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HomeMy WebLinkAboutOrdinance - 6253-1971 - Amending Chapter 5, Code Of Ordinances, Section 5-1 - 12/09/1971. I I = ORDINANCE NO. 6253 --------- AN ORDINANCE AMENDING CHAPTER 5 OF THE CODE OF ORDINANCE , CITY OF LUBBOCK, TEXAS, (BEING THE BUILDING CODE) BY PROVIDING F THE ADOPTION OF THE 1970 EDITION OF THE UNIFORM BUILDING CODE, VOLUME I; AMENDING SECTION 5-2 THEREOF PROVIDING FOR AMENDMENT TO SUCH 1970 EDITION; PROVIDING FOR PUBLICATION AND PROVIDING A SAVINGS CLAUSE. WHEREAS, the City Council of the City of Lubbock has found that the 1 present Building Code of the City of Lubbock has become obsolete and inadequate; II d 1 I an , WHEREAS, the City Council has received the recommendation of the Building Code Study Committee that the 1970 Edition of the Uniform Building Cod Volume I, with amendments as shown herein, be adopted; NOW THEREFORE: i' Ii BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF LUBBOCK: l t I SECTION 1. THAT Section 5-1 of Chapter 5 of the Code of Ordinances, City of Lubbock, Texas, BE and is hereby amended to read as follows: I "Sec. 5-1. Uniform Building Code, 197 0 edition -Adopted. The 1970 edition of the Uniform Building Code, Volume 1, as copyrighted in 1970 by the Interational Conference of Building Officials, Pasadena, California, as hereinafter amended is specifically adopted as the Building Code of the City of Lubbock, Texas, and a copy is attached hereto and incorporated herein by reference as though set out completely in detail. A copy of said Uniform Building Code shall be filed with the City Secretary and a copy maintained in the office of the Building Inspector of the City of Lubbock, Texas, all such copies to be open to public inspection during business hours of the offices where they are maintained, with the following amendments thereto. Whenever reference is made in this chapter to •'The Uniform Building Code, 1964 Edition" or to the "Uniform Building Code" such reference shall hereafter be to the 1970 edition of the Uniform Building Code, Volume I. " SECTION 2. THAT the amendments to the Uniform Building Code, 1964 1 Edition, as shown in Section 5-2 of Chapter 5 of the Code of Ordinances, City of Lubbock, Texas shall remain in effect and apply to similar sections and para- graphs of the Uniform Building Code, 1970 Edition, unless expressly repealed or amended hereby or in some subsequent ordinance. ------------- ~- .•- II ---I : -SECTION 3. THAT Section 5-2 of Chapter 5 of the Code of Ordinances, 1 City of Lubbock, Texas, which amends the Uniform Building Code, 1970 E~ition, BE and is hereby amended by making the following amendments and repeal\of present amendments, intending hereby to leave the existing amendments not changed in full force and effect: Section 303 of Chapter 3 of the Uniform Building Code, 1970 Edition shall hereafter read as follows: "Sec. 303(a). Building Permit Fees. Any person desiring a building permit shall, at the time of filing an application ther,efore, as provided in Section 301 of this Code, pay to the Building Inspector a fee as required in this Section. Schedule of Building permit fees -New buildings, additions and other permits minimum $5. 00; all types of buildings, per square foot of floor space $0. 015 (6ne and one half cents per square foot); gasoline and other volatile or inflammable liquid storage plants $10. 00; service station storage tanks $5. 00; and parking lots $5. 00. Alterations. For alterations of old buildings the fee for permits shall be one-tenth of one percent of the value of such alteration. Minimum fee $5. 00. The City, County, State, Independent School District, or the United States of America shall be exempt from the paying of any fee for any building. Where work for which a permit is required by this Code is started or proceded with prior to obtaining said permit, the fees above specified shall be doubled, but the payment of such double fee shall not relieve any persons from fully complying with the requirements of this Code in the execution of the work nor from any other penalties prescribed herein. There shall be a charge of $2. 50 for each re-inspection. The re-inspection fee must be paid at City Hall before such inspec- tions will be made. (b) Plan-checking Fees. When the valuation of the proposed construction exceeds $1, 000. 