ss credit 8: light pollution reduction
LEED 2009 for Schools New Construction and Major Renovations
SS CREDIT 8: LIGHT POLLUTION REDUCTION All fields and uploads are required unless otherwise noted.
INTERIOR LIGHTING This static sample form has been modified for offline access. All sections of the form are visible. Sample forms are for reference only. Select one of the following: Option 1. Reduced Input Power. All nonemergency interior lighting fixtures with a direct line of sight to any openings in the envelope are automatically controlled and programmed to turn off or have their input power reduced by at least 50% between 11pm and 5am. Option 2. Shielding. All openings in the building envelope with direct line of sight to any nonemergency interior luminaires are shielded between 11pm and 5am, for a resultant transmittance of less than 10%. No non-emergency interior luminaires have a direct line of sight to openings in the building envelope.
EXTERIOR LIGHTING Select one of the following: There are no exterior lighting devices within the LEED project boundary. Exterior lighting devices are present within the LEED project boundary. Select one of the following: There are no exterior sports lighting devices within the LEED project boundary. Exterior sports lighting devices are present within the LEED project boundary. Classify the project under one of the following zones: LZ1: Dark. Developed areas within national parks, state parks, forest land and rural areas. LZ2: Low. Areas predominantly consisting of residential zoning, neighborhood business districts, light industrial with limited nighttime use, and residential mixed use areas. LZ3: Medium. All other areas not included in LZ1, LZ2 or LZ4 such as Commercial/Industrial, High-Density Residential. LZ4: High. High activity commercial districts in major metropolitan areas. Note: To be LZ4, the area must be so designated by the local jurisdiction such as the local zoning authority.
LEED 2009 for Schools New Construction and Major Renovations SS Credit 8: Light Pollution Reduction
Page 1 of 4
Version 4.0 Copyright © 2009 U.S. Green Building Council. All Rights Reserved.
ASHRAE Base Site Allowance available for this project, based on lighting zone:
Watts
Note: The Base Site Allowance may be used in tradable or non-tradable surfaces in Tables SSc8-1 and SSc8-2. The sum of the Base Site Allowances used in Tables SSc8-1 and SSc8-2 may not exceed the values listed above. Refer to ASHRAE 90.1-2007, Addendum I for additional information.
For each tradable lighting surface, list the actual lighting power density (LPD) and the ASHRAE/IESNA Standard 90.1-2007 allowable LPD. Total actual exterior site lighting must not exceed the total ASHRAE allowable site lighting. Include only surfaces that are provided with lighting. Unlit surfaces cannot be claimed for additional lighting power allowance. Table SSc8-1. Lighting Power Density For Building Exteriors: Tradable Surfaces Lighting Location Description
Tradable Surfaces (Watts)
ASHRAE 90.1-2007 Surface Type
Area or Length
Actual Lighting Power (Watts)
Actual LPD
LPD Units
ASHRAE Allowable LPD
Total actual exterior lighting power
0
Total ASHRAE allowable exterior lighting power per Table 9.4.6
0
+
-
+
-
ASHRAE Base Site Allowance used (Optional) Total allowable exterior lighting power, including Base Site Allowance
0
Total actual exterior lighting power less than or equal to total allowable for tradable surfaces?
No
Complete the table below. Include only surfaces that are provided with lighting. Unlit surfaces cannot be claimed for additional lighting power allowance. Table SSc8-2. Lighting Power Density For Building Exterior: Nontradable Surfaces Lighting Location Description
ASHRAE 90.1-2007 Surface Type
Area, Actual Length, Lighting Actual or # of Power LPD units (Watts)
LPD Units
ASHRAE Total ASHRAE Base Site Allowable Allowance Allowable (Watts) LPD LPD (Optional)
Actual LPD less than or equal to allowable for each nontradable surface?
No
Table SSc8-3. Base Site Allowance Total available ASHRAE Base Used for tradable surfaces (from Table SSc8-1) Site Allowance Used for nontradable surfaces (from Table SSc8-2) (Watts) Total used Base Site Allowance used is less than or equal to allowance available?
0 0 0 No
Table SSc8-4. Site Lumen Calculation
LEED 2009 for Schools New Construction and Major Renovations SS Credit 8: Light Pollution Reduction
Page 2 of 4
Version 4.0 Copyright © 2009 U.S. Green Building Council. All Rights Reserved.
