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HomeMy WebLinkAbout059 - 06/21/1977 - AMENDING THE UNIFORM BUILDING CODE ADOPTED BY ARTICLE 1 OF CHAPTER 38 OF THE CITY CODE ADDING CHAPTE J � ORDINANCE NO. 59 , 1977 BEING AN ORDINANCE AMENDING THE UNIFORM BUILDING CODE ADOPTED BY ARTICLE 1 OF CHAPTER 38 OF THE CODE OF THE CITY OF FORT COLLINS ADDING CHAPTER 53 RELATING TO INSULATION REQUIREMENTS TO THE UNIFORM BUILDING CODE BE IT ORDAINED BY THE COUNCIL OF THE CITY OF FORT COLLINS That Section 38-2 of the Code of the City of Fort Collins be, and the same hereby is, amended by adding thereto an additional subsection R as follows: "R Chapter 53 is amended by deleting therefrom the words 'NO REQUIREMENTS' , and by substituting therefor the following: "Chapter 53. "INSULATION "Purpose "Sec. 5301. The purpose of this chapter is to provide standards and requirements for thermal insulation for buildings in the City of Fort Collins in order to conserve energy used in heating and cooling of such buildings. "Scope "Sec. 5302. The standards set forth in this chapter shall be minimum standards Insulation meeting or exceeding the minimum requirements contained in this chapter shall be installed in all residential dwellings (I and H occupancies) constructed within the City of Fort Collins. All insulating material must conform to the flame spread requirements of Uniform Building Code Class I material. "Definitions "Sec. 5303. For the purpose of this Chapter 53, the terms, phrases, words and their derivatives hereinafter set forth shall have the meaning and be construed as herein specified. "A. B.T U. or BRITISH THERMAL UNIT - the amount of heat needed to raise the temperature of one pound 1"F. at sea level. I "B. 'K' VALUE - thermal conductivity is the amount of heat (BTU's) transferred in one hour through one square foot of a homogenous material one inch thick for a difference in temperature of 1°F. "C. 'U' VALUE - this indicates the total or overall transmission of heat (BTU' s) in one hour per square foot of area for a difference in temperature of 1°F. between the air on one side to the air on the other side of any construction. "D. A.S H R A E. - the initials for the American Society of Heating, Refrigerating and Air Conditioning Engineers. "E. BUILDING - the term 'building' shall mean any new structure built for occupancy of I or H as designated in the Uniform Building Code. "F GLAZED OPENINGS - any openings covered with transparent or translucent material. "G. 'R' VALUE - this means the resistance of a material to the passage of heat determined in accordance with A S.H R.A E. 'R' shall refer only to the insulating material. "H. ZONED - individual areas having their own heat and control device. "i. STORY - means the portion of a building between a floor and another floor or roof. "J. UNHEATED SPACE - any space which is not provided with heat sufficient to raise the temperature to 70°F. three (3) feet above the floor. "K. HEATED SPACE - any space which is provided with heat sufficient to raise the temperature to 70°F. three (3) feet above the floor. -2- "Minimum Requirements of Insulation "Sec. 5304. Insulation installed pursuant to this chapter shall meet the following minimum requirements. "A. Walls. Side wall insulation of a building shall have an 'R' value of not less than R-11. "EXCEPTION "1 Exterior foundation walls having no more than 12" exposed above grade around the entire perimeter need not be insulated. "2. Walls above grade which are constructed of wood, stone, adobe, brick masonry, or other relatively dense materials having an installed density in excess of 15 pounds per cubic foot shall be deemed in compliance with this section. "A-1. Walls of unheated spaces need not be insulated. "EXCEPTION: "l. Walls adjoining unheated spaces shall be insulated as specified in A above "A-2. Foundation of slab on grade shall have a perimeter insulation with a minimum 'R' value of 7 of a material approved by the Chief Building Inspector. This insulation material shall extend vertically two (2) feet above grade on the side of the foundation wall. Where the foundation wall comes in contact with a concrete slab, there will be an expansion material of not less than one-half (1/2) inch. "B. Floors. Floors constructed over an unheated crawl space shall be insulated with an 'R' value of not less than R-11. This installation shall be made so that the perimeter of the building at floor level will comply with this requirement "B-1. Floors constructed over a garage and separating the garage from living areas shall be insulated with an 'R' value of not less than R-11. "B-2. Floors constructed over an unheated basement shall be insulated with an 'R' value of not less than R-11. -3- r Y "B-3. Floors separating living areas over heated areas need not be insulated. "EXCEPTION- "l. It is recommended that floors separating living areas and constructed over heated areas be insulated with an 'R' value of not less than R-11 when the building is to utilize zoned heating. "C. Ceilings. The roof ceiling of a building shall have an 'R' value of not less than R-19 "C-1. In cathedral, flat, and mansard roof/ceilings where vapor barrier is used, there shall be one square foot of ventilation space for every 300 square feet of insulated area Where there is no vapor barrier used, the ventilation area shall be one square foot for every one hundred fifty (150) square feet of insulated area. "D. Openings. All glazed openings shall be glazed with insulating glass as defined by A.S.H R.A.E. or shall be equipped with storm windows. "EXCEPTION: "l. Decorative windows shall not be required to comply with this provision. "E. Caulking and Sealants. Exterior joints around windows and door frames, between wall cavities and window or door frames, between wall and foundation, between wall and roof, between wall panels, at penetration or utility services through walls, floors, and roofs, and all other openings in the exterior envelope shall be caulked, gasketed, weather stripped, or otherwise sealed. "F. Vapor Barrier. No area requiring insulation shall have more than one (1) vapor barrier "G. Installation All insulating materials are to be applied or installed in a workmanlike manner ti complying with the manufacturer' s recommendation. Introduced, considered favorably on first reading, and ordered published this 7th day of June, A.D. 1977, and to be -4- presented for final passage on the 21st day of June, A.D. 1977. g Mayor City Clerk Passed and adopted on final reading this 21st day of June, A.D. 1977. /k. ATTEST Mayor City Clerk -5-