MR Credit 4: Recycled Content 1–2 Points Intent To increase de

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试卷: MR 材料与资源[查看]
MR Credit 4: Recycled Content
1–2 Points

Intent
To increase demand for building products that incorporate recycled content materials, thereby reducing impacts
resulting from extraction and processing of virgin materials.

Requirements
Use materials with recycled content1 such that the sum of postconsumer2 recycled content plus 1/2 of the
preconsumer3 content constitutes at least 10% or 20%, based on cost, of the total value of the materials in the project.
The minimum percentage materials recycled for each point threshold is as follows:
Recycled Content ;Points
10% 1
20% 2
The recycled content value of a material assembly is determined by weight. The recycled fraction of the assembly is
then multiplied by the cost of assembly to determine the recycled content value.
Mechanical, electrical and plumbing components and specialty items such as elevators cannot be included in this
calculation. Include only materials permanently installed in the project. Furniture may be included if it is included
consistently in MR Credit 3: Materials Reuse through MR Credit 7: Certified Wood.

Potential Technologies & Strategies
Establish a project goal for recycled content materials, and identify material suppliers that can achieve this goal.
During construction, ensure that the specified recycled content materials are installed. Consider a range of
environmental, economic and performance attributes when selecting products and materials.

MR C4: 可循环成份含量
1–2分

目的
增加建筑制品中循环材含量，减低对原始材料的采伐和加工。

要求
采用含有循环材1之材料，其消费后2循环材含量加上1/2消费前3循环材含量的总量，在价值上应
至少占工程材料总价值的10%或20%，最低的材料比例与得分标准如下：
循环材含量；得分
10% 1
20% 2
循环材的价值可按成分重量比例乘上材料总价值确定。
机械、电气设备、水管、管件或其它如电梯等专用设备，不能被计入材料回用计算。只有永久
性安装在建筑中的家俱才能被计入，但需与在项目MRC3到MRC7中保持一致。

技术措施和策略
建立工程中使用循环材料的目标，并寻找其供应商，施工中，确保这些循环材料被适用，考虑
一个适当的性能、经济范围来确定这些材料和制品。