Fixture Type
Site Fixture Lumens
Quantity of Installed Luminaires
Initial Fixture Lumens per Luminaire
Initial Fixture Total Fixture Lumens Total Fixture Lumens Above Above 90 Lumens 90 Degrees Degrees from Nadir from Nadir
Totals
0
0
0
0
Percentage above 90 degrees from nadir
0
LZ allowable percentage above 90 degrees from nadir
0
% of site fixture lumens above 90 degrees from nadir less than or equal to LZ allowable?
+
-
No
For the illuminance generated from a single luminaire placed at the intersection of a vehicular driveway and public roadway accessing the site, the centerline of the public roadway is used as the site boundary for no more than a length of 2 times the driveway width centered at the centerline of the driveway. (Optional)
ADDITIONAL DETAILS Special circumstances preclude documentation of credit compliance with the submittal requirements outlined in this form.
SPECIAL CIRCUMSTANCES Describe the circumstances limiting the project team's ability to provide the submittals required in this form. Be sure to reference what additional documentation has been provided, if any. Non-standard documentation will be considered upon its merits.
The project team is using an alternative compliance approach in lieu of standard submittal paths.
LEED 2009 for Schools New Construction and Major Renovations SS Credit 8: Light Pollution Reduction
Page 3 of 4
Version 4.0 Copyright © 2009 U.S. Green Building Council. All Rights Reserved.
ALTERNATIVE COMPLIANCE PATH Describe the alternative compliance path used by the project team. Include justification that this path meets the credit intent and requirements. Be sure to reference what additional documentation has been provided, if any. Non-standard documentation will be considered upon its merits.
Upload SSc8-ACP. Provide any additional documents that support the alternative compliance path approach. (Optional)
Upload
SUMMARY SS Credit 8: Light Pollution Reduction Points Documented:
LEED 2009 for Schools New Construction and Major Renovations SS Credit 8: Light Pollution Reduction
Check Compliance
Page 4 of 4
Version 4.0 Copyright © 2009 U.S. Green Building Council. All Rights Reserved.
SS CREDIT 8: LIGHT POLLUTION REDUCTION All fields and uploads are required unless otherwise noted.
INTERIOR LIGHTING This static sample form has been modified for offline access. All sections of the form are visible. Sample forms are for reference only. Select one of the following: Option 1. Reduced Input Power. All nonemergency interior lighting fixtures with a direct line of sight to any openings in the envelope are automatically controlled and programmed to turn off or have their input power reduced by at least 50% between 11pm and 5am. Option 2. Shielding. All openings in the building envelope with direct line of sight to any nonemergency interior luminaires are shielded between 11pm and 5am, for a resultant transmittance of less than 10%. No non-emergency interior luminaires have a direct line of sight to openings in the building envelope.
EXTERIOR LIGHTING Select one of the following: There are no exterior lighting devices within the LEED project boundary. Exterior lighting devices are present within the LEED project boundary. Select one of the following: There are no exterior sports lighting devices within the LEED project boundary. Exterior sports lighting devices are present within the LEED project boundary. Classify the project under one of the following zones: LZ1: Dark. Developed areas within national parks, state parks, forest land and rural areas. LZ2: Low. Areas predominantly consisting of residential zoning, neighborhood business districts, light industrial with limited nighttime use, and residential mixed use areas. LZ3: Medium. All other areas not included in LZ1, LZ2 or LZ4 such as Commercial/Industrial, High-Density Residential. LZ4: High. High activity commercial districts in major metropolitan areas. Note: To be LZ4, the area must be so designated by the local jurisdiction such as the local zoning authority.
LEED 2009 for Schools New Construction and Major Renovations SS Credit 8: Light Pollution Reduction
Page 1 of 4
Version 4.0 Copyright © 2009 U.S. Green Building Council. All Rights Reserved.
ASHRAE Base Site Allowance available for this project, based on lighting zone:
Watts
Note: The Base Site Allowance may be used in tradable or non-tradable surfaces in Tables SSc8-1 and SSc8-2. The sum of the Base Site Allowances used in Tables SSc8-1 and SSc8-2 may not exceed the values listed above. Refer to ASHRAE 90.1-2007, Addendum I for additional information.