00 and a plan is required to be submitted by Subsection (c) of Section 301, a plan-checking fee shall be paid to the Building Official at the time of submitting plans and specifications for checking. Said plan-checking fee, if required, shall be equal to one-half of the building permit fee as set forth above. -2- ____ __...._ ______________________ ' , I _, Ii ! l I (c) . The Building Inspector shall keep a permanent, accurate account of all fees and other monies collected and received under this Code and give the names of the persons upon whose account the same were paid, the date and amount thereof, together with the location of the building or premises to which they relate. Table No. 5-B of the Uniform Building Code, 1970 Edition is hereby amended so that the required separation between H and I occupancies and J occupancies shall be 11N 11 • Table No. 5-D of the Uniform Building Code, 1970 Edition, shall read as printed in such Uniform Building Code, 1970 Edition and the amendment to Table No. 5-D of the 1964 Edition BE and is herepy repealed. Section 1305 of the Uniform Building Code, 1970 Edition is hereby amended by amending the last sentence of the third paragraph of sub-section (a) thereof to read as follows: 'The window area in bathrooms, water closet compartments, and other similar rooms shall not be less than three square feet(3 sq. ft.) unless a mechanical ventilation system is provided which is capable of producing a change of air every five minutes (5) and is connected directly to the outside of it terminated in a properly ventilated attic space with the point of discharge being at least two inches (2'') above the ceiling joists and at least twenty inches (20 11) from flammable material in the direction of air flow from such vent and also at least twenty inches (20 11) below flammable material. r Section 1305 of the Uniform Building Code, 1970 Edition, is amended by adding thereto a new sub-section (c) which shall read as follows: '(c). Ventilation of cooking facilities. All exhausting systems over any cooking facilities shall not terminate in an attic or any confined space, but shall continue through the roof to the outside atmosphere. ' Section 1405 of the Uniform Building Code, 1970 Edition, is amended by amending the last sentence of the third paragraph of sub-section (a) thereof to read as follows: 'The window area in bathrooms, water closet compartments, and other similar rooms shall be not less than three square feet (3 s'q. ft.) unless a mechanical ventilation system is provided which is capable of producing a change of air every five minutes (5) and is connected directly to the outisde or is terminated in a properly -3- \ ====91========================,=================:::::ia'=== I. I .- . ventilated attic space with the point of discharge being at least , two inches (2") above the ceiling joists and at least twenty inches , (2011 ) from flammable material in the direction of air flow from 'such vent and also at least twenty inches (2011) below flammable material. 1 Section 1405 of the Uniform Building Code, 1970 Edition, is amende.d by adding thereto a new sub-section (c) which shall read as follows: '(c). Ventilation of cooking¼ailities.All exhausting systems over ~ny cooking facilities shall not terminate in an attic or any con- fined space. but shall continue through the roof to the outside I atmosphere. ' Section 1504 of the Uniform Building Code, 197 0 Edition, is amended to hereafter read as follows: 'Sec, 1504. Private garages which are constructed in conjuncti~n w:ith any Group Hor I Occupancy under no circumstances shall a private garage have any opening directly into a room used for sleeping purposes. ' Section 1709 of the Uniform Building Code, 1970 Edition, is amended. by adding a new paragraph to sub-section (b) thereof which shall read as follows: 'Exceptions. In row dwellings or town houses; where no side yaro. is required, two hour fire rated walls shall separate the dwelling, units which are on the property line. The fire separation wall shall penetrate and continue through the roof deck. ' Section 2205 which was added as an amendment to the Uniform Building Code, 1964 'Edition, BE and is hereby repealed. Section 2314 of the Uniform Building Code, 1970 Edition, is amended by changing the Seismic Risk Map, on page 122, to pla~e Lubbock, Texas within a 110" (zero) Zone. Sec.tion 2403 of the Uniform Building Code, 1970 Edition, is am~nded by adding to paragraph No. 2 of sub-section (r) thereof the ifollowing: 'Other color admixtures may be used subject to the approval of the Building Official. -4- = -----~-------·---------------------- I ~ ~====#=====.,..,.