CHAPTER 8 - MATERIALS AND RESOURCES (MR) Flashcards
(39 cards)
Construction and demolition debris account for________of our total solid
waste stream
40%
focuses on the life cycle impacts of materials
selected for the project, and the amount of material diverted from the
landfill. LEED promotes the selection of sustainable materials and the
reduction of waste produced from the construction, operation and
demolition of buildings.
MATERIALS AND RESOURCES (MR)
This includes its extraction, processing,
transportation, use and disposal. LEED promotes reusing or recycling a
product at the end of its life as opposed to disposing of it, known as the
cradle to cradle approach. LEED also wants to serve as a market
mover and ensure all products go through and LCA.
Life Cycle Impacts
LEED encourages the use of sustainable materials
through this category. It determines the types of materials that should
be considered for a high performance building and how to reduce the
life- cycle impacts of these materials.
____should specify where items are sourced from during construction and
operation of the building. Third party certification of sustainable
products is essential in materials selection.
Purchasing Policies
The preferred waste management strategies described by the U.S. Environmental Protection Agency (EPA) are
source reduction, reuse, recycling and recovery. Material reuse or
recycling are forms of waste diversion from landfills or incineration
works as well.
Waste reduction
the practice of designing, manufacturing, purchasing, or using
materials in ways that reduce the amount of unnecessary materials in the
building.
Source Reduction
stops waste at its source because it delays or avoids that item’s entry into
the waste collection and disposal system.
Reuse
converts materials that would otherwise become waste into valuable
resources.
Recycling
Either proper recycling and composting of materials or
waste-to-energy plants such as incineration.
Recovery
Credit metrics and cost calculations:
Each credit is based on material
area, weight or cost. A material baseline is established using the actual
material cost OR ___________
45% of the total construction costs, including labor
and equipment.
This prerequisite reduces the amount of landfill bound waste produced by the building occupants.
An easily accessible and a dedicated area for the collection and storage of materials for recycling must be provided for the entire building.
STORAGE AND COLLECTION OF RECYCLABLES – MRP1
It can be recycled or separated on site. Materials to be recycled must include, at a minimum
paper, corrugated
cardboard, glass, plastics and metals
The project must also
recycle 2 of
Batteries, electronics or mercury containing
lamps.
The intent of this credit is to reduce construction and
demolition waste disposed of in landfills and incineration
facilities by recovering, reusing, and recycling materials.
CONSTRUCTION AND DEMOLITION WASTE MANAGEMENT – MRP2 +
MRC5
Requirements of this credit are to recycle and/or salvage
nonhazardous construction and demolition debris through
the development and implementation of a ________________
construction waste management plan.
The construction waste management plan must:
1. Identify and establish waste diversion goals for ________________(structural
and non-structural)
2. Specify whether materials will be separated or commingled and where they will
eventually be recycled or even donated
3. Provide major waste streams and diversion rates
at least five materials
are based on volume/weight
salvaged/recycled over total waste produced. These calculations exclude excavated soil, land-clearing debris,
and alternative daily cover (ADC).
Waste diversion rates
There are 2 options to earn points:
1 – Diversion into multiple waste streams
Calculated by weight or volume as a percentage of total waste
2 – Reduction of Total waste material (Source Reduction)
- Maximum of 2.5 pounds of construction waste / square
foot of buildings floor area
This credit awards points for adaptive reuse of existing
building resources (if it is a previously developed site) or by
reducing materials use through life cycle analysis.
BUILDING LIFE-CYCLE IMPACT REDUCTION – MRC1
is the renovation of a space for a purpose different
from the original.
Adapted
reuse
There are 4 options for credit compliance:
-Maintain the existing building structure, envelope, and interior non-structural elements of a historic building or contributing building in a historic
district. To qualify, the building or historic district must be listed or eligible for listing in the local, state, or national register of historic places.
Historic Building (5 points)
There are 4 options for credit compliance:
-Maintain 50% of surface area of existing building o 25% of damaged area may be excluded
Abandoned or Blighted Building (5 points)
There are 4 options for credit compliance:
-Reuse or salvage building materials from off site or on site as a percentage of the surface area.
Exclude window assemblies and hazardous materials + Cannot count materials in this credit to
MRc2
Building and Material Reuse (2 - 4 points)
There are 4 options for credit compliance:
-Model a baseline building (ISO 14044) and
compare design case
● 10% reduction of 3 of the following impact
categories:
1. Global warming potential (greenhouse gases), in CO2e;
2. Depletion of the stratospheric ozone layer, in kg CFC-11;
3. Acidification of land and water sources, in moles H+ or kg SO2;
4. Eutrophication, in kg nitrogen or kg phosphate;
5. Formation of tropospheric ozone, in kg NOx or kg ethene; and
6. Depletion of non-renewable energy resources, in MJ.
Building Life-Cycle Impact Reduction – New
Construction (3 points)
