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HomeMy WebLinkAboutCC ORD 1982-1787 AMENDING 1979 EDITION OF THE UNIFORM BUILDING CODE & SECTION 15.08.060 RELATING TO FIRE RETANDANT ROOF MATERIALSORDINANCE NO. 1787 AN ORDINANCE OF THE CITY OF NATIONAL CITY, CALIFORNIA AMENDING THE 1979 EDITION OF THE UNIFORM BUILDING CODE AND SECTION 15.08.060 OF THE NATIONAL CITY MUNICIPAL CODE RELATING TO FIRE -RETARDANT ROOF MATERIALS SECTION 1. Section 104(b) of the Uniform Building Code is hereby amended to read as follows: (b) Additions, Alterations or Repairs. Additions, alterations or repairs may be made to any building or structure without requiring the existing building or structure to comply with all the requirements of this Code provided the addition, alteration or repair conforms to that required for a new building or structure. Additions, alterations or repairs shall not cause an existing building or structure to become unsafe or overloaded. Any building so altered, which involves a change in use or occupancy, shall not exceed the height, number of stories or area permitted for new buildings. Any building plus new additions shall not exceed the height, number of stories and area specified for new buildings. Alterations or repairs to an existing building or structure which are non-structural and do not adversely affect any structural member or any part of the building or structure having required fire resistance may be made with the same materials of which the building or structure is constructed. EXCEPTION 1. The installation or replacement of glass shall be as required for new installations. EXCEPTION 2. The installation of wood shingle or shake roofing material for reroofing or repair shall be as required for new installations. SECTION 2. Section 1704 of the Uniform Building Code is hereby amended as follows: Section 1704. New Roofs. New roof coverings shall be fire -retardant as specified in Section 3204(e) except in Types III, IV and V buildings, where it may be as follows: 1 Ordinary roof coverings may be used on buildings of Group R, Division 3, detached with a minimum of six feet from roof edge to roof edge or Group M Occupancies. Skylights shall be constructed as required in Chapter 34. Penthouses shall be constructed as required in Chapter 36. For use of plastics in roofs, see Chapter 52. For attics: Access and Area, see Section 3205. For Roof Drainage, see Section 3207. SECTION 3. Section 3203(d) G and H of the Uniform Building Code is hereby amended to read as follows: G. Wood Shingles. Shingles shall be applied to roofs with solid sheathing, except that spaced sheathing will be allowed for reroofing of existing structures. Shingles shall be laid with a side lap of not less than 1-1/2 inches between joints in adjacent courses, and not in direct alignment in alternate courses. Spacing between shingles shall be not less than 1/4 inch nor more than 3/8 inch. Each shingle shall be fastened with two nails only, positioned approximately 3/4 inch from each edge and approximately 1 inch above the exposure line. Starter course at the eaves shall be doubled. Weather exposures shall not exceed those set forth in Table No.32-A. Hip and ridge weather exposures shall not exceed those permitted for the field of the roof. H. Wood Shakes. Shakes shall be applied to roofs with solid sheathing, except that spaced sheathing will be allowed for reroofing of existing structures. In wind -driven -snow areas sheathing shall be solid and the shakes shall be applied over an underlayment of not less than Type 15 felt. Shakes shall be laid with a side lap of not less than 1-1/2 inches between joints in adjacent courses. Spacing between shakes be not less than 3/8 inch nor more than 5/8 inch. 2 Shakes shall be fastened to the sheathing with two nails only, positioned approximately 1 inch from each edge and approximately 2 inches above the exposure line. The starter course at the eaves shall be doubled. The bottom or first layer may be either shakes or shingles. 15 inch or 18 inch shakes, may be used for the final course at the ridge. Shakes shall be laid with not less than 18 inch wide strips of not less than Type 30 felt shingled between each course in such a manner that no felt is exposed to the weather below the shake butts. Weather exposures shall not exceed those set forth in Table No. 32-A. Hip and ridge weather exposures shall not exceed those permitted for the field of the roof. SECTION 4. Section 3203(f) of the Uniform Building Code is hereby amended to read as follows: (f) Ordinary Roof Covering. An ordinary roof covering shall be any one of the following roofings: EXCEPTION: Unless otherwise required because of location as specified in Parts IV and V of this code,Group M, Division I roof coverings shall consist of not less than one layer of 55-pound smooth -surfaced organic cap sheet, or built-up roofing consisting of two layers of Type 15 organic fiber felt and one layer of surfacing material as specified in Section 3203(f) 3. 1. Any roof covering listed in Section 3203(3). 2. Any built-up roofing assembly not less than Class C roofing. 