======================================! I, Ii . I Section 2419 of the Uniform Building Code, 1970 Edition, is amended by changing sub-section B of sub-section 2 of sub- section (c) thereof, to read as follows: 'B. Used or salvage brick may be used subject to the approval of the Building Official. 1 Section 2501 of the Uniform Building Code, 1970 Edition, is amended by changing the last sentence in the second paragraph of sub-section (e) thereof, to read as follows: 'Lumber set forth in group IV of Table 25-F may be used in non-structural areas. 1 The amendment to Section 2504 of the Uniform Building Code, 1964 Edition, BE and is hereby repealed for the reason that such provision is covered in another Section of the 1970 Edition of this Code. Section 2517 of the Uniform Building Code, 1970 Edition, is amended by amending sub-section (c) thereof by adding a new sub-section 8 to read as follows: 18. The following requirements shall apply to type V construction only: Preconstruction soil treatment is required and will be applied as approved by the standards of the National Pest Control Association in respect to preconstruction soil treatment for protection against termites as follows: REFERENCE STANDARDS FOR PRECONSTRUCTION SOIL TREATMENT FOR PROTECTION AGAINST SUBTERRANEAN TE RM ITS•~ ;~Approved by National Pest Control Association, Inc. June, 1965 Chemicals used as a soil treatment to establish a barrier which is lethal or repellent to subterranean termites. The toxicant must be applied with such thoroughness and uniformity that it provides a barrier in all routes of termite entry. Precautions to be observed in &ai>.dllng concentrated chemical formulations and in the application of dlluted materials are given in the !"'Approved Reference Proce- dures for Subterranean Termit Control" of the National Pest Con- trol Association. Applications according to the following reference concentrations and reference application rates will achieve a pro- longed period of protection that is customarily guaranteed by pest control firms. -5- I =:~l,;==I --=--==--==·--=-==--=---=-==-=---·=· =======~ I Effective soil treatment requires the dispersion in the soil of a required amount of toxicant. Two interrelated factors are: the amount of chemical and a means of dispersing it in the soil. These factors are controlled by the concentration of the chemical and the rate and uniformity of application. A balance must be maintained between the concentration and volume applied. Neither should .be changed without appropriate adjustment of the other. Four termite toxicants are recognized as the most effective and long lasting of those tested to date. These four toxicants may b1e regarded as being equal in effectiveness and longevity when applied at comparable dosages at their respective recommended concentra'." tions. It is recommended that any of the four be applied as an emulsion in water. The toxicants and recommended reference concentrations for each are: Aldrin (actual Chlordan (technical) Dieldrin (actual Heptachlor (actual) 0. 5% by weight 1. 0% by weight 0. 5% by weight 0. 5% by weight Combinations of these toxicants are acceptable as long as they are proportioned to provide the equivalent of the full reference concen- tration. For example, one half of the reference concentration of' one toxicant could be combined with one half of the reference con- centration of another to provide a full reference concentration. Reference application rates for soil toxicants are as follows: For slab-on ground construction (a) one gallon per 10 square feet as an overall treatment under the slab and under attached porches. (b) four gallons per 10 linear feet to critical areas under the slab, such as along the inside of