Ordinance 305-74 - Laserfiche WebLink

used for sleeping purposes. In an efficiency dwelling unit the detector shall be centrally located on the ceil- ing of the main room. Where sleeping rooms are on an upper level, the detector shall be placed at the center of the ceiling directly above the stairway. All detec- tors shall be located within 12 inches of the ceiling . Care shall be exercised to ensure that the installation will not interfere with the operating characteristics of the detector. When actuated, the detector shall provide an alarm audible in every dwelling unit. " Section 8 : That there is hereby added to the Uniform Building Code, 1973 Edition, the following section en- titled 1717: "Section 1717 - Rat-proofing of Buildings Any building or structure whose floor is not eighteen (18) inches above the level of the ground at all points shall be required to have a concrete or masonry foundations or skirting constructed of two layers of inorganic material with 1/2-inch mesh wire netting placed between the two layers . Such skirting shall extend 12 inches below the grade and 18 inches above the grade. Foundation walls or skirting shall extend around the entire perimeter of the building . Foundation ventilators shall be screened with 1/2-inch mesh. Where flooring is placed over any con- crete floor and not in direct contact with the floor pro- visions approved by the Building Official shall be made to rat-proof all concealed areas. " Section 9 : That Subsection 2517 (c) 6 of the Uniform Building Code, 1973 Edition, be and hereby is amended to read as follows: "Subsection 2517 (c) 6 - Foundation Ventilation Underfloor areas shall be ventilated by an approved mechanical means or by openings in exterior foundation walls . Such openings shall have a net area of not less than 72 square inches for each 25 linear feet of exterior wall . Openings shall be located as close to corners as practicable and shall provide cross ventilation on at least two approximately opposite sides. They shall be covered with corrosion-resistant wire mesh not less than 1/4-inch nor more than 1/2-inch in any dimension. " Section 10 : That Subsection 2305 (c) of the Uniform Building Code, 1973 Edition, be and hereby is amended to read as follows: "Subsection 2305 (c) - Snow Loads Snow loads full or unbalanced shall be considered in place of loads set forth in Table No . 23-B, where such loading will result in larger members or connections. The snow load shall be 25 pounds per square foot of pro- jected roof area. Potential accumulation of snow at valleys , parapets , roof structures, and offsets in roofs of uneven configuration shall be considered. -5-