Green Building Construction - Module 4 - Green Building Materials and Indoor Environmental Quality

In this presentation, the following topics have been discussed:
1. Sustainable building materials
2. Use of certified green building materials, products & equipment
3. Segregation of waste, organic waste management and handling of waste materials
4. Fresh air ventilation
5. CO2 monitoring
6. Day lighting
7. Minimizing of indoor and outdoor pollutants
8. Low-emitting materials
9. Occupant well-being facilities
10 .Indoor air quality testing, after construction and before occupancy
11. Indoor air quality management

1. DLOC-4
GREEN BUILDING
CONSTRUCTIONS

Module No. 4
Green Building Materials and
Indoor Environmental Quality


-Dr. Rohan Dasgupta

2. 2
Green
Building
Materials

3. Reference:
3

4. BUILDING MATERIALS AND RESOURCES (16 points)
4
BMR Mandatory Requirement 1 - Segregation of Waste, Post-occupancy
BMR Credit 1 - Sustainable Building Materials (8 points)
BMR Credit 2 - Organic Waste Management, Post-occupancy (2 points)
BMR Credit 3 - Handling of Waste Materials, During Construction (1 point)
BMR Credit 4 - Use of Certified Green Building Materials, Products & Equipment (5 points)

5. 5

6. BMR Mandatory Requirement 1 - Segregation of Waste,
Post-occupancy
6
●Intent
○Facilitate segregation of waste at source to encourage
reuse or recycling of materials, thereby avoiding waste
being sent to landfills.
●Compliance Options:
○Building-level Facility
■Provide separate bins to collect dry waste (paper,
plastic, metals, glass, etc.,) and wet waste (organic),
at all the floors and common areas of the building, as
applicable. Divert the collected waste to a centralised
facility, which is easily accessible for hauling.

7. BMR Mandatory Requirement 1 - Segregation of Waste,
Post-occupancy
7
●Compliance Options:
○Central Facility
■In addition to dry and wet waste bins, provide separate bins for safe disposal of
the following hazardous waste, at the centralised facility:
●Batteries
●‘e’ waste
●Lamps
●Medical waste, if any

○Note: The project has to follow the Hazardous Waste Management Guidelines as
prescribed by the Ministry of Environment & Forest (MoEF), Government of India.

8. 8
Source: GreenSutra

9. BMR Credit 2 - Organic Waste Management,
Post-occupancy (1-2 points)
9
●Intent
○Ensure effective organic waste management, so as to avoid domestic waste being
sent to landfills and to improve sanitation and health.
●Compliance Options:
○Install an on-site waste treatment system for handling at least 50% of the organic
(kitchen) waste generated in the building (including tenant-occupied areas). The
generated manure or bio-gas shall be utilised as appropriate.
○Points are awarded as below:

10. BMR Credit 2 - Organic Waste Management,
Post-occupancy (1-2 points)
10
●Notes
○For calculation, food waste can be considered as 0.1 kg per person per day (i.e. 0.1
kg/ person/day) or as prescribed by the local byelaw, whichever is more stringent.
○If the project is having an organic waste convertor in an enclosed room, then design
such area with exhaust system, self-closing door, deck-to-deck partition/ hard ceiling.

11. BMR Credit 3 - Handling of Waste Materials, During
Construction (1 point)
11
●Intent
○Facilitate segregation of construction and demolition waste at source to encourage
reuse or recycling of materials, thereby avoiding waste being sent to landfills.
●Compliance Options:
○Demonstrate that at least 75% of waste generated during construction (as per owner /
developer’s scope) is diverted from landfills, for reuse or recycling. Use consistent
metrics, either weight or volume, to show compliance.
●Notes
○Construction waste here refers to civil & interior building waste.
○Excavated earth & stones should not be considered under this credit, as these are
natural resources.
○Temporary materials such as materials used for formwork, scaffolding, etc., shall not
be considered for this credit calculation.