foundation walls and both sides of interior partition foundation walls, or around utility services or other features that will penetrate the slab. (c) four gallons per 10 linear feet along the outside of the founda- tions. (d) two gallons per 10 linear feet in the voids of all unit masonry foundation walls or piers. For basement construction -6-~ ____ _.._ _______ , _______________ ____.......,,, I! 1. ! I I (a) one gallon per 10 square feet as an overall treatment under the basement slab. (b) four gallons per 10 linear feet to critical areas within the base- ment area such as abng the inside of foundations walls, along both sides of partition foundation walls, around piers, and around the entrance of any utility service or other feature that will penetrate the basement slab. (c) four gallons per 10 linear feet along the outside of foundation walls where the foundation is of poured concrete or where the foot;- ing for masonry foundations is 30 inches or less below grade level~ including that part that will be under platforms or porches. Eight gallons per 10 linear feet where the footing for masonry foundations is more than 30 inches below grade level. (d) two gallons per 10 linear feet in the voids of all unit masonry foundation walls or piers. In some cases soil will not accept liquids at the reference rates of application. When the condition exists, a lesser volume of carrier, with an equivalently greater concen- tration of toxicant, may be used. For example, 5 gallons j . of 2o/o chlordane. The actual amount of the insecticide · per linear or square foot of soil should not be reduced and it must be properly distributed to provide an adequate barrier of treated soil. Section 2518 of the Uniform Building Code, 1970 Edition, is · amended by amending sub-section (a) thereof to read as follows: '(a) General. In one and two story buildings housing groups H, I and J Occupancies, where engineering design is not provided, where the floor live load does not exceed 50 pounds per square feet, and when the roof live load does not exceed 20 pounds per square feet, span tables for joists and rafters as published by the National Forest Products Association may be used to determine framing requirements. The allowable span of horizontal load bearing members shall be taken as the clear horizontal distance between supports. ' Section 2518 of the Uniform Building Code, 1970 Edition, is amended by deleting the second paragraph from sub-section 2 of sub-section (f) thereof, The amendments to Tables 25-Q, 25-R, 25-S, 25-T and 25-U of the Uniform Building Code, 1964 Edition, BE and are hereby -7- . ·: ' ! ' ' repealed for the reason that the subjects of such tables are covered in re-numbered tables in the 1970 Edition of this Code. Tables 25-U, 25-V, 25-W, 25-W-SL-30 and 25-W-SL-40 of the Uniform Building Code, 1970 Edition, are amended by deleting the column of such tables entitled "Group IV" and the footnote relating to such column. It being the intention of this deletion to prohibit the use of Group IV lumber in the construction referred· to in such tables. Section 2605 of the Uniform Building Code, 1970 Edition, is amended by amending sub-section (e) thereof to read as follows: '(e) Strength Tests of Concrete: On concrete work the Building Official may require tests of the concrete and other materials from time to time to determine whether such materials or methods of use are such as to produce concrete of the quality specified and used in accordance with the design of the building or structure. The tests shall be made, when ordered by the Building Official, by the owner or his authorized representative, and no responsi- bility for the expense of these tests shall attach to the Building Department. All tests shall be made by an approved agency, and copies of the results shall be kept on file in the office of the Building Official for a period of not less than two years after the acceptance of the structure. Specimens for concrete cylinder tests shall be taken at the place where the concrete is being de- posited and shall be taken and cured in accordance with the require- ments set forth in U. B. C. Standard No. 26-13 and tested in accor- dance with the requirements set forth in U. B. C. Standard 26-13. Samples