Credit Category 3: Sustainable Sites
What is the intent of the Sustainable Sites Credit Category?
-reward decisions about environment surrounding the building with credits that emphasize the virtual relationships among buildings, ecosystems and ecosystem services
What is the intent of the Construction Activity Pollution Prevention Prerequisite?
reduce pollution from construction activities by controlling soil erosion, sedimentation and airborne dust
What are the requirements for the Construction Activity Pollution Prevention Prerequisite?
-create and implement soil erosion and sedimentation control plan for all construction activities that meets either
1.)2012 EPA Construction General Permit
2.)Local erosion and sedimentation codes
What are some technologies available to achieve the Construction Activity Pollution Prevention Prerequisite?
-temporary or permanent seeding
-mulching
-dikes
-silt fences
-sediment traps/basins
What is the intent of the Site Assessment Credit?
assess site condition before design to evaluate sustainable options and inform related decisions
What are the requirements of the Site Assessment credit?
complete site survey including:
-topography
-hydrology
-climate
-vegetation
-soils
-human use
-human health effects
What is the intent of the Protect/Restore Habitat credit?
conserve existing natural areas and restore damaged areas to provide habitat and promote biodiversity
What are the 2 options of requirements for the Protect/Restore Habitat credit?
-preserve and protect construction activity on 40% of the greenfield area on site
1.)On site restoration: native vegetation, restore 30% of all portions of site identified as previously developed
2.)Financial support: provide financial support to at least $.4/sq ft for total site area. Must be a nationally or locally land trust/ conservation org. within same EPA region
What is the intent of the Open Space credit?
create exterior open space that encourages interaction with environment, social, recreational and physical activity
What are the requirements for the Open Space credit?
-provide outdoor space >=30% total site
-minimum 25% must be vegetated or have overhead vegetated canopy
-pedestrian oriented paving for social activity
-rec-oriented paving for physical activity
-garden space for year-round visual interest
-garden space for community/urban food production
-preserve/created habitat meets criteria of SS Credit Site Development
What is the intent of the Rainwater MGMT credit?
Reduce runoff and improve water quality by replicating natural hydrology and water balance of site based on historical conditions
What are the requirements of the Rainwater MGMT credit?
1.)Percentile of Rainfall Events
2.)Natural land cover
What are the different paths used in the Percentile of Rainfall Events requirement under the Rainwater MGMT credit?
Path 1.) 95th percentile (3pts, 2HC)
-manage on site the runoff from developed site for 95th percentile of regional or local rainfall events using low impact development and green infrastructure
Path 2.) 98th percentile (3pts, 2HC)
Path 3.)zero lot line projects only
-urban areas minimum density 1.5 far
-manage runoff from developed site for 85th percentile of regional or local rainfall
What is the intent of the Heat Island Reduction credit?
minimize effects on microclimate and human and wildlife habitats by reducing heat islands
What are the 2 requirement options for the Heat Island Effect?
1.)Nonroof and roof (2pts, 1 HC)
-combo of:
-nonroof: plants, shade structures with high SRI, vegetated structures, high SRI paving materials, open grid paving
-high reflectance roof: SRI for a low sloped roof must be an 82 or 64 after 3 years. Steep slope must be a 39 or 32 after 3 years
-vegetated roof
Option 2.) Parking under cover
-minimum 75% parking under cover
-any roof used must have 3 yr SRI of 32, use materials w/ initial SRI of 39
-be vegetated
-or be covered with RE generation systems
Heat island
difference in thermal gradient between developed areas
Heat island effect
absorption of heat by hardscapes such as dark, non-reflective pavement and buildings
Albedo/Reflectance
ability of a surface to reflect sunlight on a scale of 0-1 with 0 being the least reflective and 1 being the most
Emissivity
ratio of radiation emitted by a surface to radiation of a blackbody at same temperature
-measured on a scale of 0-1 with 0 being the most reflective and 1 being the blackbody
Emittance
ability of a surface to shed thermal radiation on a scale of 0-1 with 0 being the least and 1 being perfect emitter
Solar Reflectance Index (SRI)
Ability of a surface to reject solar heat on a scale of 0-100. Higher the rating, the better it is at rejecting solar heat. It is a combo of reflectance and emittance
What is the intent of the Light pollution Reduction credit?
increase night sky access, visibility and reduce consequences of development for wildlife and people
What are the requirements of the Light Pollution Reduction credit?
-meet uplight and trespass requirements by using backlight-uplight-glare (BUG) method
-do not exceed given % of total lumens emitted above horizontal
What is light trespass and BUG?
BUG: backlight-uplight-glare
-do not exceed given luinaires backlight and glare ratings (based on a light source installed in lumenaires) as defined in TM-15-11 Adendum A based on mounting location and distance from lighting boundary
-do not exceed given vertical illuminances at lighting boundary
What is the intent of the Tenant Design and Construction Guidelines credit and which rating system is it used in?
-used only in C+S
-educate tenants in implementing sustainable design and construction features in their tenant improvement build-outs
What are the requirements of the Tenant Design and Construction Guidelines credit?
Publish illustrated doc including
-description of sustainable features, goals, objectives in project
-recommendations of sustainable strategies, products, materials and services
-info that enables a tenant to coordinate space design and construction with building systems
What is the intent of the Site Master Plan for Schools credit?
-ensure sustainable site benefits are being achieved by project regardless of future changes
What are the requirements for the Site Master Plan for Schools credit?
-achieve 4/6 credits and use associated calc methods
LT: High priority site
SS: site development
SS: open space
SS: rainwater mgmt
SS: heat island reduction
SS: light pollution reduction
What is the intent of Joint Use of Facilities in Schools credit?
– integrate school with community by sharing building and its playing fields for non-school events
What are the 3 ways to meet the requirements for the Joint Use of Facilities in Schools credit?
1.) make at least 3 spaces available for public use or provide access to toilets after normal school hours
2.)contract with community or other organizations to provide at least 2 types dedicated use spaces in building
3.)2 spaces are owned by other organizations and are accessible to students
What is the intent of the Place of Respite for Healthcare credit?
provide patients, staff and visitors with health benefits of the national environment by creating outdoor places of respite
What are the requiremtns for the Place of Respite credit?
places accessible to patients and visitors are 5% of net usable program area. Additional area to staff for 2%
-must be outdoors with up to 30% indoors if inside greehouses or solarium
-accessible within 200ft of entrance
-located where no medical intervention is delivered
-options for shade and direct sun with at least 1 seat/200ft2
-therapy unavailable to all buildings must make up <=50%
-universal access trails <=30%
-min 25% vegetated space
-not within 25ft of smoking area
What is the intent of direct exterior access credit?
-provide patients with health benefits associated to access with environment
What are the requirements for the direct exterior access credit?
access to exterior courtyard, terrace, garden or balcony
-5ft per patient for 75% of all inpatients and 75% of qualifying outpatients whose stay exceeds 4hrs
What constitutes “open space”
project property-development footprint
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