12. BUILDING MATERIALS AND RESOURCES (16 points)
12
BMR Mandatory Requirement 1 - Segregation of Waste, Post-occupancy
BMR Credit 1 - Sustainable Building Materials (8 points)
BMR Credit 2 - Organic Waste Management, Post-occupancy (2 points)
BMR Credit 3 - Handling of Waste Materials, During Construction (1 point)
BMR Credit 4 - Use of Certified Green Building Materials, Products & Equipment (5 points)

13. Green Building Materials
●Environmentally responsible & Sustainable
●Resource efficient
●Energy efficient
●Low toxicity
●Durable
●Recyclable
13

14. Which of these are
green building materials?
14
Photo courtesy: indiamart.com

15. Greenwashing
●Unethical tactic practiced by many brands
●Deceive consumers to believe that their products are “green”
●Using environmental imagery in advertisements
●Using misleading labels on package
●Overstating “green” practices
●Hiding tradeoffs
15
Reference: investopedia.net

16. Ecolabelling
●Method of environmental performance certification
●Provides eco-labels to products within specific category
●Based on life cycle considerations
●Voluntary in nature
●Third party program
●Global Ecolabelling Network (GEN) - 29 ecolabels, 60 countries
16
Reference & image courtesy: globalecolabelling.net

17. GreenPro
●Eco-label by The Confederation of Indian Industry (CII)
●Accredited by Global Ecolabelling Network (GEN)
●Supported by Indian Green Building Council (IGBC)
●197 companies
●32 product categories
●5934 eco-labelled products
17
Reference & image courtesy: ciigreenpro.com

18. GreenPro - Benefits for Users
●Time & energy saved in doing due diligence
○Performance of product is assured
○Ensures products are non-toxic & non-hazardous
○Guarantees reduced product consumption
○Confirms environmental friendliness
●Direct credits in IGBC rating systems
18
Reference: ciigreenpro.com

19. GreenPro - Benefits for Manufacturers
●Differentiates the product from the competition
●Increases the market reach
●Easier to convince the specifiers, consultants & users
●Enhances resource efficiency during the manufacturing
●Acts as a driver for achieving environment excellence
●Enables innovation
19
Reference: ciigreenpro.com

20. GreenPro - 32 Product Categories
20
Reference: ciigreenpro.com
●Architectural Products
●Boards, panels, false ceiling & plaster
●Carpet tiles
●Cement
●Cleaning product technologies
●Construction & demolition waste products
●Construction aggregates
●Construction blocks
●Construction chemicals
●Consumer products
●Cooling towers
●Copper tubes
●Door and windows
●Furniture
●GGBS
●Health & Wellbeing products
●High performance glass
●Innovative technologies
●Insulation
●Laminates
●Paints & coats
●Pipes
●Plumbing fixtures
●Ready mix concrete
●Ready mix plaster
●Roofing sheets
●Solar PV module
●Steel Rebars for RCC
●Structural Steels
●Tiles
●Ventilation Fans
●Wastewater Treatment

21. GreenPro - Ready Mix Concrete
21
Credit Criteria Points
1 Product Design 5
2 Concrete Performance 20
3 Raw Materials 30
4 CO2 Emission per tonne 10
5 Manufacturing Process 25
6 Process Stewardship 5
7 Innovation 5
TOTAL 100
●Minimum points required to be
certified as “green product” is 50
●Validity: 2 years
●Review: yearly

22. GreenPro - Ready Mix Concrete
●Detailed Credit System:
https://ciigreenpro.com/user-assets/img/uploads/pdfs/
12%20GreenPro%20Standard%20for%20Ready%20Mix%
20Concrete%20-%20Version%201.pdf
22

23. Review of Literature
Jitendra and Khed (2020) have conducted an experimental study on mechanical and durability
characteristics of concrete block where they have replaced cement by 50% and sand by
foundry sand by 15%. They had performed compression strength test for 7 days and 28 days
and they determined durability, by performing chloride ion penetration test and water
absorption test. They made 13 mix proportions where they have taken fly ash as 50% for all
mixed and have varied the proportion of foundry sand from 5 % to 15%. They have got
maximum mechanical strength and durability value for the concrete mix where fly ash was
50% and foundry sand was 15 %. From the results they have concluded that as percentage of
foundry dust is increased, strength properties also increase.
23

