Leed Mr - Requirements And Crazy Hard Questions

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MR

What are the requirements of MRc7

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MR Credit 7: Certified Wood

Use a minimum of 50% of wood-based materials and products, which are certified in accordance
with the Forest Stewardship Council’s (FSC) Principles and Criteria, for wood building
components. These components include, but are not limited to, structural framing and general
dimensional framing, flooring, sub-flooring, wood doors and finishes.
Only include materials permanently installed in the project. Furniture may be included, providing
it is included consistently in MR Credits 3–7.

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MR

What are the requirements of MRc6

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MR Credit 6: Rapidly Renewable Materials

Use rapidly renewable building materials and products (made from plants that are typically
harvested within a ten-year cycle or shorter) for 2.5% of the total value of all building materials
and products used in the project, based on cost.

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MR

What are the requirements of MRc5.2

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MR Credit 5.2: Regional Materials: 20% Extracted, Processed &
Manufactured Regionally

Use building materials or products that have been extracted, harvested or recovered, as well as
manufactured, within 500 miles of the project site for an additional 10% beyond MR Credit 5.1
(total of 20%, based on cost) of the total materials value. If only a fraction of the material is
extracted/harvested/recovered and manufactured locally, then only that percentage (by weight)
shall contribute to the regional value.

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MR

What are the requirements of MRc5.1

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MR Credit 5.1: Regional Materials: 10% Extracted, Processed &
Manufactured Regionally

Use building materials or products that have been extracted, harvested or recovered, as well as
manufactured, within 500 miles of the project site for a minimum of 10% (based on cost) of the
total materials value. If only a fraction of a product or material is extracted/harvested/recovered
and manufactured locally, then only that percentage (by weight) shall contribute to the regional
value.
Mechanical, electrical and plumbing components and specialty items such as elevators and
equipment shall not be included in this calculation. Only include materials permanently installed
in the project. Furniture may be included, providing it is included consistently in MR Credits 3–
7.

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MR

What are the requirements of MRc4.2

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MR Credit 4.2: Recycled Content: 20% (post-consumer + 1/2
pre-consumer)

Use materials with recycled content such that the sum of post-consumer recycled content plus
one-half of the pre-consumer content constitutes an additional 10% beyond MR Credit 4.1 (total
of 20%, based on cost) of the total value of the materials in the project.
The recycled content value of a material assembly shall be determined by weight. The recycled
fraction of the assembly is then multiplied by the cost of assembly to determine the recycled
content value.

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MR

What are the requirements of MRc4.1

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MR Credit 4.1: Recycled Content: 10% (post-consumer + 1/2
pre-consumer)

Use materials with recycled content such that the sum of post-consumer recycled content plus
one-half of the pre-consumer content constitutes at least 10% (based on cost) of the total value of
the materials in the project.
The recycled content value of a material assembly shall be determined by weight. The recycled
fraction of the assembly is then multiplied by the cost of assembly to determine the recycled
content value.

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MR

What are the requirements of MRc3.2

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MR Credit 3.2: Materials Reuse: 10%

Use salvaged, refurbished or reused materials for an additional 5% beyond MR Credit 3.1 (10%
total, based on cost).
Mechanical, electrical and plumbing components and specialty items such as elevators and
equipment shall not be included in this calculation. Only include materials permanently installed
in the project. Furniture may be included, providing it is included consistently in MR Credits 3–
7.

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MR

What are the requirements of MRc3.1

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MR Credit 3.1: Materials Reuse: 5%

Use salvaged, refurbished or reused materials such that the sum of these materials constitutes at
least 5%, based on cost, of the total value of materials on the project.
Mechanical, electrical and plumbing components and specialty items such as elevators and
equipment shall not be included in this calculation. Only include materials permanently installed
in the project. Furniture may be included, providing it is included consistently in MR Credits 3–
7.

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MR

What are the requirements of MRc2.2

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MR Credit 2.2: Construction Waste Management: Divert 75%
From Disposal

Recycle and/or salvage an additional 25% beyond MR Credit 2.1 (75% total) of non-hazardous
construction and demolition debris. Excavated soil and land-clearing debris do not contribute to
this credit. Calculations can be done by weight or volume, but must be consistent throughout.

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MR

What are the requirements of MRc2.1

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MR Credit 2.1: Construction Waste Management: Divert 50%
From Disposal

Recycle and/or salvage at least 50% of non-hazardous construction and demolition debris.
Develop and implement a construction waste management plan that, at a minimum, identifies the
materials to be diverted from disposal and whether the materials will be sorted on-site or comingled.
Excavated soil and land-clearing debris do not contribute to this credit. Calculations can
be done by weight or volume, but must be consistent throughout.

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MR

What are the requirements of MRc1.3

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MR Credit 1.3: Building Reuse: Maintain 50% of Interior Non-
Structural Elements

Use existing interior non-structural elements (interior walls, doors, floor coverings and ceiling
systems) in at least 50% (by area) of the completed building (including additions). If the project
includes an addition to an existing building, this credit is not applicable if the square footage of
the addition is more than 2 times the square footage of the existing building.

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MR

What are the requirements of MRc1.2

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MR Credit 1.2: Building Reuse - Maintain 95% of Existing Walls,
Floors & Roof

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MR

What are the requirements of MRc1.1

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MR Credit 1.1: Building Reuse: Maintain 75% of Existing Walls,
Floors & Roof

Maintain at least 75% (based on surface area) of existing building structure (including structural
floor and roof decking) and envelope (exterior skin and framing, excluding window assemblies
and non-structural roofing material). Hazardous materials that are remediated as a part of the
project scope shall be excluded from the calculation of the percentage maintained. If the project
includes an addition to an existing building, this credit is not applicable if the square footage of
the addition is more than 2 times the square footage of the existing building.

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MR

What are the requirements of MRp1

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MR Prerequisite 1: Storage & Collection of Recyclables

Provide an easily accessible area that serves the entire building and is dedicated to the collection
and storage of non-hazardous materials for recycling, including (at a minimum) paper, corrugated
cardboard, glass, plastics and metals.