1、 Addenda LEED Reference Guide for Green Building Operations and Maintenance (2nd edition, updated April 2010) A p r i l 1, 2013 For the documents titled: LEED Reference Guide for Green Building Operations and Maintenance, 2009 Edition (second edition, updated April 2010) Note: This document contains
2、 addenda to the reference guide listed above and will be published on a quarterly basis beginning in April 2010. For more information, visit the USGBC website http:/www.usgbc.org/addenda. Note: This document contains addenda pertaining to the LEED 2009 Alternative Compliance Paths for Projects Outsi
3、de the U.S. This language was released in October, 2011 and was not reflected in the Reference Guide addenda. The 2009 Alternative Compliance Paths for Projects Outside the U.S. have been integrated into the rating system language as of the July 6, 2012 addenda release and all previous versions of t
4、hese paths are no longer valid. Page Location Credit Credit Title Issue Post Date viii Water Efficiency ( W E ) n/a n/a To the far right of the line for “Credit 4.2,” insert “115” 7/19/2010 xiv* Minimum Program Requirements n/a n/a Replace the last sentence of the first paragraph with “To view the M
5、PRs and the MPR Supplemental Guidance, visit the LEED Resources and Tools section of www.usgbc.org/projecttools.” 11/3/2010 x i v Above Registration section n/a n/a Insert the following text: Multiple Buildings and On-Campus Projects The 2010 LEED Application Guide for Multiple Buildings and On-Camp
6、us Building Projects (available at www.usgbc.org/campusguidance) provides guidance on applying the LEED rating systems to multiple-building and on-campus projects that are on a shared site under the control of a single entity; for example, a corporate or educational campus or government installation
7、. The 2010 LEED Application Guide for Multiple Buildings and On-Campus Building Projects provides guidance for the certification of projects under the Design and Construction and Interior Design and Construction rating systems as well as the LEED for Existing Buildings: Operations compressed workwee
8、ks; mass transit; rideshare options1 human-powered conveyances; carpools; vanpools; and low-emitting, fuel-efficient2 or alternative-fuel vehicles; walking or bicycling.“ 7/6/2012 23* Footnotes SSc4 Alternative Commuting Transportation Insert footnote 1 and change footnote 1 to footnote 2, “1. Rides
9、hare is a transit service that involves sharing a single vehicle with multiple people, excluding large-scale vehicles such as buses and trains. The rideshare transit facility must include a signed stop and a clearly defined waiting area. Additionally, the rideshare must include an enclosed passenger
10、 seating area, fixed route service, fixed fare structure, continuous daily operation, and the ability to pick up and drop off multiple riders.“ 7/6/2012 28 APPROACH 1 SSc4 Alternative Commuting Transportation Replace section with that of the supplementary document: https:/www.usgbc.org/ShowFile.aspx
11、?DocumentID=9315 5/9/2011 29-30 Accounting for Diverse Modes and Populations SSc4 Alternative Commuting Transportation Replace text starting from “Accounting for Diverse Modes and Populations“ on page 29 of Reference Guide up to (stopping before) “7. Documentation Guidance“ on page 30 of Reference G
12、uide with the following: Accounting for Diverse Modes and Populations 4/1/2012 5 Addenda LEED Reference Guide for Green Building Operations and Maintenance (2nd edition, updated April 2010) A p r i l 1, 2013 Page Location Credit Credit Title Issue Post Date For non-residential projects (i.e. those u
13、sing calculations based on the annual nonhome-based commuting trips per employee), only regular building occupants can be included in the occupant commute survey. Those who are absent on 1 or more days of the survey period because they telecommute or work a compressed workweek must be listed as maki
14、ng zero trips for the day (or using zero vehicles, per the SCQAMD metric). Employees who walk, cycle, tele-commute, use public transit, or use a fuel-efficient vehicle (as defined in this credit) are counted as making zero conventional commute trips or using zero vehicles. Those who carpool or ride-
15、share for more than 50% of their commuting trip distance are counted according to the number of other commuters in the vehicle. For example, if 2 people carpool to work together for most of the distance to the building, each is counted as making half a trip; 3 carpoolers are counted as making 33.3%
16、of a trip each. Employees who report vacation or sick leave days should be noted but not included in the results. Example 4 Building D has 100 regular occupants, 25 of whom use alternative transportation for their daily commute. To determine the AVR for the building, divide total occupancy (100) by
17、the number of conventional single-occupancy vehicles used for occupants daily commute (75). In this instance the ARV is 1.3. To calculate the RCCT, divide the number of trips avoided or reduced by the use of alternative transportation (50) by the total commuting trips (200). The RCCT is 25%. For res