24. Assigning Credit Points to Literature
Jitendra and Khed (2020) have conducted an experimental study on mechanical and durability
characteristics of concrete block where they have replaced cement by 50% and sand by
foundry sand by 15%. They had performed compression strength test for 7 days and 28 days
and they determined durability, by performing chloride ion penetration test and water
absorption test. They made 13 mix proportions where they have taken fly ash as 50% for all
mixed and have varied the proportion of foundry sand from 5 % to 15%. They have got
maximum mechanical strength and durability value for the concrete mix where fly ash was
50% and foundry sand was 15 %. From the results they have concluded that as percentage of
foundry dust is increased, strength properties also increase.

Credit 2.3.1. Replacement of OPC with fly ash > 45 ≤ 50% →
15 credit points
24

25. 25
Identification of Appropriate
Literature for particular Use Case
Author(s) Year Credit Nos. Credit PointsTotal Credit Points
ABC & XYZ 2020 2.3.1 & 3.4.2 15 + 5 20
PQR et. al. 2021 2.3.1 & 3.4.2 10 + 5 15
…
…

26. Testing in NABL Accredited Labs only
●National Accreditation Board for Testing and Calibration
Laboratories
●According to the specified standards
●Produce test certificates with test results
●In absence of NABL, especially for foreign
manufacturers, ILAC or APLAC accredited labs are
preferred
●Special case: NABL accredited laboratory owned by the
product manufacturer
26

27. What after testing?
●Startup - Incubation
○Be a manufacturer
○Incubate in college
○Raise money from investors etc…

●Patent - Copyright
○Get a patent or a copyright (whichever is suitable)
○Sell the rights to existing manufacturers
○Earn in royalties
27

28. Process of GreenPro Certification
28

29. Process of GreenPro Certification
29

30. Which other GreenPro Product
Categories can we work on?
30
Reference: ciigreenpro.com
●Architectural Products
●Boards, panels, false ceiling & plaster
●Carpet tiles
●Cement
●Cleaning product technologies
●Construction & demolition waste products
●Construction aggregates
●Construction blocks
●Construction chemicals
●Consumer products
●Cooling towers
●Copper tubes
●Door and windows
●Furniture
●GGBS
●Health & Wellbeing products
●High performance glass
●Innovative technologies
●Insulation
●Laminates
●Paints & coats
●Pipes
●Plumbing fixtures
●Ready mix concrete
●Ready mix plaster
●Roofing sheets
●Solar PV module
●Steel Rebars for RCC
●Structural Steels
●Tiles
●Ventilation Fans
●Wastewater Treatment

31. BUILDING MATERIALS AND RESOURCES (16 points)
31
BMR Mandatory Requirement 1 - Segregation of Waste, Post-occupancy
BMR Credit 1 - Sustainable Building Materials (8 points)
BMR Credit 2 - Organic Waste Management, Post-occupancy (2 points)
BMR Credit 3 - Handling of Waste Materials, During Construction (1 point)
BMR Credit 4 - Use of Certified Green Building Materials, Products & Equipment (5 points)

32. BMR Credit 1 - Sustainable Building Materials (8 points)
32
●Intent
○Encourage the use of building materials to reduce dependence on materials that have
associated negative environmental impacts.
●Compliance Options:
○1. Building Reuse:
■Ensure at least 50% (by area) of the structural and/or at least 25% (by area) of
the non-structural (interiors) elements of the existing building are retained.
■Points are awarded as below:

33. BMR Credit 1 - Sustainable Building Materials (8 points)
33
●Notes
○Building reuse is applicable only to those projects which extend the life of building by
retaining the structural and non-structural (interiors) elements of the existing building
after its life span.
○Structural elements include, columns, beams, floor slabs, exterior walls, structural
glazing, etc.,
○Non-structural (interiors) elements include, interior walls, ceiling, flooring materials,
doors, windows, etc.,

34. BMR Credit 1 - Sustainable Building Materials (8 points)
34
●Compliance Options:
○2. Reuse of Salvaged Materials: (1-2 Points)
■Ensure at least 2.5% of the total building materials (by cost) used in the building
(as per owner / developer’s scope) are salvaged or reused or refurbished.
■Points are awarded as below:

