Page 116 - GRIHA Manual Volume V - Introduction to National Rating System
P. 116
Evaluation procedure 109
CRIteRIon 27
MInIMIze ozone
depletInG substAnCes
GRIHA-speciic information
Objective
eliminate or control the release of ozone-depleting substances into the atmosphere. the
ozone depleting materials commonly used in buildings are CfCs or hCfCs in refrigeration and
air-conditioning systems, halons in fire suppression systems and extinguishers, and in insulation.
Table 27.1 Ozone depleting potential (ODP) of some commonly used substances
Substance ODP
R11 1
R12 0.9
R22 0.05
R134a <0.0005
R143a 0
R717 (ammonia) 0
R744(CO 2 ) 0
27. 1 Commitment
27.1.1 use insulation with zero-odP such as hCfC-free rigid insulation foam insulation, mineral
fibre board, cork wool, expanded (bead) polystyrene, recycled newspaper, jute, and
cotton. avoid materials that do not inherently have a zero-odP, such as polyurethane
foams and polyisocyanurates.
27.1.2 install CfC- free equipment for refrigeration and air conditioning
27.1.3 install halon-free fire suppression systems and fire extinguishers in the building
27.2 Compliance
the following documents are to be submitted.
27.2.1 a certificate from the manufacturer and supplier, signed by the architect and the
engineer, stating that 100% of the insulation used in the building is free of CfCs and
hCfCs.
27.2.2 the bill of quantity clearly demonstrating that 100% or total quantity of all the insulation
used in the building is free of CfCs and hCfCs.
27.2.3 a certificate from the hvaC consultant or supplier, signed by the architect or engineer,
stating that the hvaC and refrigeration equipments and systems installed in the
building are free of CfCs.
CRIteRIon 27
MInIMIze ozone
depletInG substAnCes
GRIHA-speciic information
Objective
eliminate or control the release of ozone-depleting substances into the atmosphere. the
ozone depleting materials commonly used in buildings are CfCs or hCfCs in refrigeration and
air-conditioning systems, halons in fire suppression systems and extinguishers, and in insulation.
Table 27.1 Ozone depleting potential (ODP) of some commonly used substances
Substance ODP
R11 1
R12 0.9
R22 0.05
R134a <0.0005
R143a 0
R717 (ammonia) 0
R744(CO 2 ) 0
27. 1 Commitment
27.1.1 use insulation with zero-odP such as hCfC-free rigid insulation foam insulation, mineral
fibre board, cork wool, expanded (bead) polystyrene, recycled newspaper, jute, and
cotton. avoid materials that do not inherently have a zero-odP, such as polyurethane
foams and polyisocyanurates.
27.1.2 install CfC- free equipment for refrigeration and air conditioning
27.1.3 install halon-free fire suppression systems and fire extinguishers in the building
27.2 Compliance
the following documents are to be submitted.
27.2.1 a certificate from the manufacturer and supplier, signed by the architect and the
engineer, stating that 100% of the insulation used in the building is free of CfCs and
hCfCs.
27.2.2 the bill of quantity clearly demonstrating that 100% or total quantity of all the insulation
used in the building is free of CfCs and hCfCs.
27.2.3 a certificate from the hvaC consultant or supplier, signed by the architect or engineer,
stating that the hvaC and refrigeration equipments and systems installed in the
building are free of CfCs.
