SS Credit 7.1: Heat Island Effect—Nonroof 1 Point Intent To re

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SS Credit 7.1: Heat Island Effect—Nonroof
1 Point

Intent
To reduce heat islands1 to minimize impacts on microclimates and human and wildlife habitats.

Requirements
OPTION 1
Use any combination of the following strategies for 50% of the site hardscape (including roads, sidewalks,
courtyards and parking lots):
--Provide shade from the existing tree canopy or within 5 years of landscape installation. Landscaping (trees)
must be in place at the time of occupancy.
--Provide shade from structures covered by solar panels that produce energy used to offset some
nonrenewable resource use.
--Provide shade from architectural devices or structures that have a solar reflectance index2 (SRI) of at least 29.
--Use hardscape materials with an SRI of at least 29.
--Use an open-grid pavement system (at least 50% pervious).
OR
OPTION 2
Place a minimum of 50% of parking spaces under cover3. Any roof used to shade or cover parking must have an SRI of at least 29, be a vegetated green roof or be covered by solar panels that produce energy used to offset some nonrenewable resource use.

Potential Technologies & Strategies
Employ strategies, materials and landscaping techniques that reduce the heat absorption of exterior materials. Use shade (calculated on June 21, noon solar time) from native or adapted trees and large shrubs, vegetated trellises or other exterior structures supporting vegetation. Consider using new coatings and integral colorants for asphalt to achieve light-colored surfaces instead of blacktop. Position photovoltaic cells to shade impervious surfaces. Consider replacing constructed surfaces (e.g., roof, roads, sidewalks, etc.) with vegetated surfaces such as vegetated roofs and open grid paving or specify high-albedo materials, such as concrete, to reduce heat absorption.

SSC 7.1: 热岛效应—非屋面部分
1分

目的
降低热岛效应1，减少对区域微气候、人类和野生物种的环境影响。

要求
选项1
在50%的场址硬质铺装地面（包括道路、步道、院落、停车位等），组合实施以下措施：
--采用既有树木提供遮阳，或有五年的地面绿化。绿化（植树）在建筑启用时必须完成。
--利用结构件提供遮阳，如太阳能发电板（它可生产能源替代一些非再生源能源）。
--利用建筑装置或构件进行遮阳，其太阳反射系数(SRI)2至少为29。
--采用的硬质铺装材料，其太阳反射系数(SRI)至少为29。
--采用开放的花格地面铺装(至少50%可透水)。
或者
选项2
50%的停车空间有遮盖3。所有用于遮盖停车空间的屋面或遮盖物，其太阳反射系数(SRI)必须
在29以上、或者是种植屋面、或者被太阳能发电板遮盖。

技术措施和策略
采取各种措施、材料、铺装技术降低室外材料的热吸收，利用树木、灌木和其他室外结构件进
行遮阳(以六月21日进行计算，非夏时制)。采用新型涂层和彩色屋面材料，以提高反射率，或
太阳能装着安装为可提供遮阳。
可考虑用种植面层，如种植屋面、开发地面花格、高反射材料（如混凝土）等，替代构筑表面
（如屋顶、道路、步道等）。