35. BMR Credit 1 - Sustainable Building Materials (8 points)
35
●Notes
○Salvaged or reused materials are buildings materials recovered from existing buildings
or construction sites and reused. Common salvaged materials include furniture, doors,
cabinetry, brick and tiles.
○Refurbished materials are products that could have been disposed of as solid waste.
○These products have completed their life cycle as consumer items and are then
refurbished for reuse without substantial alteration of their form.
○Refurbishing includes renovating, repairing, restoring, or generally improving the
appearance, performance, quality, functionality, or value of a product.
○Excavated earth & stones shall not be considered under ‘Reuse of Salvaged Materials,
as these are natural resources.

36. BMR Credit 1 - Sustainable Building Materials (8 points)
36
●Compliance Options:
○3. Materials with Recycled Content: (1-2 Points)
■Use materials with recycled content in the building (as per owner / developer’s
scope) such that the total recycled content constitutes at least 10% of the total
cost of building materials.
■Points are awarded as below:

37. BMR Credit 1 - Sustainable Building Materials (8 points)
37
●Notes
○Recycled Content is the content in a material or product derived from recycled
materials versus virgin materials. Recycled content can be materials from recycling
programs (post-consumer) or waste materials from the production process or an
industrial/agricultural source (pre-consumer or post-industrial).
○Materials (with recycled content) that are certified by CII under Green Product
Certification Programme (GreenPro) or by a third party agency approved by IGBC can
be used by the project to show compliance.

38. BMR Credit 1 - Sustainable Building Materials (8 points)
38
●Compliance Options:
○4. Local Materials: (1-2 Points)
■Ensure at least 20% of the total building materials (by cost) used in the building
(as per owner / developer’s scope) are manufactured locally within a distance of
400 km.
■Points are awarded as below:

39. BMR Credit 1 - Sustainable Building Materials (8 points)
39
●Notes
○Local Materials are those which are manufactured within a distance of 400 km.
Assembly of building materials shall not be considered.
○Extraction and processing of raw materials need not be considered as part of this
credit calculation.
○Local Materials that are certified by CII under Green Product Certification Programme
○(GreenPro) or by a third party agency approved by IGBC can be used by the project to
show compliance.

40. BMR Credit 1 - Sustainable Building Materials (8 points)
40
●Compliance Options:
○5. Wood Based Materials: (1-2 Points)
■Ensure at least 50% of all new wood based materials (by cost) used in the
building (as per owner / developer’s scope) are:
■Rapidly renewable
(And / Or)
■Wood certified by Forest Stewardship Council (FSC) or Programme for the
Endorsement of Forest Certification (PEFC) or equivalent.
■Points are awarded as below:

41. BMR Credit 1 - Sustainable Building Materials (8 points)
41
●Notes
○Rapidly renewable materials are agricultural products that take 10 years or less to
harvest.
○Certified wood shall be compliant with Forest Stewardship Council (FSC) or
Programme for the Endorsement of Forest Certification (PEFC) or equivalent system.
For a list of certified wood suppliers and product manufacturers, visit the official
website of respective certification bodies.
○Salvaged wood based materials shall not be considered under ‘Wood Based materials’
calculations.
○Wood based Materials that are certified by CII under Green Product Certification
Programme (GreenPro) or by a third party agency approved by IGBC can be used by
the project to show compliance.

42. BMR Credit 1 - Sustainable Building Materials (8 points)
42
●General Notes
○Building materials here refer to civil & interior materials.
○Material Cost = Total Cost - (Labour Cost + Installation Cost).
○If Labour and Installation Cost is not known, the default material cost should be
considered as 60% of the total cost of the material.
○The cost of electrical, mechanical & plumbing - equipment, systems & appliances,
○and movable materials & furniture shall not be considered in the total material cost.
○Temporary materials such as materials used for formwork, scaffolding, etc., should
not be considered for this credit calculation.

