The URL can be used to link to this page

Home My WebLink About1989-09-26 - ORDINANCES - ROOF COVERINGS (2)NO. 89-21 AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF SANTA CLARITA, CALIFORNIA, AMENDING THE LOS ANGELES COUNTY CODE, TITLE 26, INCORPORATED BY REFERENCE AS THE SANTA CLARITA MUNICIPAL CODE, RELATING TO ROOF COVERINGS THE CITY COUNCIL OF THE CITY OF SANTA CLARITA FINDS AND DETERMINES AS FOLLOWS: Fires in residential structures with untreated wood roofs create a substantial risk of loss of life and property. The state law does not require a minimum standard of Class C rated roofs in all new residential construction. A minimum City building standard that Class C rated roofs be required in new residential construction in the City of Santa Clarita Fire Zone No. 3 would greatly reduce the risk of loss of life and property resulting from fires in residential structures with untreated wood roofs located in Fire Zone No. 3. It is in the public safety, welfare, and interest to require as a minimum standard Class C rated roof in new residential construction located in Fire Zone 3. A minimum City building standard that Class C rated roofs be required in new residential construction located in Fire Zone No. 3 is reasonably necessary because the hot, arid climate, along with warm, dry, Santa Ana winds, in the City of Santa Clarita, increase the risk of fire in all buildings, including residential structures with untreated wood roofs located in Fire Zone No. 3. THE CITY COUNCIL OF THE CITY OF SANTA CLARITA DOES ORDAIN AS FOLLOWS: SECTION 1. Section 3203(b) is amended to read as follows: (b) Definitions. For purposes of this chapter, certain terms are designated as follows: BASE SHEET is one layer of felt or combination sheet secured to the deck over which may be applied additional felts, a cap sheet, organic or inorganic fiber shingles, smooth coating or mineral aggregate. BUILT-UP ROOF COVERING is two or more layers of roofing consisting of a base sheet, felts and cap sheet, mineral aggregate, smooth coating or similar surfacing material. CAP SHEET is roofing made of organic or inorganic fibers, saturated and coated on both sides with a bituminous compound, surfaced with mineral granules, mica, talc, ilmenite, inorganic fibers or similar materials. CEMENTING is solidly mopped application of asphalt, cold liquid asphalt compound, coal tar pitch or other approved cementing material. COMBINATION SHEET is a glass fiber felt integrally attached to kraft paper. CORROSION -RESISTANT is any nonferrous metal or any metal having an unbroken surfacing of nonferrous metal, or steel with not less than 10 percent chromium or with not less than 0.20 percent copper. FELT is matted organic or inorganic fibers, saturated with bituminous compound. FELT, NON -BITUMINOUS SATURATED, is matted asbestos fibers with binder for use with wood shingle and wood shake assemblies as specified in Section 3203(8). GLASS FIBER FELT is a glass fiber sheet coated on both sides with bituminous compound. INTERLAYMENT is a layer of felt or non -bituminous saturated asbestos felt not less than 18 inches wide, shingled between each course of roof covering. INTERLOCKING ROOFING TILES are individual units, typically of clay or concrete, possessing matching ribbed or interlocking vertical side joints that restrict lateral movement and water penetration. METAL ROOFING is metal shingles or sheets for application on solid roof surfaces, and corrugated or otherwise shaped metal sheets or sections for application on solid roof surfaces or roof frameworks. NON-NAILABLE DECK is any deck which is incapable of retaining an approved fastener. PREPARED ROOFING is any manufactured or processed roofing material, other than untreated wood shingles and shakes, as distinguished from built-up coverings. ROOFING SQUARE is 100 square feet of roofing surface. SPOT CEMENTING is discontinuous application of asphalt, cold liquid asphalt compound, coal tar pitch or other approved cementing material. uNDERLAYMENT is one or more layers of felt or non - bituminous saturated asbestos felt over which finish roofing is applied. WOOD SHARES are tapered or non-tapered pieces of Class C or better, approved durable wood of random widths ranging from 4 inches to 14 inches and of the following four types: 1. Hand -split and re -sawn; tapered with one sawed and one split face; semi -split; tapered with partially sawn and split faces both sides, 15 inches, 18 inches or 24 inches in length. 2. Taper -split; tapered with both split faces, 24 inches in length. 3. Straight -split; non-tapered with both split faces, either 18 inches or 24 inches in length. 4. Taper -sawn --sawn both sides --edges sawn or split. Lengths 24 inches and longer. PRESERVATIVE -TREATED WOOD SHARES are taper -sawn pieces of Class C or better, southern pine wood treated in accordance with U.B.C. Standard No. 25- 12 of random widths ranging from 4 inches to 8 inches and lengths of 18 inches. WOOD SHINGLES are tapered or non-tapered pieces of Class C or better, approved durable wood, sawed both sides of random widths, ranging from 3 inches to 14 inches, and in lengths of 16 inches, 18 inches or 24 inches. SECTION 2. Section 3203(f) is amended to read as follows: (f) Ordinary Roof Covering. An ordinary roof covering shall be any one of the following roofings: EXCEPTION: Group M, Division 1, 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(e). 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 in 12 inches applied as specified in Section 3203(d)2, consisting of not less than the following: 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. 5. Wood shingle and/or wood shakes (treated) shall be Class C or better. SECTION 3. All changes and modifications of the Building Code, as amended by this Ordinance, are reasonable and necessary because of local climatic, geographical, or topographical conditions. This finding is made pursuant to Section 17958.5 and 17958.7 of the State Health and Safety Code. SECTION 4. If any section, subsection, sentence, phrase, clause or work of this Ordinance, is for any reason held to be r-* invalid by a court of competent jurisdiction, such decision shall not affect the validity of the remaining portions of this Ordinance. The City Council hereby declares that it would have passed and adopted this Ordinance and each and all provisions hereof, irrespective of the fact that any one or more of the provisions may be declared invalid. SECTION S. The City Clerk shall certify to the passage of the Ordinance and shall cause it to be published according to legal requirements. PASSED AND APPROVED this 26th 19 89 STATE OF CALIFORNIA ) COUNTY OF LOS ANGELES) ss. CITY OF SANTA CLARITA da of September n , MAYOR I, George Caravalho , City Clerk of the City of Santa Clarita, do hereby certify that the foregoing Ordinance No. 89-21 was regularly introduced and placed upon its first reading at a regular meeting of the City Council on the 12th day of September , 19 89 . That thereafter, said Ordinance was duly adopted and passed at a regular meeting of the City Council on the 26th day of September _, 19 89 by the following vote, to wit: AYES: NOES: ABSENT: COUNCILMEMBERS: Boyer, Darcy, Koontz, Heidt COUNCILMEMBERS: None COUNCILMEMBERS: McKeon