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LEED v2009
Core & Shell
Materials and Resources

Building Reuse—Maintain Existing Walls, Floors and Roof

LEED CREDIT

CS-2009 MRc1: Building reuse - maintain existing walls, floors and roof 1-5 points

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Credit language

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Requirements

Maintain the existing building structure (including structural floor and roof decking) and envelope (the exterior skin and framing, excluding window assemblies and nonstructural roofing material). Hazardous materials that are remediated as a part of the project must be excluded from the calculation of the percentage maintained. The minimum percentage building reuse for each point threshold is as follows:

Building Reuse

Points

25%

1

33%

2

42%

3

50%

4

75%

5

If the project includes an addition that is more than 6 times (for Core & Shell) and 2 times (for New Construction and Schools) the square footage of the existing building, this credit is not applicable. See all forum discussions about this credit »

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USGBC logo

© Copyright U.S. Green Building Council, Inc. All rights reserved.

Requirements

Maintain the existing building structure (including structural floor and roof decking) and envelope (the exterior skin and framing, excluding window assemblies and nonstructural roofing material). Hazardous materials that are remediated as a part of the project must be excluded from the calculation of the percentage maintained. The minimum percentage building reuse for each point threshold is as follows:

Building Reuse

Points

25%

1

33%

2

42%

3

50%

4

75%

5

If the project includes an addition that is more than 6 times (for Core & Shell) and 2 times (for New Construction and Schools) the square footage of the existing building, this credit is not applicable.

XX%

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