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Materials and Resources 1.2 – Building Reuse – Maintain 95% of Existing Walls, Floors, and Roof

Like in the Water Efficiency category, many of the Materials and Resources credits maintain the same intentions and implementations, but additional points may be achieved through higher percentages or higher performance of the intention. MR1.1 and MR1.2 are EXACTLY the same, except you can earn two points by achieving the 95% requirement in MR1.2. Please note that credit MR1.3 should be treated as a separate credit with different means of implementation, as you will see when you get there.

Maintain 95% of Existing Walls, Floors, and Roof

Intention:

  1. Extend the life cycle of existing building stock
  2. Conserve and retain cultural resources
  3. Reduce waste
  4. Reduce environmental impact with regards to manufacturing materials and their transport

Implementation:

  • Reuse existing building structure
  • Exclude:
    • windows
    • doors
    • non-structural material
    • MEP (mechanical, electrical, plumbing)
    • Elevator equipment
    • hazardous material (which should be removed)
  • Includes:
    • Flooring
    • Framing
    • Roof
    • Exterior Structure (envelope)
  • Calculation:
    • USE SQUARE FOOTAGE (sq.ft.)
  • If addition to an existing building is more than 2 times the original, credits 1.1 & 1.2 are not applicable.

Codes/Standards Applied:

  1. none

Extra Credit:

  • none

Submittal Phase:

  • Construction (tip: all Materials and Resources credits are submitted in the construction phase except MR P1)

Links from Reference Guide:

  1. none

Other Materials & Resources Credits

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3 Comments On This Post

  1. Is not an ID credit available for achieving 100% materials reuse?

    Reply
  2. Seems to me that in case you can’t get exactly 100% they allow the extra 5% margin; so essentially 95%=100% in terms of credit.

    Reply
  3. Jonathan-

    All MR credits are eligible for exemplary performance (ID credits) except for MRc1, as you already need to achieve 95% to earn 2 points… next incremental percentage treshold or doubling the requirements and this could not happen… Hope this helps!

    Reply

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