4.0
Materials and Resources
(Continued)
Local/Regional Materials (2)
4.C5
Intent:
Increase demand for building products that are manufactured locally, reducing the environmental impacts
resulting from transportation, and supporting the local economy.
Requirement:
Specify a minimum of 20% of building materials that are manufactured regionally within a radius of 500
1
miles.
Of these regionally manufactured materials, specify a minimum of 50% that are extracted, harvested, or
1
recovered within 500 miles.
Technologies
Specify and install regionally extracted, harvested, and manufactured building materials. Contact the state and
/Strategies:
local waste management boards for information about regional building materials. See the LEED Reference
Guide for calculation methodology guidelines. Determine percentages in terms of dollar value using the following
steps:
1. Calculate total dollars (see exclusions) of material that is locally or regionally manufactured.
2. Calculate total dollars (see exclusions) of all building materials.
3. Divide Step 1 by Step 2 to determine the percentage.
Exclusions: Labor costs; all mechanical and electrical material and labor costs; project overhead and fees.
Rapidly Renewable Materials (2)
4.C6
Intent:
Reduce the use and depletion of finite raw and long cycle renewable materials by replacing them with rapidly
renewable materials.
Requirement:
Specify rapidly renewable building materials for 5% of total building materials.
1
Technologies
Rapidly renewable resources are those materials that substantially replenish them-selves faster than traditional
/Strategies:
extraction demand (e.g. planted and harvested in less than a 10 year cycle) and do not result in significant
biodiversity loss, increase erosion, air quality impacts, and that are sustainably managed. See the LEED
Reference Guide for calculation methodology guidelines. Determine percentages in terms of dollar value using
the following steps:
1. Calculate total dollars (see exclusions) of materials that are considered to be rapidly renewable.
2. Calculate total dollars (see exclusions) of all building materials.
3. Divide Step 1 by Step 2 to determine the percentage.
Exclusions: Labor costs; all mechanical and electrical material and labor costs; project overhead and fees.
Certified Wood (2)
4.C7
Intent:
Encourage environmentally responsible forest management.
Requirement:
Use a minimum of 50% of wood-based materials certified in accordance with the Forest Stewardship Council
1
guidelines for wood building components including but not limited to framing, flooring, finishes, furnishings,
and non-rented temporary construction applications such as bracing, concrete form work and pedestrian
barriers.
Technologies
Refer to the Forest Stewardship Council guidelines for wood building components that qualify for compliance to
/Strategies:
the requirements and incorporate into material selection for the project.
(2)
U. S. Green Building Council. Used by permission.
Sustainable Project Rating Tool (SPiRiT) v.1.4.1
June 2002
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