from which compression test specimens are molded shall be secured in accordance with U. B. C. Standard No. 26-13. Speci- mens made to check the adequacy of the proportions for strength of concrete or as a basis for acceptance of concrete shall be made and laboratory-cured in accordance with U. B. C. Standard 26-13. Additional test specimens cured entirely under field conditions may be required by the Building Official to check the adequacy of curing and protection of the concrete. Strength tests shall be made in ac- cordance with U. B. C. Standard No. 26-13. Section 2606 of the Uniform Building Code, 197·0 Edition, is amended by amending sub-section (b) thereof by adding thereto a new paragraph to read as follows: 'Admixtures: 1. Air entraining and chemical admixtures and calcuim chloride may be added to concrete mixes if they have no deleterious effect. -8- ·---------------------~ .- I! I ! I ' 2. Admixtures shall be charged into the mixter as a solution and shall be dispensed by anautomatic dispenser. Po'wdered admixtures shall be weighed or measured by volume 13,s recommended by the manufacture. The accuracy of rileasure- ment of any admixture shall be within three percent (8%). ' Section 2606 of the Uniform Building Code, 1970 Edition, is amended by amending sub-section (c).thereof by adding thereto a new paragraph to read as follows: 'Aluminum pipe shall not be used for pumping and conveying concrete.' Section 2607 of the Uniform Building Code, 1970 Edition, is amended by amending sub-section (b) thereof by adding thereto a new paragraph to read as follows: 'When reshoring is permitted or required, the operations shall be approved by· the Building Official. ' Section 2607 of the Uniform Building Code, 1970 Edition, is amended by amending sub-section (c) thereof by adding thereto a new paragraph to read as follows: 'No aluminum piping or conduit be embedded in concrete. 1 Section 2629 of the Uniform Building Code, 1970 Edition, is amended by adding thereto a new paragraph to read as follows: 'Ducts Under Slab. Metal ducts, metal fittings, approved laminated or other fiber ducts shall be encased in not less than two inches (2") of concrete and with a minimum of two and one-half inches (2½ ") of concrete above such duct or fittings. Asbestor-cememt ducts, concrete ducts, clay or ceramic ducts shall be installed in the fill below the slab with not less than two and one-half inches (2½"} of concrete above the ducts. All joints shall be made substantially water and vapor tight. 1 The amendment to Table 28-A of the Uniform Building Code, 1964 Edition is hereby repealed for the reason that the subject of such table is covered in a re-numbered table in the 1970 Edition of this Code. Section 2903 of the Uniform Building Code, 1970 Edition, is amended by amending sub-section (a} thereof by adding a new paragraph thereto to read as follows= -9- . . II - ,_ ~ I I ' 'Exception: Design criteria for foundations and footings in one and two-story buildings housing groups H, I and J Occupancies, type V construction, where engineering design is not provided shall be as set forth in Tables 29-A and 29-B. ' Table 29-A of the Uniform Building Code, 1970 Edition is amended to read as follows: TABLE 29-A MINIMUM FOUNDATION REQUIREMENTS FOR TYPE V BUILDINGS , ' Number of Thickness Width of Thickness Depth of Re-enforced Stories pf Founda-Footing of Foot-Below Nat-Steel Uon Wall in Inches irig in ural sur- n Inches Inches face ' Con-Unit No. of Sizfi;!s :in crete Mas Bars Inq~~s. 'i \ onry 1 6 8 12 8 16 3 lf:2 2 6 8 14 10 18 3 1/\2: , I 3 8 12 16 12 24 3 ,5/!8, , ' NOTE: Increase Footing two inches in thickness and width for brick veneer. -10- ' I \:' I ;, ' ,' • i • ! ' =====41=1 ===================-======================•- A new Table 29-J¼ · is hereby added to the Uniform Building Code, 1970 Edition, to read as follows: TABLE 29-B' PIER 8. BEAM ~--J lf-.l" BAR.I I A ONE STORY FRAME WOOD SIDING A. I" B. 12" C. 18" TWO STORY FRAME WOOD SIDING A. lo"s:u"c: 18" ONE STORY FRAME BRlCK VENEER A. 10"1:i.-.(f't;. 