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// CODE SNIPPET

A4.106.7 Reduction of Heat Island Effect for Nonroof Areas

Los Angeles Green Building Code > A4 Residential Voluntary Measures > A4.106 Site Development > A4.106.7 Reduction of Heat Island Effect for Nonroof Areas
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Reduce nonroof heat islands for 50 percent of sidewalks, patios, driveways or other paved areas by using one or more of the methods listed.

  1. Trees or other plantings to provide shade and that mature within 15 years of planting. Trees should be native or adaptive to the region and climate zones and noninvasive; hardy and resistant to drought, insects and disease; easy to maintain (no frequent shedding of twigs, branches, unwanted fruit or seed pods); and suitable in mature size and environmental requirements for the site. Tree selection and placement should 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 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 0.30 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. Locate 50 percent of parking underground or use multilevel parking.
  5. Other methods of reducing heat island effects acceptable to the enforcing agency.

Note: Local agencies may have ordinances requiring mitigation of heat island effects through building or parking lot shading, tree plantings, landscaping, use of pervious pavements and other approved methods.

Related Code Sections


A4.106.7 Residential Voluntary Measures, Reduction of Heat Island Effect for Nonroof Areas
Reduce nonroof heat islands for 50 percent of sidewalks, patios, driveways or other paved areas by using one or more of the methods listed. Trees ...
Los Angeles Green Building Code > A4 Residential Voluntary Measures > A4.106 Site Development > A4.106.7 Reduction of Heat Island Effect for Nonroof Areas
A5.106.11 Nonresidential Voluntary Measures, Heat Island Effect
Reduce nonroof heat islands by Section A5.106.11.1 and roof heat islands by Section A5.106.11.2 ...
Los Angeles Green Building Code > A5 Nonresidential Voluntary Measures > A5.106 Site Development > A5.106.11 Heat Island Effect
A5.106.11 Nonresidential Voluntary Measures, Heat Island Effect
Reduce nonroof heat islands by Section A5.106.11.1 and roof heat islands by Section A5.106.11.2 ...
Los Angeles Green Building Code > A5 Nonresidential Voluntary Measures > A5.106 Site Development > A5.106.11 Heat Island Effect
A4.106.5 Residential Voluntary Measures, Cool Roof for Reduction of Heat Island Effect
the roof membrane including areas of vegetated (green) roofs, weighing at least 25 pounds per square foot. Roof areas covered by building integrated ...
Los Angeles Green Building Code > A4 Residential Voluntary Measures > A4.106 Site Development > A4.106.5 Cool Roof for Reduction of Heat Island Effect
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