18、idential projects (i.e. those using calculations based on the annual home-based commuting trips per capita), residents commute patterns only should be included in the occupant commute survey. For residential calculations, assign a value of zero to a trip in which a resident carpools. Example 5 Apart
19、ment building E provided a survey to its 10 occupants. After a preferred parking and transit voucher program was started, seven residents commute to work only using a single occupancy vehicle in both directions, 1 resident carpools to work but drives alone on the return trip, another resident carpoo
20、ls to work but takes transit home and a final resident takes transit in both directions. This building is considered to have reduced its number of regular commuting trips by 25% since 5 of the 20 commute trips used alternative transportation. Projects containing both residential and nonresidential o
21、ccupants should use a combination of the approaches listed above if the majority building occupancy type (residential or employee) comprises less than 90% of the 6 Addenda LEED Reference Guide for Green Building Operations and Maintenance (2nd edition, updated April 2010) A p r i l 1, 2013 Page Loca
22、tion Credit Credit Title Issue Post Date total building occupancy. 31 Second paragraph (above “9. Exemplary Performance” section) SSc4 Alternative Commuting Transportation In the fifth line, replace “4“ with “5“ so the text becomes “(100 occupants x 2 trips per day x 5 days per week)“ 7/19/2010 31 9
23、. Exemplary Performance SSc4 Alternative Commuting Transportation Replace 95% with 80% and remove “trips equivalent to an average vehicle ridership (as defined by SCAQMD) of 20“ 5/9/2011 32 11. Resources SSc4 Alternative Transportation Change the California Air Resources Board, Certified Vehicles Li
24、st website from “http:/www.arb.ca.gov/msprog/ccvl/ccvl.htm“ to “http:/www.arb.ca.gov/“. 8/1/2011 32 11. Resources SSc4 Alternative Transportation Change the California Air Resources Board (CARB), Cleaner Car Guide website to “http:/www.driveclean.ca.gov/“ 11/1/2011 38 Equation 2 SSc5 Site Developmen
25、t Protect or Restore Open Habitat Replace with “Natural Vegetated Roof Area 0.05 (Total Site Area)“ 11/3/2010 40 12. Definitions SSc5 Site Development-Protect or Restore Habitat Revise the text for “Building footprint“ to be “Building footprint is the area on a project site used by the building stru
26、cture, defined by the perimeter of the building plan. Parking lots, parking garages, landscapes, and other nonbuilding facilities are not included in the building footprint.“ 8/1/2011 41* Requirements SSc6 Stormwater Quantity Control Add “OPTION 1“ before first paragraph 7/6/2012 41* Requirements SS
27、c6 Stormwater Quantity Control Add the following after the second paragraph: OR OPTION 2 Use Low Impact Development (LID) practices to capture and treat water from 25% of the impervious surfaces for the 95th percentile of regional or local rainfall events. 7/6/2012 41* Footnotes SSc6 Stormwater Quan
28、tity Control Add the following footnotes to the bottom of the page: 1.The baseline condition is the site condition prior to LEED registration. 2. low impact development (LID) is an approach to managing stormwater runoff that emphasizes on-site natural features to protect water quality by replicating
29、 the natural land cover hydrologic regime of watersheds and addressing runoff close to its source. Examples include better site design principles such as minimizing land disturbance, preserving vegetation, minimizing impervious cover, and design practices like rain gardens, vegetated swales and buff
30、ers, permeable pavement, rainwater harvesting, and soil amendments. These are engineered practices that may require specialized design assistance. 7/6/2012 7 Addenda LEED Reference Guide for Green Building Operations and Maintenance (2nd edition, updated April 2010) A p r i l 1, 2013 Page Location C
31、redit Credit Title Issue Post Date 46 8. Examples SSc6 Stormwater Quantity Control Revise the third equation box to: Qr = (800 cf / 259,200 sec) = (0.003 cfs or 1.35 gpm) 11/1/2011 52 Table 1 SSc7.1 Heat Island Effect, Non-Roof Replace SRI for “Typical new gray concrete“ with 38 5/9/2011 55 12. Defi
32、nitions SSc7.1 Heat Island Effect, Non-Roof For heat island effect, in the second sentence, delete “Particularly in urban areas“; revise the last clause so that it reads, “Other sources may include vehicle exhaust, air-conditioners, and street equipment. Reduced airflow because of tall buildings and
33、 narrow streets exacerbate the effect.“ 10/1/2012 56 12. Definitions SSc7.1 Heat Island Effect, Non-Roof Replace the definition of “solar reflectance, albedo“ with “the fraction of solar energy that is reflected by a surface on a scale of 0 to 1. Black paint has a solar reflectance of 0; white paint
