimate compressive strength of not less than 600 pounds per square inch. One unit out of five may have a compressive strength of not less than 500 pounds per square inch. Tests in accordance with ASTM C-67 for an approved testing agency shall be applied to five sample units selected at random for each 5,000 units used.
(B) Construction. All units shall be laid in running bond with full head and bed joints and a 50% lap. Walls shall be supported on foundation (stems) to maintain a minimum of six inches above adjacent ground at all points. Burnt adobe units shall not be used in any building more than one story in height. The unsupported height of every wall shall not be more than 15 times the thickness of such walls except that when gable construction is used, an additional four feet is permitted to the peak of the gable. Walls shall in no case be less than eight inches in thickness.
(C) Sealing. The surface of exposed walls shall be protected from water absorption by either exterior plastering or a chemical water-repellent sealer compound.
(D) Bond beams and anchorage. Bond beams shall be provided in support and anchor all roof construction. Bond beams shall have a minimum of three continuous rows of joint reinforcing between the required number of courses to resist uplift forces. Top plate anchor bolts shall be designed to resist the uplift forces (minimum one-half inch diameter and 20 inches embedment, 24-inch-on-center spacing) and provided with washers at least one-eighth inch thick by four inches by four inches welded to bolt. Top plate washer shall be a minimum two inches in diameter.
(E) Stresses. Burnt adobe masonry shall conform to the stresses set forth in Table 1.
Table 1 | |||||||
Type M | Type S | Type M or Type S Mortar | Type N | ||||
Material | Compression1 | Compression1 | Shear or Tension in Flexure2,3 | Tension in Flexure4 | Compression | Shear or Tension in Flexure | |
Unburned clay (adobe) masonry | 30 | 30 | 8 | 4 | | | |
Burnt adobe | 85 | 85 | 8 | | | 60 | |
1 Allowable axial or flexural compressive stresses in pounds per square feet in gross cross-sectional area (except at notes). The allowable working stresses in bearing directly on the concentrated loads may be 50% greater than these values. 2 This value of tension is based on tension across a bed joint, i.e., vertically in the normal masonry work. 3 No tension allowed in stack bond across heat joints. 4 The value shown here are for tension in masonry in the direction of running bond, i.e., horizontally between supports. 5 Mortar in masonry shall not be considered to resist axial tension. | |||||||
('80 Code, § 7-60) (Ord. 2021, passed 7-1-81) Penalty, see § 150-999
(A) Electrical wiring shall be run in channels in the adobe. Channels shall be not less than three inches deep.
(B) Electrical wiring may be type UF cable or other type cable assemblies approved for direct burial. Conduit shall be used for all other type wiring conductors. Minimum wire size shall be No. 12 copper; a ground wire shall be provided for all runs except metal conduit.
(C) Channels shall be filled flush to the wall with adobe mud or approved mortar.
(D) Electrical J-boxes shall be recessed flush and grouted in place with mud or approved mortar.
('80 Code, § 7-61) (Ord. 2021, passed 7-1-81) Penalty, see § 150-999
Vertical plumbing line shall be recessed in channels of sufficient size and depth to prevent nail holes in lines. Channels shall be filled flush to the wall with adobe mud or approved mortar.
('80 Code, § 7-62) (Ord. 2021, passed 7-1-81) Penalty, see § 150-999
Mechanical Code
Certain documents, three copies of which are on file as public record in the office of the City Clerk of the City of Yuma, known as the 2018 International Mechanical Code, which was made public record by Resolution R2022-019, with certain amendments listed herein, is hereby adopted by reference and made a part hereof as if fully set out in this article.
(Ord. O98-26, passed 4-15-98; Ord. O2007-05, passed 1-17-07; O2015-037, passed 7-15-15; Ord. O2022-009, passed 5-4-22)
Charter reference:
Adoption of technical codes, see Charter Art. VII, § 6(g)(6)
Statutory reference:
Adoption of technical codes, see A.R.S. §§ 9-801 et seq.
The following amendments, additions and deletions are hereby made to the 2018 International Mechanical Code, as adopted by this subchapter. Paragraphs and section numbers refer to the 2018 International Mechanical Code numbering system. Code references not amended in this section shall be enforced as published in the reference document.
(A) Section [A] 101.1 Title. These regulations shall be known as the Mechanical Code of the City of Yuma, hereinafter referred to as 'this code'.
