Page 236 - Alternative Energy Systems in Building Design
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212 ENERGY CONSERVATION
also constitutes waste management. The 3 credits awarded under this measure include
1 point for recycling or salvaging a minimum of 50 percent by weight of demolition
materials and 2 points for salvage of 75 percent by weight of the construction and
demolition debris and materials.
Material reuse, credit no. 3 This measure is intended to promote the use of recy-
cled materials, thus reducing the adverse environmental impact caused by manufacturing
and transporting new products. For using recycled materials in a construction, 1 credit is
given to the first 5 percent and a second point for a 10 percent total use. Recycled mate-
rials used could include wall paneling, cabinetry, bricks, construction wood, and even
furniture.
Recycled content, credit no. 4 The intent of this measure is to encourage the
use of products that have been constructed from recycled materials. One credit is given
if 25 percent of the building material contains some sort of recycled material or 40
percent of minimum by weight use of so-called postindustrial material content. A
second point is awarded for an additional 25 percent recycled material use.
Regional materials, credit no. 5 The intent of this measure is to maximize the
use of locally manufactured products, which minimizes transportation and thereby
reduces environmental pollution. One point is awarded if 20 percent of the material is
manufactured within 500 miles of the project, and another point is given if the total
recycled material use reaches 50 percent. Materials used in addition to manufactured
goods also include those that are harvested, such as rock and marble from quarries.
Rapidly renewable materials, credit no. 6 This is an interesting measure that
encourages the use of rapidly renewable natural and manufactured building materials.
Examples of natural materials include strawboards, woolen carpets, bamboo flooring,
cotton-based insulation, and poplar wood. Manufactured products may consist of
linoleum flooring, recycled glass, and concrete as an aggregate. The point weight
awarded for this measure is 1.
Certified wood, credit no. 7 The intent of this measure is to encourage the use
of wood-based materials. One point is credited for the use of wood-based materials
such as structural beams and framing and flooring materials that are certified by Forest
Council Guidelines (FSC).
INDOOR ENVIRONMENTAL QUALITY
Minimum indoor air quality (IAQ) performance, prerequisite no. 1 This pre-
requisite is established to ensure indoor air quality performance to maintain the health and
wellness of the occupants. One credit is awarded for adherence to ASHRAE building
ventilation guidelines such as placement of HVAC intakes away from contaminated air
pollutant sources such as chimneys, smoke stacks, and exhaust vents. The point weight
awarded for this measure is 1.