18" TWO STOit Y FRAME BRICK VENEER A. U" B. J'".c;,., 18" MONOLITHIC ~& ONE STORY PIERS A. 10" B. IS" X 16" TWO STORY PIERS A. 10" B. 16~ X 16" ONE STORY FRAME RICK VENEER A. 10" B. 10" C. IB" ONE STORY BEARING SLAB A. t" B. U" ONE STORY ·nu.ME WOOD SIDING A. 111 B. I" C. 11111 TWO STORY FRAME BRlCK VENEER A. U" B. I~" C. 11" "'two STORY BEARING SLAB A. 811 B .. l4" TWO STORY FRAME WOOD SIDING A. 10" B. ID" C, 11" COMBINATION ONE STORY Jl'llAME BRICK VENEER A. 10" B. 14" C. U" TWO STORY FRAME BRICK VENEER A. 12" a u· c. 1a" -::TABLE i9-B ONE STORY FRAME WOOD 5IJXNG A.. I" B .. 12" C,. 18° TWO STORY FRAME WOOD SIDING A. 10" B~ i-fi"" C. l8tt ~----------'-"-------_____..-------~=--~--"-~--~~---~ -11- --· I ==t II i I I I •' I ! I I I .I ll 11 II Section 2903 of the Uniform Building Code, 1970 Edition, is amended by amending sub-section (a) thereof by adding thereto a new paragraph to read as follows: 11n areas where the topograph, or the desired design of the floor level is not consisent with Table 29-D then a topographical site plan showing that proper drainage will be attained may be submitted for approval by the Building Official at the time of requesting a building permit, otherwise Table 29-D will be followed. 1 A new Table 29-D is hereby added to the Uniform Building Code, 197 0 Edition, to read as follows: TABLE 29-D MINIMUM FLOOR ELEVATION FOR STRUCTURES REL.A TIVE TO SLOPE ACROSS THE .LOT Difference in elevation I! I from top of curb to rear Minimum floor elevation above top of curb when slope is to rear Minimum floor elevation I above top of curb when 1 a slope is to front I I property line ' I I I I I I l I i I I I I I l I ! I I ' I I fl 0 inches 12 ; ·inches lo½ inches 9 inches 7½ inches 6 inches 4½ inches 3 inches 12 . inches ff. inches 12 inches 18 inches 24 inches 30 inches 36 inches 13½ inches 15 inches 16½ inches 18 inches 19½ inches 21 inches (1) (2) (3) ', The ground shall slope away from the building ~t, all locations The sidewalk shall be level with the top of the curb or a maximum of 2 11 above the top of curb in all instances. The minimum distance from the finished ground elevation to the top of the floor shall be 8 inches at all locations around the building. Section 2905 of the Uniform Building Code, 1970 Edition, is amended by amending sub-section (e) thereof as follows: 1(e). Foundation Plates or Sills. Foundation plates or sills shall be bolted to the foundation or foundation wall with not less than one- half inch (½11) bolts embedded at least six inches (6") into the masonry or concrete and spaced not more than six feet (6 1) apart. There shall be a minimum of two bolts per piece with one bolt located within twelve -12- II , jj -. ---.. -. -it========•=--==========================/ : •' '· • !1 1 · I I l ! I l I I I I I I I II l i I ' i . I I I I! inches (1211 ) of each end of each piece. Foundation plates and sills shall be the kind of wood specified in Section 2517(c). 1 Section 3203 of the Uniform Building Code, 197 0 Edition, is amended by amending the third paragr:-aph of sub-section 2 of sub- section (d) thereof to read as follows: 'Composition shingles shall not be installed on a roof having a . slope of less than three inches (3 11 ) to twelve inches (12") unless approved by the Building Official. 1 Section 3704 of the Uniform Building Code, 1970 Edition, is amended by amending sub-section (j) thereof to read as follows: '(j). Hearth. Every fireplace shall be provided with a brick, con- crete, stone or other approved noncombustible hearth slab at least 12 inches wfdar.on each side tti?Jl the fireplace opening and projec- tion a distance compatible to brick size, but at least 12 inches therefrom. This slab shall be not less than 4 inches thick and shall be supported by noncombustible materials or reinforced to carry its own weight and all imposed loads. Combustible forms and cen- tering shall be removed. r The amendment to Section 3801 of the Uniform Building Code, 1964 Edition, is repealed for the reason that the subject therein is covered in a re-numbered section of the 1970 Edition of this Code. Section 4711 of the Uniform Building Code, 1970 Edition, is amended by amending sub-section (a) thereof by adding a .. new paragraph thereto to read as follows: 'Exception:: : Exterior gypsum wallboard may be used on exterior wall, soffits and ceilings. ' Sections 6003 and 6004 are hereby deleted from the Uniform Building Code, 1970 Edition. SECTION 4. THAT