43. BMR Credit 1 - Sustainable Building Materials (8 points)
43
●Exemplary Performance
○The criteria listed below are eligible for exemplary performance under ID Credit 1 -
Innovation in Design Process:
■Retention of at least 75% of the structural elements and / or atleast 50% of
non-structural elements (by area) of the existing building.
■Reuse of Salvaged Materials by at least 7.5% of total building materials (by cost).
■Use of Materials with Recycled Content by at least 30% of total building material
(by cost).
■Use of Local Materials by at least 40% of total building materials (by cost).
■Use of Rapidly renewable and/ or Certified wood for at least 95% of all wood
based materials (by cost).

44. BMR Credit 4 - Use of Certified Green Building Materials,
Products & Equipment (5 points)
44
●Intent
○Use certified green building materials, products, and equipment, so as to reduce
dependence on materials that have associated negative environmental impacts.
●Compliance Options:
○Ensure that the project uses at least five passive or active green building materials,
products, and equipment that are certified by CII under Green Product Certification
Programme (GreenPro) or by a third party agency approved by IGBC.
○Points are awarded as below:

45. BMR Credit 4 - Use of Certified Green Building Materials,
Products & Equipment (5 points)
45
●Notes
○Passive Products & Materials include glazing, insulation, paints & coatings, adhesives
& sealants, flyash blocks, cement, concrete, composite wood, certified new wood,
housekeeping chemicals, false ceiling materials, flooring materials, furniture, gypsum
based products, high reflective materials & coatings, etc.,
○Active Products include Electrical systems (Lighting Systems & Controls, Pumps &
Motors, etc.,), Mechanical systems (unitary air conditioners, etc.,), Plumbing Fixtures
(faucets, showers, etc.,)
○The materials, products and equipment (eg. high reflective materials, water fixtures,
lighting fixtures, carpets, etc., ) certified by CII under Green Product Certification
Programme (GreenPro) or any third party agency will be accepted to show credit
compliance

46. BMR Credit 1 - Sustainable Building Materials (8 points)
46
●General Notes
○Building materials here refer to civil & interior materials.
○Material Cost = Total Cost - (Labour Cost + Installation Cost).
○If Labour and Installation Cost is not known, the default material cost should be
considered as 60% of the total cost of the material.
○The cost of electrical, mechanical & plumbing - equipment, systems & appliances,
○and movable materials & furniture shall not be considered in the total material cost.
○Temporary materials such as materials used for formwork, scaffolding, etc., should
not be considered for this credit calculation.

47. 47
Indoor
Environmental
Quality

48. Reference:
48

49. INDOOR ENVIRONMENTAL QUALITY (12 points)
49
IEQ Mandatory Requirement 1 - Minimum Fresh Air Ventilation
IEQ Mandatory Requirement 2 - Tobacco Smoke Control
IEQ Credit 1 - CO2 Monitoring (1 point)
IEQ Credit 2 - Daylighting (2 points)
IEQ Credit 3 - Outdoor Views (1 point)
BMR Credit 4 - Minimise Indoor and Outdoor Pollutants (1 point)
IEQ Credit 5 - Low-emitting Materials (3 points)
IEQ Credit 6 - Occupant Well-being Facilities (1 point)
IEQ Credit 7 - Indoor Air Quality Testing, After Construction and Before Occupancy (2 points)
BMR Credit 8 - Indoor Air Quality Management, During Construction (1 point)

50. IEQ Mandatory Requirement 1 - Minimum Fresh Air Ventilation
50
●Intent
○Provide adequate outdoor air ventilation, so as to avoid pollutants affecting indoor air
quality.
●Compliance Options:
○Case A: Mechanically Ventilated Spaces
■Demonstrate that the fresh air ventilation in all regularly occupied areas
(owner-occupied and tenant-occupied) to meet the minimum ventilation rates, as
prescribed in ASHRAE Standard 62.1 - 2010.