3. Any mineral aggregate surface built-up roof for application to roofs having a slope of not more than 3 inches to 12 inches applied as specified in Section 3203(d)2, consisting of not less than the following: 3 Base Sheet and Plies Three layers of Type 15 organic or inorganic fiber felt, and Surfacing Material 300 pounds per roofing square of gravel or other approved surfacing material, or 250 pounds per roofing square of crushed slag in 50 pounds of asphalt, or 60 pounds of pitch. 4. Any prepared roofing not less than Class C roofing or pressure treated wood shakes/shingles not less than Class C rating. SECTION 5. Section 3209 of the appendix Chapter 32 of the Uniform Building Code is hereby amended to read as follows: applicable provisions of Chapter 32 of this code as amended by the City of National City. SECTION 6. Section 15.08.060 of the National City Municipal Code is hereby amended to read as follows: 15.08.060 Section 301(a) amended --Permits Required. Section 301(a) of the Code adopted by the ordinance codified herein is amended to read as follows: Section 301(a). PERMITS REQUIRED. No person, firm or corporation shall erect, construct, enlarge, alter, repair, move, improve, remove, convert, or demolish any building or structure in the City of National City, or cause the same to be done, without first obtaining a separate building permit for each such building or structure from the Superintendent of Building and Safety. EXCEPTIONS: 1. One-story detached accessory buildings used as tool and storage sheds, play houses and similar uses, provided the projected roof area does not exceed 100 square feet. 2. Patio covers up to 100 square feet in area and at least six feet (6') from any other buildings. 3. Fences and free-standing walls not over six feet (6') in height located in residential zones. 4 4. Oil derricks. 5. Cases, counters and partitions not over five feet (5') high. 6. Retaining walls and planter boxes which are not over three feet (3') in height measured from the top of the footing to the top of the wall unless supporting a surcharge or impounding flammable liquids. 7. Temporary motion picture,television and theater stage sets and scenery. 8. Window awnings supported by an exterior wall of Group R, Division 3, and Group M occupancies when projecting not more than 54 inches. 9. Television and radio towers supported on roofs. 10. Standard electroliers not over thirty-five feet (35') in height above finish grade. 11. Prefabricated swimming pools accessory to a Group R., Division 3 occupancy in which the pool walls are entirely above the adjacent grade and if the capacity does not exceed 5,000 gallons. 12. Repairs which involve only the replacement of component parts of existing work with similar materials for the purpose of maintenance, and which do not aggregate over $500.00 in valuation in any twelve (12) month period, and which do not affect any electrical or mechanical installations. Repairs exempt from permit requirements shall not include any addition, change, or modification in construction, exit requirements, or permanent fixtures or equipment. Specifically excepted from permit requirements without limit to valuation are the following: I. Painting and decorating II. Installation of floor covering III. Cabinet work IV. Outside paving 5 Unless otherwise exempted by this code, separate plumbing,electrical and mechanical permits will be required for the above exempted items. Exemption from the permit requirements of this code shall not be deemed to grant authorization for any work to be done in any manner in violation of the provisions of this code or any other laws or ordinances of this jurisdiction. PASSED AND ADOPTED this A day of November, 1982. ATTEST: _ :)/1. CITY CLE'K 6 Passed and adopted by the Council of the City of National City, California, on November 16, 1982 by the following vote, to -wit: Ayes: Councilmen Nays: Councilmen Absent: Councilmen Abstain: Councilmen AUTHENTICATED BY: Camacho, Dalla, Van Deventer? Waters, Morgan None None None KILE MORGAN By: Mayor of the City of National City, California City Clerk of the City of Nation . City, California Deputy I HEREBY CERTIFY that the foregoing ordinance was not finally adopted until seven calendar days had elapsed between the days of its introduction and the days of its final passage, to wit, on and on November 16, 1982 October 262 1982 I FURTHER CERTIFY THAT said ordinance was read in full prior to its final passage or that the reading of said ordinance in full was dispensed with by a vote of not less than a majority of the members elected to the Council and that there was available for the consideration of each mem- ber of the Council and the public prior to the day of its passage a written or printed copy of said ordinance. I FURTHER CERTIFY that the above and foregoing is a full, true and cor- rect copy of ORDINANCE NO. 1787 of the City of National City, passed and adopted by the Council of said City on (Seal) November 162 1982 By: City Clerk of the City of National City, California Deputy