(B) Create a new sub-section, "[A] 101.2.2 Other Codes. Where a section references the International Fire Code, amend to read 'current adopted fire code'. Where a section references the International Energy Conservation Code, amend to read ‘current adopted energy conservation code.’ Where a section references accessibility provisions, it shall be taken to reference Arizona Revised Statutes, Title 41, Chapter 9, Article 8, Public Accommodations and Services. The Arizonians with Disabilities Act, R10-3-401 through R10-3-404, which includes - 28 CFR 35 and 28 CFR 36 and Americans with Disabilities Act Accessibility Guidelines for Buildings and Facilities (ADAAG)."
(C) Section [A] 103.1 General. Amend to read, "The Department of Building Safety is hereby created and the executive official in charge thereof shall be known as the 'building official'." Amend all sections of this code that reference the '
code official
' by replacing to read the 'building official.'
(D) Section [A] 106.4.4 Extensions. Delete last two sentences of this section.
(E) Section [A] 106.5.1 Work commencing before permit issuance. Any person who commences work on a mechanical system before obtaining the necessary permits shall be subject to the usual permit fee and an additional investigative fee. An investigative fee, in addition to the permit fee, shall be collected whether or not a permit is then or subsequently issued. The investigative fee shall be determined by the building official, based on the circumstances, nature and severity of the infraction. The minimum investigative fee shall be $50 and the maximum shall be an amount up to the same as the fee set forth in Table 1-A.
(F) Section [A] 106.5.2 Fee Schedule. Amend by adding Mechanical Permit Fee Table 1-A:
TABLE 1-A: MECHANICAL PERMIT FEES
Permit issuance and heaters
1. For the issuance of each mechanical permit $50.00
2. For issuing each supplemental permit for which the original permit has not expired, been canceled or finaled $7.00
Unit Fee Schedule
(Note: The following do not include permit-issuing fee.)
1. Furnaces
For the installation or relocation of each forced-air or gravity-type furnace or burner including ducts and vents attached to such appliance, up to and including 100,000 Btu/h (29.3 kW) $15.00
For the installation or relocation of each forced-air or gravity-type furnace or burner including ducts and vents attached to such appliance over 100,000 Btu/h (29.3 kW) $18.00
For the installation or relocation of each floor furnace, including vent $15.00
For the installation or relocation of each suspended heater, recessed wall heater or floor-mounted unit heater $15.00
2. Appliance Vents
For the installation, relocation or replacement of each appliance vent installed and not included in an appliance permit $7.00
3. Alterations or Additions
For the alteration of, or addition to, each heating appliance, refrigeration unit, cooling unit, absorption unit, or each heating, cooling, absorption or evaporative cooling system, including installation of controls regulated by the Mechanical Code $14.00
4. Boilers, Compressors and Absorption Systems
For the installation or relocation of each boiler or compressor to and including 3 horsepower (10.6 kW), or each absorption system to and including 100,000 Btu/h (29.3kW) $15.00
For the installation or relocation of each boiler or compressor over 3 horsepower (10.6 kW) to and including 15 horsepower (52.7 kW), or each absorption system over 100,000 Btu/h (29.3 kW) to and including 500,000 Btu/h (146.6 kW) $28.00
For the installation or relocation of each boiler or compressor over 15 horsepower (52.7 kW) to and including 30 horsepower (105.5 kW) or each or each absorption system over 500,000 Btu/h (146.6 kW) to and including 1,000,000 Btu/h (293.1 kW) $37.00
For the installation or relocation of each boiler or compressor over 30 horsepower (105.5 kW) to and including 50 horsepower (176 kW), or each absorption system over 1,000,000 Btu/h (293.1 kW) to and including 1,750,000 Btu/h (512.9 kW) $55.00
For the installation or relocation of each boiler or compressor over 50 horsepower (176 kW), or each absorption system over 1,750,000 Btu/h (512.9 kW) $93.00
5. Air Handlers
For each air-handling unit to and including 10,000 cubic feet per minute (cfm) (4719 L/s), including ducts attached thereto $11.00
Note: This fee does not apply to an air-handling unit which is a portion of a factory-assembled appliance, cooling unit, evaporative cooler or absorption unit for which a permit is required elsewhere in the Mechanical Code.
For each air-handling unit over 10,000 cfm (4719 L/s) $18.00
6. Evaporative Coolers
For each evaporative cooler other than portable type $11.00
7. Ventilation and Exhaust
For each ventilation fan connected to a single duct $11.00
8. Incinerators
For the installation or relocation of each domestic-type incinerator $18.00
For the installation or relocation of each commercial or industrial-type incinerator $15.00
9. Miscellaneous
For each appliance or piece of equipment regulated by the Mechanical Code but not classed in other appliance categories, or for which no fee is listed in the table $11.00
Other Inspections and Fees:
1. Inspections outside of normal business hours, $50.00 per hour*
(minimum charge two hours)
2. Reinspection fees assessed of $50.00 per hour*,
for work not ready for inspection.