51. IEQ Mandatory Requirement 1 - Minimum Fresh Air Ventilation
51
●Notes:
○Projects with unitary air conditioning system catering less than 10% of the total
regularly occupied area can show compliance for minimum fresh air ventilation
through the criteria defined for Non Air-conditioned Spaces in EE MR 2, ‘Case - 2’.
○Residential buildings in mixed-use developments can show compliance for minimum
fresh air ventilation through the criteria defined in Non Air-conditioned Spaces.
○Tenant-occupied buildings should show compliance through feasible typical floor
plans & occupancy.
○In tenant-occupied buildings, if air-conditioning equipment is in tenant scope, then the
developer shall mandate provision of fresh air ventilation for tenant occupied spaces
in tenant agreement, specifying minimum fresh air ventilation requirements as per
ASHRAE Standard 62.1 - 2010.

52. IEQ Mandatory Requirement 1 - Minimum Fresh Air Ventilation
52
●Compliance Options:
○Case B: Non-Air Conditioned Spaces
■Provide operable windows and / or Doors to the exteriors, in all regularly
occupied areas, such
■that the operable area is designed to meet the criteria as outlined in the Table - 9
below:

53. IEQ Mandatory Requirement 1 - Minimum Fresh Air Ventilation
53
●Notes:
○Windows / doors should not have any obstruction within 2 m from the exterior
surface. Shading devices can be excluded.
○For sliding windows / doors, only openable area to the exteriors shall be considered in
calculations.
●General Notes:
○Regularly occupied areas are those where people sit or stand as they work,
irrespective of the number of days occupied in a year. Regularly occupied areas shall
include only enclosed spaces.
○Regularly occupied areas include work stations, cabins, meeting rooms, conference
rooms, waiting areas, cafeteria, etc.,
○Non-regularly occupied areas include toilets, store rooms, etc.,

54. IEQ Credit 1 - CO2 Monitoring (1 point)
54
●Intent
○Continuously monitor and control carbon dioxide level in the building to ensure
occupant comfort and well-being.
●Compliance Options:
○Demonstrate that the project has installed CO2 sensors in return air ducts to maintain
a differential CO2 level of maximum 530 ppm in all regularly occupied areas.
○Note:
■In tenant-occupied buildings, if installation of CO2 sensors is not in the
developer scope, then this credit cannot be attempted.

55. IEQ Credit 2 - Daylighting (2 points)
55
●Intent
○Ensure connectivity between the interior and the exterior environment, by providing
adequate daylighting
●Compliance Options:
○The project can choose any one of the following options or a combination, to show
compliance:
■Option 1 - Simulation Approach
■Option 2 - Measurement Approach
○Note: Tenant-occupied buildings should show compliance through feasible typical
floor plans & sections.

56. IEQ Credit 2 - Daylighting (2 points)
56
●Points awarded are as below:

57. IEQ Credit 2 - Daylighting (2 points)
57
●Notes
○Regularly occupied areas are those where people sit or stand as they work,
irrespective of the number of days occupied in a year. Regularly occupied areas shall
include only enclosed spaces.
○Regularly occupied areas include work stations, cabins, meeting rooms, etc.; whereas,
○areas with audio-visual facilities such as auditoriums, conference rooms, etc., can be
excluded from this credit calculation, with justification and supporting documents.
○Non-regularly occupied areas include toilets, store rooms, etc.
○Regularly occupied areas which are used for multi-purposes, such as
cafeteria-cum-meeting room, can be considered as separate spaces based on the
function. The room boundary need not be a physical boundary.
○Project with multiple buildings (including projects with common basement) must
independently meet the Daylighting criteria for each building.

58. IEQ Credit 2 - Daylighting (2 points)
58
●Option 1: Simulation Approach
○Demonstrate through computer simulation that 75% of the regularly occupied spaces
in the building achieve daylight illuminance levels for a minimum of 110 Lux (and a
maximum of 2,200 Lux) in a clear sky condition on 21st September at 12 noon, at
working plane.
○Areas with 2,200 Lux or more daylight illumination levels should not be considered.
●Option 2: Measurement Approach
○Demonstrate through daylight illuminance measurement that 75% of the regularly
occupied spaces in the building achieve daylight illuminance levels for a minimum of
110 Lux. Areas with 2,200 Lux or more daylight illumination levels shall be not
considered.
○Measurements shall be taken after installation of furniture, equipment & systems at
work plane height at 9 am, 12 pm, and 3 pm, on a 10 foot square grid. To show
compliance, consider the average of the measurements taken at 9 am, 12 pm, and 3 pm

