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1. INTRODUCTION
Green Building materials
• Composed of renewable resources
• Helps in energy conservation
• Offer greater design flexibility
• Improved occupant health and productivity.
• Environmentally responsible
• Reduced maintenance/replacement costs

2. SELECTION CRITERIA
 Resource Efficiency
 Energy Efficiency
 Water Conservation
 Affordability
 Indoor Air quality

3. RESOURCE EFFICIENCY
Following attributes are considered:
o Reused or Recycled content
Eg: reclaimed bricks, Recycled GI steel roof
o Naturally Available and Plentiful
Eg: Certified wood. Woods taken from responsibly managed
forests.
 Basic requirements of credible forest certification programs
include:

4.  Protection of biodiversity, species at risk and wildlife habitat;
sustainable harvest levels; protection of water quality; and
prompt regeneration (e.g., replanting and reforestation).
 Resource efficient manufacturing process: Products
manufactured with resource-efficient processes including
reducing energy consumption, minimizing waste (recycled,
recyclable and or source reduced product packaging), and
reducing greenhouse gases. Eg: Insulated Concrete
 Locally available: Building materials, components, and
systems found locally or regionally saving energy and
resources in transportation to the project site.

5.  Durable: Materials that are longer lasting or are comparable
to conventional products with long life expectancies.eg: Bricks
and stones
 Water Conservation
Eg: Reducing Water Consumption in buildings
 Conserve water in landscaped area
Eg: Xeriscaping is a systematic method of promoting water
conservation in landscaped areas
 Water conserving Products. Eg: Self closing nozzles

6. THREE BASIC STEPS OF PRODUCT SELECTION
 Research
 Evaluation
 Selection

7.  1. Research. This step involves gathering all technical
information to be evaluated, including manufacturers'
information such as:
 Material Safety Data Sheets (MSDS), Indoor Air Quality (IAQ)
test data, product warranties, source material characteristics,
recycled content data, environmental statements, and
durability information.
 Also involve researching other environmental issues, building
codes, government regulations, building industry articles,
model green building product specifications, and other
sources of product data. Research helps identify the full range
of the project’s building material options.

8.  Evaluation. This step involves confirmation of the technical
information, as well as filling in information gaps.
 For example, the evaluator may request product certifications
from manufacturers to help sort out possible exaggerated
environmental product claims.
 Evaluation and assessment is relatively simple when
comparing similar types of building materials using the
environmental criteria.
 For example, a recycled content assessment between various
manufacturers of medium density fiberboard is a relatively
straightforward comparison.

9.  A life cycle assessment (LCA) is an evaluation of the relative
"greenness" of building materials and products. LCA
addresses the impacts of a product through all of its life
stages. Although rather simple in principle, this approach has
been difficult and expensive in actual practice
 One tool that uses the LCA methodology is BEES (Building for
Environmental and Economic Sustainability) software. It
allows users to balance the environmental and economic
performance of building products. The software was
developed by the National Institute of Standards and
Technology's Building and Fire Research Laboratory

10.  Criteria for evaluating building materials include the general
categories of resources, performance and pollution.
 The resources required for a material can be consumed in
extraction, production, use or disposal. The same is true for
pollution.
 Performance refers to the energy and resources it can save
or squander doing its use. For each category of material,
performance means something quite different. For example,
the performance of insulation must be judged mainly in terms
of its thermal resistance, while a floor tile would be evaluated
more for its durability.

11. SELECTION
 Selection. This step often involves the use of an evaluation
matrix for scoring the project-specific environmental criteria.
The total score of each product evaluation will indicate the
product with the highest environmental attributes. Individual
criteria included in the rating system can be weighted to
accommodate project-specific goals and objectives.
 INDOOR AIR QUALITY
 Refers to air quality within and around buildings
 affected by gases like CO, radon, VOCs,
 Particulates, Microbial contaminants like bacteria

12. DETERMINATION
 collection of air samples and subjecting it to
chromatographic techniques
 collection of air samples and subjecting it to
chromatographic techniques and monitoring human exposure
to pollutants
 collection of samples on building surfaces
 computer modelling of air flow inside buildings

13. MATERIAL PROPERTIES THAT ENHANCE
INDOOR-AIR QUALITY
 Low or non-toxic
 Minimal chemical emission
 Moisture resistant
 Systems or equipment
 Using Low V.O.C varities of Adhesives, Caulks and
Finishes enhances indoor air quality
Minimize the need for surface coatings

14. TECHNIQUES
 Provide thermal comfort with a maximum degree of personal
control over temperature and airflow
 Supply adequate levels of ventilation and outside air for
acceptable indoor air quality
 Prevent airborne bacteria, other fungi, radon, through building
envelope design that manages moisture sources from
outside and inside the building
 Use daylighting for ambient lighting wherever feasible.
Supplement natural light with integrated, high-performance
ballasts, lamps, fixtures, and controls.

15.  Control domestic water temperature to avoid temperature
ranges where legionellae grow: keep domestic water
temperatures above 140°F (60°C) in tanks and 122°F (50°C)
at all taps (faucets and showers).
 Design cooling tower and building air intake placement so air
discharged from the cooling tower or evaporative condenser is
not directly brought into the facility's air intake
 Prohibit smoking in all areas of the building. Environmental
Tobacco Smoke (ETS) is a known carcinogen.

16.  minimize noise through the use of sound-absorbing materials,
high sound transmission loss walls, floors, and ceilings, and
equipment sound isolation.
 Create safe, convenient, and secure storage spaces for
housekeeping chemicals
 Control disturbing odors through contaminant isolation and
removal, and by careful selection of cleaning products;

17. ENVELOPE DESIGN

18. SOME EXAMPLES OF GREEN BUILDING MATERIALS AND
THEIR APPLICATIONS
 Pre-cast concrete surfaces with recycled glass
 Floor mats and mat tiles made from recycled rubber
 Bamboo flooring, and cork flooring panels with tongue and
groove
 Wall papers made from recycled wood pulp, stone powder,
and straw
 Solar roofings, Green Concrete,Green Adhesives and Green
Paints