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SEC. 99.04.106.
   (Amended by Ord. No. 186,488, Eff. 12/27/19.)
 
99.04.106.2.  Storm Water Drainage and Retention During Construction.  Projects which disturb soil shall manage storm water drainage during construction.  In order to manage storm water drainage during construction one or more of the following measures shall be implemented to prevent flooding of adjacent property, prevent erosion and retain soil runoff on the site:
 
   1.   Retention basins of sufficient size shall be utilized to retain storm water on the site;
 
   2.   Where storm water is conveyed to a public drainage system, collection point, gutter, or similar disposal method, water shall be filtered by use of a barrier system, wattle or other method approved by the Department; or
 
   3.   Compliance with City of Los Angeles’ storm water management ordinance(s).
 
99.04.106.4.2.  New Multi-family Dwellings and "R" Occupancies Other Than One- and Two-family Dwellings and Townhouses.  (Amended by Ord. No. 186,485, Eff. 1/28/20.)  Where multi-family dwelling units and other "R" occupancies are constructed on a building site, and parking is available, 30% of the total number of parking spaces provided, but in no case less than one space, shall be electric vehicle charging spaces (EV spaces) capable of supporting future electric vehicle supply equipment (EVSE).
 
   Calculations for the required number of EV spaces and electric vehicle charging stations (EVCS) shall be rounded up to the nearest whole number.
 
99.04.106.4.3.1. New Hotels and Motels.  (Added by Ord. No. 186,485, Eff. 1/28/20.)  The number of required EV spaces at newly constructed hotels and motels shall be 30% of the total number of parking spaces provided, but in no case less than one, for all types of parking facilities.  Calculations for the required number of EV spaces shall be rounded up to the nearest whole number.
 
   Section 4.106.4.3.1 and Table 04.106.4.3.1 of the California Green Building Standards Code, Title 24, Part 11 are not adopted.
 
99.04.106.4.4. Number of Required Electric Vehicle Charging Stations.  (Added by Ord. No. 186,485, Eff. 1/28/20.)  The number of EVCS shall be 10% of the total number of parking spaces provided for all new multi-family dwelling units, other "R" occupancies, hotels and motels.  Calculations for the number of required EVCS shall be rounded up to the nearest whole number.  The number of EVCS can be counted towards the total number of EV spaces required for the building required per Subsections 99.04.106.4.2 and 99.04.106.4.3.1.
 
99.04.106.5.  Cool Roof for Reduction of Heat Island Effect.  Roofing material shall comply with both LAMC Subdivisions 99.04.106.5.1 and 99.04.106.5.2, or comply with LAMC Subdivision 99.04.106.5.3.
 
   EXCEPTIONS:
 
   1.    Roof repair as defined in Section 100.1(b) of the California Energy Code; or
 
   2.     Roof replacement when the roof area being replaced is equal to or less than 50% of the total roof area;
 
   3.     Roof replacement where solar systems are being installed; or
 
   4.     Additions resulting in less than 500 square feet of added roof area or less than 50% of the total roof area, whichever is greater.
 
99.04.106.5.1.  Solar Reflectance.  Roofing material shall have a minimum three-year aged solar reflectance equal to or greater than the values specified in LAMC Table 99.04.106.5.  Solar reflectance shall be determined by testing by an approved agency in accordance with ASTM C1549, ASTM E1918 or CRRC-1.  Solar reflectance values shall be based on the aged reflectance value of the roofing product or the equation in LAMC Section A4.106.5.1 if aged solar reflectance values are not available.  (Amended by Ord. No. 185,198, Eff. 11/22/17.)
 
99.04.106.5.2.  Thermal Emittance.  Roofing materials shall have an emittance value equal to or greater than those specified in LAMC Table 99.04.106.5.  Thermal emittance shall be determined by testing by an approved agency in accordance with ASTM C1371, ASTM E408 or CRRC-1.  (Amended by Ord. No. 185,198, Eff. 11/22/17.)
 
99.04.106.5.3.  Solar Reflectance Index.  Roofing materials shall have a 3 year aged Solar Reflectance Index equal to or greater than those specified in LAMC Table 99.04.106.5.  Solar Reflectance Index (SRI) shall be determined in accordance with ASTM E1980.  Calculation of aged SRI may be based on either tested or calculated 3 year aged values of solar reflectance.
 
TABLE 99.04.106.5
 
ROOF SLOPE
MINIMUM 3-YEAR AGED SOLAR REFLECTANCE
THERMAL EMITTANCE
3 YEAR AGED SOLAR REFLECTANCE INDEX
(SRI)
< 2:12
0.63
0.75
75
2:12
0.20
0.75
16
 
99.04.106.7.  Reduction of Heat Island Effect for Nonroof Areas [N].  Reduce nonroof heat islands for 50% of pathways patios, driveways or other paved areas by using one or more of the methods listed.
 
   1.   Use trees or other plantings to provide shade and that mature within 15 years of planting.  Trees shall be suitable in mature size and environmental requirements for the site.  Tree selection and placement shall consider location and size of areas to be shaded, location of utilities, views from the structure, distance to sidewalks and foundations, overhangs onto adjacent properties and streets; other infrastructure and adjacent to landscaping.  In addition, shading shall not cast a shadow, as specified, on any neighboring solar collectors pursuant to California Public Resources Code Section 25981, et seq. (Solar Shade Control Act);
 
   2.   Use high albedo materials with an initial solar reflectance value of at least .30 as determined in accordance with American Society for Testing and Materials (ASTM) Standards E1918 or C1549;
 
   3.   Use open grid pavement system or pervious or permeable pavement system;
 
   4.   Use solar panel arrays to create a canopy shade system; or
 
   5.   Other methods of reducing heat island effects acceptable to the Department.