3. Inspections for which no fee is specifically indicated, $50.00 per hour*
(minimum charge one-half hour)
4. Additional plan review required by changes, additions or revisions to plans $50.00 per hour*
(minimum charge one-half hour)
* Or the total hourly cost to the jurisdiction, whichever is the greater. This cost shall include supervision, overhead, equipment, hourly wages and fringe benefits of the employees involved.
(G) Section [A] 106.5.3 Fee Refunds. Add to end of section, "The building official shall authorize the refunding of fees as follows:
1. The full amount of any fee paid hereunder which was erroneously paid or collected.
2. Not more than 80 percent of the permit fee paid when no work has been done under a permit issued in accordance with this code.
3. Not more than 80 percent of the plan review fee paid when an application for a permit for which a plan review fee has been paid is withdrawn or canceled before any plan review effort has been expended.
The building official shall not authorize the refunding of any fee except upon written application filed by the original permittee not later than 180 days after the date of fee payment.”
(H) [A] 106.6 Emergency repairs. Where equipment replacements and repairs must be performed in an emergency situation, the permit application shall be submitted within the next working business day to the building official.
(I) Section [A] 108.4 Violation penalties. Any person who shall violate a provision of this code or shall fail to comply with any of the requirements thereof or who shall erect, install, alter, or repair mechanical work in violation of the approved construction documents or directive of the building official, or of a permit or certificate issued under the provision of this code, shall be subject to the penalty and fine described in this ordinance.
(J) Section [A] 108.5 Stop work orders. Any person who shall continue any work on the system after having been served with a stop work order, except such work as that person is directed to perform to remove a violation or unsafe condition, shall be subject to the penalty and fine described in this ordinance.
(K) Section [A] 109.2 Membership of board. The membership of the Building Advisory Board as prescribed in Section 150-008 of the Yuma City Code will be the Board of Appeals.
(L) Sections [A] 109.2.1 through [A] 109.7. Delete sections in their entirety.
(M) Section [BS] 301.16 Flood hazard. For structures located in flood hazard areas, mechanical systems, equipment and appliances shall be located at or above the elevation required in the adopted city floodplain ordinances for utilities and attendant equipment.
Exception: Mechanical systems, equipment and appliances are permitted to be below the elevation required by the adopted city floodplain ordinances for utilities and attendant equipment provided that they are designed and installed to prevent water from entering or accumulating within the components and to resist hydrostatic and hydrodynamic loads and stresses, including the effects of buoyancy, during the occurrence of flooding up to such elevation.
(N) Section 303.3 Prohibited locations. Amend Exception #2 to read, "Solid fuel-fired appliances, provided that the room is not a confined space and as long as outdoor combustion air is provided."
(O) Section 304.11 Guards. Add exception to section to read, "Where due to roof size or other constraints the building official may approve alternate means to achieve compliance."
(P) Section 306.5.1 Sloped roofs. Amend first sentence to read, "Where appliances, equipment, fans or other components that require service are installed on a roof having a slope of greater than 4 units vertical in 12 units horizontal (33-percent slope) or greater and having an edge more than 30 inches (762 mm) above grade at such edge, a level platform shall be provided on each side of the appliance or equipment to which access is required for service, repair, or maintenance."
(Q) Section 307.2.1 Condensate disposal. Amend first sentence to read, "Condensate from all cooling and evaporators shall be conveyed from the drain pan outlet to an approved sanitary sewer connection, or other approved method of condensate disposal designed by a registered design professional."
Add exceptions to section:
"Exceptions:
1. Condensate from cooling coils and evaporators up to and including (4) ton units may drain into an approved bottom disposal pit. The approved bottom disposal pit shall consist of a pit excavated in the earth not less than 24 inches (61 mm) in any dimension completely filled with coarse gravel. The drainpipe shall extend into the pit not less than 6 inches (15 mm) below grade and shall be securely anchored in place. The drain shall not be covered with sod or earth until it has been inspected.
2. Equipment provided with a factory, or other approved, condensate evaporation device."
(R) Section 1101.6 General. Add to end of section, "Wind socks shall be installed on all industrial facilities utilizing ammonia refrigerant."
(Ord. O98-26, passed 4-15-98; Ord. O2004-35, passed 6-16-04; Ord. O2007-05, passed 1-17-07; Ord. O2015-037, passed 7-15-15; Ord. O2022-009, passed 5-4-22)
Plumbing Code
Loading...