59. IEQ Credit 3 - Outdoor Views (1 point)
59
●Intent
○Ensure connectivity between the interior and the exterior environment, by providing
adequate views
●Compliance Options:
○Achieve direct line of sight to vision glazing between 0.9 meters (3 feet) and 2.1
meters (7 feet) above the finished floor level, for building occupants in at least 75% of
all regularly occupied spaces.
○Also, the project shall comply with the following criteria:
■The building occupants must not have any obstruction of views at least 8 meters
(26.2 feet) from the exterior vision glazing. (OR)
■The building occupants must have access either to sky or flora & fauna or both.

60. IEQ Credit 3 - Outdoor Views (1 point)
60
●Notes:
○Tenant-occupied buildings shall show compliance through feasible typical floor plans
& sections.
○Regularly occupied areas are those where people sit or stand as they work,
irrespective of the number of days occupied in a year. Regularly occupied areas shall
include only enclosed spaces.
○Regularly occupied areas include work stations, cabins, meeting rooms, etc.; whereas,
areas with audio-visual facilities such as auditoriums, conference rooms, etc., can be
excluded from this credit calculation, with justification and supporting documents.
○Non-regularly occupied areas include toilets, store rooms, etc.,
○Regularly occupied areas which are used for multi-purposes, such as
cafeteria-cum-meeting room, can be considered as separate spaces based on the
function. The room boundary need not be a physical boundary.
○Internal courtyards with vegetation can be considered for this credit calculation.
○Project with multiple buildings (including projects with common basement) must
independently meet the OutdoorViews criteria for each building

61. IEQ Credit 4 - Minimise Indoor & Outdoor Pollutants (1 point)
61
●Intent
○Minimise the exposure of building occupants and maintenance team to hazardous
indoor and outdoor pollutants, which adversely affect indoor air quality and occupant
health.
●Compliance Options:
○Demonstrate that the project complies with at least two of the following criteria, as
applicable:
■Entryway Systems: Install entryway systems of minimum 2 meters (6 feet) in
length, at all the building main entrances.
■Printer Rooms, Chemical Storage Rooms, Janitor Rooms: Isolate areas exposed
to hazardous gases or chemicals (such as printer / copier rooms, chemical
storage rooms, janitor rooms) from regularly occupied areas, as per owner /
developer’s scope. Also, design such areas with exhaust system*, self-closing
door, deck-to-deck partition / hard ceiling.

62. IEQ Credit 4 - Minimise Indoor & Outdoor Pollutants (1 point)
62
■Air Filtering Media: For mechanically ventilated buildings, install air filtering
media after building flush-out, with at least MERV 13 (Minimum Efficiency
Reporting Value) or EU 7 or equivalent, to treat fresh air.
■Germicidal or UV Lamps: For mechanically ventilated buildings, install
germicidal/ UV lamps in Air-Handling-Unit (AHU) cooling coils

Notes:
Printers / Copier machines: Floor-mounted printers/ copier machines shall be considered to
show compliance; whereas, tabletop printers/ copier machines need not be considered.
* The Printer / Chemical storage / Janitor rooms shall be maintained at a negative pressure
of 5 Pascals (0.00005 bar).

63. IEQ Credit 5 - Low Emitting Materials (3 points)
63
●Intent
○Encourage use of materials and systems with low VOC emissions, so as to reduce
adverse health impacts on building occupants.
●Compliance Options:
○Demonstrate that the project complies with any three of the following categories:
■Paints and Coatings (1 point)
■Adhesives (1 point)
■Carpets (1 point)
■Composite Wood (1 point)
■New Wood Furniture (1 point)

64. IEQ Credit 5 - Low Emitting Materials (3 points)
64

65. IEQ Credit 5 - Low Emitting Materials (3 points)
65

66. IEQ Credit 5 - Low Emitting Materials (3 points)
66

67. IEQ Credit 5 - Low Emitting Materials (3 points)
67

68. IEQ Credit 5 - Low Emitting Materials (3 points)
68

69. IEQ Credit 6 - Occupant Well-being Facilities (1 point)
69
●Intent
○Provide occupant well-being facilities, so as to enhance physical, emotional and
spiritual well-being of building occupants.
●Compliance Options:
○Demonstrate that the project has occupant well-being facilities (such as gymnasium,
aerobics, yoga, meditation or any indoor / outdoor games) to cater to at least 5% of
building occupants, through the day.