34、 (titanium dioxide) has a solar reflectance of 1. The standard technique for its determination uses spectrophotometric measurements, with an integrating sphere to determine the reflectance at each wavelength. The average reflectance is then determined by an averaging process, using a standard solar
35、spectrum, as documented by ASTM Standards E903 and E892.“ 10/1/2012 57* OPTION 1 SSc7.2 Heat Island Effect-Roof Below equation, add the text and equation: Alternatively, the following equation may be used to calculate compliance: (see https:/www.usgbc.org/ShowFile.aspx?DocumentID=9758) 8/1/2011 57*
36、OPTION 3 SSc7.2 Heat Island Effect-Roof Below equation, add the text and equation: Alternatively, a weighted average approach may be used to calculate compliance for multiple materials: (see https:/www.usgbc.org/ShowFile.aspx?DocumentID=9759) 8/1/2011 61 STEP 2 SSc7.2 Heat Island Effect-Roof Add “sk
37、ylights“ to the list of things deducted from the roof area so that the sentence reads, “Determine the area of the roof covered by mechanical equipment, solar energy panels, skylights, and other appurtenances, and deduct these areas from the total roof surface area.“ 8/1/2011 62 9. Exemplary Performa
38、nce SSc7.2 Heat Island Effect-Roof Replace the term “photovoltaic panels“ with “solar energy panels“ and add “other appurtenances“ to the list of things deducted from the roof area so that the sentence reads “Projects may earn an Innovation in Operations (IO) credit for exemplary performance by demo
39、nstrating that 95% of the projects roof area (excluding any mechanical equipment, solar energy panels, skylights, and other appurtenances) consists of a vegetated roof system.“ 8/1/2011 63 12. Definitions SSc7.2 Heat Island Effect-Roof In alphabetical order, add the term “An appurtenance is any buil
40、t-in, nonstructural portion of a roof system, such as skylights, ventilators, mechanical equipment, partitions, and solar energy panels.“ 8/1/2011 8 Addenda LEED Reference Guide for Green Building Operations and Maintenance (2nd edition, updated April 2010) A p r i l 1, 2013 Page Location Credit Cre
41、dit Title Issue Post Date 63 12. Definitions SSc7.2 Heat Island Effect-Roof In alphabetical order, add the term, “Roof area is the area of the uppermost surface of the building which covers enclosed Gross Floor Area, as measured when projected onto a flat, horizontal surface (i.e. as seen in Roof Pl
42、an view). Roofs, or portions of roofs, covering unenclosed areas (e.g. roofs over porches and open covered parking structures) are not included in the areas used to evaluate compliance with SSc7.2, though they may be applicable to SSc7.1.“ 8/1/2011 63 12. Definitions SSc7.2 Heat Island Effect-Roof F
43、or heat island effect, in the second sentence, delete “Particularly in urban areas“; revise the last clause so that it reads, “Other sources may include vehicle exhaust, air-conditioners, and street equipment. Reduced airflow because of tall buildings and narrow streets exacerbate the effect.“ 10/1/
44、2012 63 12. Definitions SSc7.2 Heat Island Effect-Roof Replace the definition of “solar reflectance, or albedo“ with “the fraction of solar energy that is reflected by a surface on a scale of 0 to 1. Black paint has a solar reflectance of 0; white paint (titanium dioxide) has a solar reflectance of
45、1. The standard technique for its determination uses spectrophotometric measurements, with an integrating sphere to determine the reflectance at each wavelength. The average reflectance is then determined by an averaging process, using a standard solar spectrum, as documented by ASTM Standards E903
46、and E892.“ 10/1/2012 69 Rule 3 SSc8 Light Pollution Reduction Replace the second to last sentence to read, “Finally, measure the angle between this fixture line of sight and the perpendicular with the vertex located at the fixture edge.“ 8/1/2011 69 Figure 3 SSc8 Light Pollution Reduction See revise
47、d image: https:/www.usgbc.org/ShowFile.aspx?DocumentID=9760 8/1/2011 70 OPTION 2 SSc8 Light Pollution At end of the second paragraph, add the sentence “Lighting of flags must also meet the shielding requirements.” 11/3/2010 75 Definitions SSc8 Light Pollution In alphabetical order, insert the term “
48、emergency lighting“ with the text “Emergency lighting as defined by the Illuminating Engineering Society of North America is lighting designed to supply illumination essential to the safety of life and property in the event of failure of the normal supply.” 5/9/2011 81* Requirements W Ep1 Minimum In
49、door Plumbing Fixture and Fitting Efficiency In the section, replace the three instances of “1993” with “1994” 7/19/2010 82 Environmental Issues W Ep1 Minimum Indoor Plumbing Fixture and Fitting Efficiency In the section, remove both instances of “potable” 7/19/2010 84 Table 1 W Ep1 Minimum Indoor Plumbing Fixture and Fitting Efficiency In the fourth row of the table in the “EPA WaterSense Standards” column, replace “1.5 - 2.0b“ with “2.0b” 7/19/2010 84 Table 1 W Ep1 Minimum Indoor Plumbing Fixture and Fitting Efficiency In footnote “b,” replace “2.0 gmp“ with “2.0 gp