should any section, paragraph, sentence, clause, phrase or word of this Ordinance be declared unconstitutional or invalid for any reason, the remainder of this Ordinance shall not be affected thereby. -13- !i I I I I I l I 11 l I I II t\ = SECTION 5. THAT the City Secretary is hereby authorized to cause I publication of the descriptive caption of this Ordinance as an alternative method 1 provided by law. AND IT IS SO ORDERED. Passed by the Council on first reading this,2_ day of--====-=----• 1971. Passed by the Council on second reading this..2.2.c.dd December , 1971. J. ATTEST: / APPROVED AS TO FORM: Fred O. Senter, m PORTER 2•6411 BOX 2000 LUBBOCK. TEXAS 70408 December 1, 1971 To The Honorable Mayor and City Council City Of Lubbock Municipal Building Lubbock, Texas Gentlemen: The City Council appointed Code Study Committee, after quite a number of meetings to study in detail the differences between the 1964 edition and the 1970 edition of the Unifonn Building Code submits the attached list of changes and unanimously recommends the adoption of the 1970 editton of the Unifonn Building Code as per attached amendments. The changes between the 1970 and the 1964 editions can be broken down into three (3) general catagories as follows: Catagory-1 • Catagory-2. A group of changes required to bring the 1970 edition into confonnity with the Statues or Laws of the State of Texas. These amendments were and are necessary for the 1964 and/or 1970 edition. They now exist and are required changes in the 1970 edition as Texas has some specifics that ·are in conflict with or are not allowed under Texas law. All of the current and existing amendments to the 1964 edition were recommended to be carried forward to the 1970 edition. These cover such items as Signs, Moving structures, Demolishing structures, Contractor•s bond, etc. The Committee recommended slight up.grading of fees charged where pennits are required. (See pennit schedule Sect. 303 of attachment) For the most part, the changes in this catagory are basicly editorial. There has been a strong effort to be more specific in the wording of the 1970 edition in order to "spell out" what is intended and therefore, leaves less to interpretation. To The Honorable Mayor and City Council Page 2 December 1, 1971 Catagory-3. This catagory covers basics such as Engineering and Safety to Life and Property. The 1970 edition recognizes and accepts all of the latest engineering principles as relate to latest materials that have been proven. This includes such items as both high tensile steel and high strength concrete. The 1970 edition accepts the complete new lumber for what its capabilities are and allows full use according to engineering design and requirements and should have a strong influence on wood-frame type construction. In the re-write of Chapter 25, which is wood-frame construction, stud spacing is pennitted up to twenty-four (24) inches, when properly braced, and where loading from an engineering stand point does not exceed certain lfmits. This and other changes in Chapter 25 should help keep the cost of homes and wood-frame apart- ment butld'ings from rising so much due to the increase in the cost of lumber. This is also true in commercial structures that have wood as part of their structure. The Fire requirements and Safety to Life and Property has relaxed some in the Group "'C'* and Group "F 11 Occupancies where in size, conditions and the age of the occupants is taken into consideration. This should be a benefit to the conmercial builder and owner. These same Fire and Life Safety requirements have been made slightly more restictive for Group "D" Occupancies but this is to be expected as the occupancy includes such as Hospitals, Nursing and Convelescent Home and sill'lllular type uses. This is understandable particularly where taking into consideration non-ambulatory persons-This also brings City requirements · more inline with State and Federal requirements, such as the Hill-Burton Act. Therefore, the duly appointed Code Study Committee respectively recommends that the City Council adopt the Unifonn Buildt_ng Code, 1970 Edition with the attached amendments. LH:sk Attachments Lee Heatley, Chai an Building Board of Appeals and Code Study Committee