Page 49 - GRIHA Manual Volume IV - Introduction to National Rating System
P. 49
40 Griha Manual: Volume 4
Few examples of such materials are as follows:
# Salvaged timber and reused wood products such as antique furniture and so on. Utilizing waste
wood helps in reducing the use of virgin wood. Timber and wood products can be reused from
scrap dealers who dissemble old buildings.
# Alternatively, rapidly renewable materials/products, which are made from small diameter trees
and fast growing low utilized species harvested within a 10 year cycle or shorter such as bamboo,
rubber, eucrasia, eucalyptus, poplar, jute/cotton stalks, and so on. Rubber trees are grown to
harvest rubber and at the end of their useful life, they are cut down. Thus, rubber tree wood can
be utilized as a substitute for other woods. Bamboo is a rapidly renewable plant, which grows
in 4–7 years. Thus, products made from bamboo can also be utilized. These products include
engineered products, bamboo ply boards, rubber, jute stalk boards, and so on.
# Composite wood products such as hardboards, block boards, lumber-core plywood, veneered
panels, particleboards, medium/low density fibreboards made from recycled wood scrap from
sawmill dusts or furniture industry bonded with glue or resin under heat and pressure, can also
be used as low-energy finishes in interiors.
# Products, which utilize industrial waste such as wood waste, agricultural waste, and natural fibres
like sisal, coir, and glass fibre in inorganic matrices like gypsum, cement, and other binders such
as fibrous gypsum plaster boards etc. can also be used.
# Products, which use recycled materials like glass, crushed stone, and other waste, such as terrazzo
or which are resource efficient finishes such as finished concrete flooring, ceiling tiles, and ceramic
tiles are useful. Following are the advantages of using products with recycled content:
• These products divert waste from landfills.
• Reduce the quantities of virgin materials used.
• Reduce the overall embodied energy of the product.
# Use of glass, which is manufactured using waste glass cullets saves about 26% of the total energy
required for procuring and transportation of raw materials.
# Gypsum board partitions use 92% gypsum, which can either be sourced naturally or is produced
as a by-product of power plants. Thus, gypsum used for partitions can contain 100% post-
industrial recycled content. Gypsum has high recyclability potential as well.
# Ceramic tiles are extremely durable and require minimum maintenance. Ceramic tiles usually
have 100% recycled content in the form of recycled glass.
# Terrazzo flooring has very low embodied energy content as it uses recycled materials, such as
glass, crushed stone, and other wastes. It can have up to 60% recycled content.
Materials sourced and imported from other countries shall not be considered as low-energy
materials.
GRIHA speciic information
Objective
To use low-energy/recycled materials/finishes/products in the interiors, which minimize the use
of wood as a natural resource. To use low-energy materials and products, such as composite
wood products/renewable materials/reused wood/low-embodied energy products/products,
which utilize industrial waste/recycled products.
Few examples of such materials are as follows:
# Salvaged timber and reused wood products such as antique furniture and so on. Utilizing waste
wood helps in reducing the use of virgin wood. Timber and wood products can be reused from
scrap dealers who dissemble old buildings.
# Alternatively, rapidly renewable materials/products, which are made from small diameter trees
and fast growing low utilized species harvested within a 10 year cycle or shorter such as bamboo,
rubber, eucrasia, eucalyptus, poplar, jute/cotton stalks, and so on. Rubber trees are grown to
harvest rubber and at the end of their useful life, they are cut down. Thus, rubber tree wood can
be utilized as a substitute for other woods. Bamboo is a rapidly renewable plant, which grows
in 4–7 years. Thus, products made from bamboo can also be utilized. These products include
engineered products, bamboo ply boards, rubber, jute stalk boards, and so on.
# Composite wood products such as hardboards, block boards, lumber-core plywood, veneered
panels, particleboards, medium/low density fibreboards made from recycled wood scrap from
sawmill dusts or furniture industry bonded with glue or resin under heat and pressure, can also
be used as low-energy finishes in interiors.
# Products, which utilize industrial waste such as wood waste, agricultural waste, and natural fibres
like sisal, coir, and glass fibre in inorganic matrices like gypsum, cement, and other binders such
as fibrous gypsum plaster boards etc. can also be used.
# Products, which use recycled materials like glass, crushed stone, and other waste, such as terrazzo
or which are resource efficient finishes such as finished concrete flooring, ceiling tiles, and ceramic
tiles are useful. Following are the advantages of using products with recycled content:
• These products divert waste from landfills.
• Reduce the quantities of virgin materials used.
• Reduce the overall embodied energy of the product.
# Use of glass, which is manufactured using waste glass cullets saves about 26% of the total energy
required for procuring and transportation of raw materials.
# Gypsum board partitions use 92% gypsum, which can either be sourced naturally or is produced
as a by-product of power plants. Thus, gypsum used for partitions can contain 100% post-
industrial recycled content. Gypsum has high recyclability potential as well.
# Ceramic tiles are extremely durable and require minimum maintenance. Ceramic tiles usually
have 100% recycled content in the form of recycled glass.
# Terrazzo flooring has very low embodied energy content as it uses recycled materials, such as
glass, crushed stone, and other wastes. It can have up to 60% recycled content.
Materials sourced and imported from other countries shall not be considered as low-energy
materials.
GRIHA speciic information
Objective
To use low-energy/recycled materials/finishes/products in the interiors, which minimize the use
of wood as a natural resource. To use low-energy materials and products, such as composite
wood products/renewable materials/reused wood/low-embodied energy products/products,
which utilize industrial waste/recycled products.
