Revise the second sentence of Option 2 to say the following:
"Any roof used to shade or cover parking must (1) have an aged SRI of at least 32 (if aged SRI information is not available..."
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Credit language
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Choose one of the following options:
|
Slope |
Initial SRI |
OR |
Aged SRI |
---|---|---|---|---|
Low-sloped roof |
≤ 2:12 |
82 |
|
64 |
Steep-sloped roof |
> 2:12 |
39 |
|
32 |
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Addenda
Revise the second sentence of Option 2 to say the following:
"Any roof used to shade or cover parking must (1) have an aged SRI of at least 32 (if aged SRI information is not available..."
Revise the below SS credit intents as follows:
SSp Construction Activity Pollution Prevention
"To reduce pollution from construction activities by controlling soil erosion, waterway sedimentation, and airborne dust that disproportionately impact frontline communities."
SSc Site Assessment
"To assess site conditions, environmental justice concerns, and cultural and social factors, before design to evaluate sustainable options and inform related decisions about site design."
SSc Rainwater Management
"To reduce runoff volume and improve water quality by replicating the natural hydrology and water balance of the site, based on historical conditions and undeveloped ecosystems in the region to avoid contributing to flooding downstream in frontline communities."
SSc Heat Island Reduction
"To minimize inequitable effects on microclimates and human, especially frontline communities, and wildlife habitats by reducing heat islands."
SSc Places of Respite
"To provide patients, all staff, and visitors with the health benefits of the natural environment by creating outdoor places of respite on the healthcare campus."
SSc Direct Exterior Access
"To provide patients, all staff, and visitors with the health benefits of the natural environment by creating outdoor places of respite on the healthcare campus."
For BD+C, revise language under Table 1 to read as follows. For O+M insert the language below under Table 1.
"Roof area that consists of functional, usable spaces (such as helipads, recreation courts, and similar amenity areas) may meet the requirements of nonroof measures. Applicable roof area excludes roof area covered by mechanical equipment, solar energy panels, skylights, and any other appurtenances."
Can v4 projects use typical solar reflectance (SR) values, or data from a previous project, for documentation of hardscape materials?
The following typical SR values can be used for standard nonroof materials, in lieu of project-specific testing data:
Typical Solar Reflectance Values for Standard Nonroof Materials
Gray cement concrete- Initial Solar Reflectance: 0.26, Three-Year Aged Solar Reflectance*: 0.18
White cement concrete- Initial Solar Reflectance: 0.70, Three-Year Aged Solar Reflectance*: 0.35
Asphalt concrete- Initial Solar Reflectance: 0.05, Three-Year Aged Solar Reflectance*: 0.10
*Three-year aged SR values are based on no cleaning.
Alternatively, documentation showing that the current concrete mix and sealant are equivalent to a tested mix and sealant from a previous project is acceptable, provided that all ingredients are the same and have not changed.
LEEDuser overview
LEED is changing all the time, and every project is unique. Even seasoned professionals can miss a critical detail and lose a credit or even a prerequisite at the last minute. Our expert advice guides our LEEDuser Premium members and saves you valuable time.
Already a premium member? Log in now
Credit language
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Choose one of the following options:
|
Slope |
Initial SRI |
OR |
Aged SRI |
---|---|---|---|---|
Low-sloped roof |
≤ 2:12 |
82 |
|
64 |
Steep-sloped roof |
> 2:12 |
39 |
|
32 |
Documentation toolkit
LEEDuser’s Documentation Toolkit is loaded with calculators to help assess credit compliance, tracking spreadsheets for materials, sample templates to help guide your narratives and LEED Online submissions, and examples of actual submissions from certified LEED projects for you to check your work against. To get your plaque, start with the right toolkit.
Already a premium member? Log in now
Addenda
Revise the second sentence of Option 2 to say the following:
"Any roof used to shade or cover parking must (1) have an aged SRI of at least 32 (if aged SRI information is not available..."
Revise the below SS credit intents as follows:
SSp Construction Activity Pollution Prevention
"To reduce pollution from construction activities by controlling soil erosion, waterway sedimentation, and airborne dust that disproportionately impact frontline communities."
SSc Site Assessment
"To assess site conditions, environmental justice concerns, and cultural and social factors, before design to evaluate sustainable options and inform related decisions about site design."
SSc Rainwater Management
"To reduce runoff volume and improve water quality by replicating the natural hydrology and water balance of the site, based on historical conditions and undeveloped ecosystems in the region to avoid contributing to flooding downstream in frontline communities."
SSc Heat Island Reduction
"To minimize inequitable effects on microclimates and human, especially frontline communities, and wildlife habitats by reducing heat islands."
SSc Places of Respite
"To provide patients, all staff, and visitors with the health benefits of the natural environment by creating outdoor places of respite on the healthcare campus."
SSc Direct Exterior Access
"To provide patients, all staff, and visitors with the health benefits of the natural environment by creating outdoor places of respite on the healthcare campus."
For BD+C, revise language under Table 1 to read as follows. For O+M insert the language below under Table 1.
"Roof area that consists of functional, usable spaces (such as helipads, recreation courts, and similar amenity areas) may meet the requirements of nonroof measures. Applicable roof area excludes roof area covered by mechanical equipment, solar energy panels, skylights, and any other appurtenances."
Can v4 projects use typical solar reflectance (SR) values, or data from a previous project, for documentation of hardscape materials?
The following typical SR values can be used for standard nonroof materials, in lieu of project-specific testing data:
Typical Solar Reflectance Values for Standard Nonroof Materials
Gray cement concrete- Initial Solar Reflectance: 0.26, Three-Year Aged Solar Reflectance*: 0.18
White cement concrete- Initial Solar Reflectance: 0.70, Three-Year Aged Solar Reflectance*: 0.35
Asphalt concrete- Initial Solar Reflectance: 0.05, Three-Year Aged Solar Reflectance*: 0.10
*Three-year aged SR values are based on no cleaning.
Alternatively, documentation showing that the current concrete mix and sealant are equivalent to a tested mix and sealant from a previous project is acceptable, provided that all ingredients are the same and have not changed.