For each tradable lighting surface, list the actual lighting power density (LPD) and the ASHRAE/IESNA Standard 90.1-2007 allowable LPD. Total actual exterior site lighting must not exceed the total ASHRAE allowable site lighting. Include only surfaces that are provided with lighting. Unlit surfaces cannot be claimed for additional lighting power allowance. Table SSc8-1. Lighting Power Density For Building Exteriors: Tradable Surfaces Lighting Location Description
Tradable Surfaces (Watts)
ASHRAE 90.1-2007 Surface Type
Area or Length
Actual Lighting Power (Watts)
Actual LPD
LPD Units
ASHRAE Allowable LPD
Total actual exterior lighting power
0
Total ASHRAE allowable exterior lighting power per Table 9.4.6
0
+
-
+
-
ASHRAE Base Site Allowance used (Optional) Total allowable exterior lighting power, including Base Site Allowance
0
Total actual exterior lighting power less than or equal to total allowable for tradable surfaces?
No
Complete the table below. Include only surfaces that are provided with lighting. Unlit surfaces cannot be claimed for additional lighting power allowance. Table SSc8-2. Lighting Power Density For Building Exterior: Nontradable Surfaces Lighting Location Description
ASHRAE 90.1-2007 Surface Type
Area, Actual Length, Lighting Actual or # of Power LPD units (Watts)
LPD Units
ASHRAE Total ASHRAE Base Site Allowable Allowance Allowable (Watts) LPD LPD (Optional)
Actual LPD less than or equal to allowable for each nontradable surface?
No
Table SSc8-3. Base Site Allowance Total available ASHRAE Base Used for tradable surfaces (from Table SSc8-1) Site Allowance Used for nontradable surfaces (from Table SSc8-2) (Watts) Total used Base Site Allowance used is less than or equal to allowance available?
0 0 0 No
Table SSc8-4. Site Lumen Calculation
LEED 2009 for Schools New Construction and Major Renovations SS Credit 8: Light Pollution Reduction
Page 2 of 4
Version 4.0 Copyright © 2009 U.S. Green Building Council. All Rights Reserved.
Fixture Type
Site Fixture Lumens
Quantity of Installed Luminaires
Initial Fixture Lumens per Luminaire
Initial Fixture Total Fixture Lumens Total Fixture Lumens Above Above 90 Lumens 90 Degrees Degrees from Nadir from Nadir
Totals
0
0
0
0
Percentage above 90 degrees from nadir
0
LZ allowable percentage above 90 degrees from nadir
0
% of site fixture lumens above 90 degrees from nadir less than or equal to LZ allowable?
+
-
No
For the illuminance generated from a single luminaire placed at the intersection of a vehicular driveway and public roadway accessing the site, the centerline of the public roadway is used as the site boundary for no more than a length of 2 times the driveway width centered at the centerline of the driveway. (Optional)
ADDITIONAL DETAILS Special circumstances preclude documentation of credit compliance with the submittal requirements outlined in this form.
SPECIAL CIRCUMSTANCES Describe the circumstances limiting the project team's ability to provide the submittals required in this form. Be sure to reference what additional documentation has been provided, if any. Non-standard documentation will be considered upon its merits.
The project team is using an alternative compliance approach in lieu of standard submittal paths.
LEED 2009 for Schools New Construction and Major Renovations SS Credit 8: Light Pollution Reduction
Page 3 of 4
Version 4.0 Copyright © 2009 U.S. Green Building Council. All Rights Reserved.
ALTERNATIVE COMPLIANCE PATH Describe the alternative compliance path used by the project team. Include justification that this path meets the credit intent and requirements. Be sure to reference what additional documentation has been provided, if any. Non-standard documentation will be considered upon its merits.
Upload SSc8-ACP. Provide any additional documents that support the alternative compliance path approach. (Optional)
Upload
SUMMARY SS Credit 8: Light Pollution Reduction Points Documented:
LEED 2009 for Schools New Construction and Major Renovations SS Credit 8: Light Pollution Reduction
Check Compliance
Page 4 of 4
Version 4.0 Copyright © 2009 U.S. Green Building Council. All Rights Reserved.