70. IEQ Credit 7 - Indoor Air Quality Testing, After Construction and
Before Occupancy (2 Points)
70
●Intent
○Avoid occupant’s exposure to indoor airborne contaminants before occupying the
premises, so as to reduce the adverse health impacts on building occupants.
●Compliance Options:
○After construction and prior to occupancy, conduct baseline IAQ testing using testing
protocols consistent with the ISO method (listed below in Table 13) and demonstrate
that the maximum concentration levels of contaminants are not exceeded, as listed
below in Table 13, in all regularly occupied areas and common areas.

71. IEQ Credit 7 - Indoor Air Quality Testing, After Construction and
Before Occupancy (2 Points)
71

72. IEQ Credit 7 - Indoor Air Quality Testing, After Construction and
Before Occupancy (2 Points)
72
●For each sampling point where the maximum concentration limits are exceeded, conduct
additional flush-out with outside air and retest the specific parameter(s) exceeded to
comply with the requirement. Repeat procedure until all requirements have been met. When
retesting non-complying building areas, take samples from the same locations as in the first
test.
●The air sample testing shall be conducted as follows:
○All air sample testing measurements to be conducted before occupancy and during
normal occupied hours. The ventilation system should be operational starting at the
normal start time operated at minimum outside air flow rate under the occupied mode.
○Prior to testing the building shall have all interior finishes installed.
○The number of sampling locations will vary depending upon the size of the building
and number of ventilation systems. For each portion of the building served by a
separate ventilation system, the number of sampling points shall not be less than one
per 2,500 sq.m. (or) For each contiguous floor area, whichever is larger, and include
areas with the least ventilation and greatest presumed source strength.
○Air samples shall be collected between 1 meter and 2 meters from the floor, to
represent the breathing zone of occupants, and over a minimum 4-hour period.

73. IEQ Credit 8 - Indoor Air Quality Management, During
Construction (1 Point)
73
●Intent
○Reduce indoor air quality problems resulting from construction activities, and promote
comfort and well-being of construction workers and building occupants.
●Compliance Options:
○Develop and implement an Indoor Air Quality (IAQ) management plan during
construction and pre-occupancy phase, addressing the following measures, as
applicable: Consider ‘During Construction Indoor Air Quality Management Guidelines’
from National Building Code (NBC) of India, Part 7 - Constructional Practices and
Safety.

74. IEQ Credit 8 - Indoor Air Quality Management, During
Construction (1 Point)
74
●Scheduling
○Coordinate construction activities to minimise disruption of occupied spaces.
○Carefully sequence construction activities to minimise IAQ issues.
○Protect stored on-site and installed absorptive materials from moisture damage.
○Do not install moisture-damaged materials unless they have been properly dried.

●Electrical & Mechanical Equipment & Systems Protection
○Store equipment & systems in a clean, dry location.
○Protect ducts and equipment by sealing openings.
○Clean air plenums before use.

●Housekeeping
○Implement practices to ensure a clean job site to control potential contaminants such
as dirt, dust and debris.
○Clean up spills, and keep work areas dry.

75. IEQ Credit 8 - Indoor Air Quality Management, During
Construction (1 Point)
75
●Isolate Clean Areas
○Isolate areas to prevent contamination of clean or occupied spaces using physical
separation.

●Source Control
○Avoid use of finish materials with high VOC and formaldehyde levels.
○Isolate and ventilate, as appropriate, when using any toxic materials or creating
exhaust fumes.
○Implement measures to avoid the tracking of pollutants into the work area and
occupied portions of the building.

76. Thank
you!
Dr. Rohan Dasgupta
[phone]
[email protected]
76