SEC. 99.11.102. GENERAL.

   (Amended by Ord. No. 187,719, Eff. 1/23/23.)

   This section shall set forth the Residential Voluntary Measures.

A4.105.2. Reuse of Materials. Use salvaged, refurbished or reused materials for a minimum of 2.5% of the total value, based on estimated cost of materials on the project. Materials which can be easily reused include but are not limited to the following:

   1.   Light fixtures;

   2.   Plumbing fixtures;

   3.   Doors and trim;

   4.   Masonry (reused masonry may only be used for flatwork);

   5.   Electrical devices;

   6.   Appliances;

   7.   Foundations or portions of foundations.

   Note: Reused material must be in compliance with the appropriate California Code of Regulations Title 24 requirements. (Amended by Ord. No. 185,587, Eff. 7/16/18.)

TABLE A4.106.5.1(1)
TIER 1 – LOW RISE RESIDENTIAL

 

ROOF SLOPE	MINIMUM 3-YEAR AGED SOLAR REFLECTANCE	THERMAL EMITTANCE	3-YEAR AGED SRI
≤ 2 : 12	0.68	0.85	82
> 2 : 12	0.28	0.85	27

 

TABLE A4.106.5.1(2)
TIER 2 – LOW-RISE RESIDENTIAL

 

ROOF SLOPE	MINIMUM 3-YEAR AGED SOLAR REFLECTANCE	THERMAL EMITTANCE	3-YEAR AGED SRI
≤ 2 : 12	0.70	0.85	85
> 2 : 12	0.34	0.85	35

 

TABLE A4.106.5.1(3)
TIER 1 – HIGH-RISE RESIDENTIAL BUILDINGS, HOTELS, AND MOTELS

 

ROOF SLOPE	MINIMUM 3-YEAR AGED SOLAR REFLECTANCE	THERMAL EMITTANCE	3-YEAR AGED SRI
≤ 2 : 12	0.68	0.85	82
> 2 : 12	0.28	0.85	27

 

TABLE A4.106.5.1(4)
TIER 2 – HIGH-RISE RESIDENTIAL BUILDINGS, HOTELS, AND MOTELS

 

ROOF SLOPE	MINIMUM 3-YEAR AGED SOLAR REFLECTANCE	THERMAL EMITTANCE	3-YEAR AGED SRI
≤ 2 : 12	0.70	0.85	85
> 2 : 12	0.34	0.85	35

 

A4.106.7. Reduction of Heat Island Effect for Nonroof Areas [N]. (Added by Ord. No. 187,208, Eff. 11/5/21.) Reduce nonroof heat islands for 75% 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, and other infrastructure adjacent to landscaping. In addition, shading shall not cast a shadow, as specified, on any neighboring solar collectors pursuant to 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.

A4.405.2. Concrete Floors. 75% of all slab-on-grade and structural concrete slab floors that do not require additional coverings are used including but not limited to stained, natural or stamped concrete floors.

   Note: Uncovered floors must still remain durable and maintain any acoustical insulation required elsewhere by the Los Angeles Municipal Code.

A4.405.4. Use of Building Materials from Rapidly Renewable Sources. One or more of the following materials manufactured from rapidly renewable sources or agricultural by-products is used for a minimum of 2.5% of the total value, based on estimated cost of materials on the project:

   1.    Insulation;

   2.    Bamboo or cork;

   3.    Engineered products;

   4.    Agricultural based products;

   5.    Other products acceptable to the enforcing Department.

   Note: The intent of this section is to utilize building materials and products which are typically harvested within a 10-year or shorter cycle.

A4.407.1. Drainage Around Foundations. Where not required by code or ordinance, install foundation and landscape drains which discharge to a dry well, sump, bioswale or other approved on-site location.

A4.407.7. Roof Overhangs. When permitted by the Los Angeles Municipal Code, a permanent overhang or non-retractable awning at least 2 feet in depth is provided at all exterior walls.