Page 20 - Shelter-April 2024

THEME PAPER

typology, is fast emerging become zero-carbon. Despite also, use state of the art,
as a preferred option for limitations, promoting green innovative and low-carbon
promoting sustainability in roof should be made an construction technologies,
the buildings. Green roof, is integral part of any strategy which are cost- effective,
defined as a space on the roof for decarbonising buildings. speedier, material/energy/
comprising of collection of water efficient, safe and
greenery, planted on top of a Using Green Materials & generators of minimum waste
man-made structure. Green Innovative Construction and carbon emissions.
roof offers enormous social, Technologies
physical, economic and Buildings consume three Conclusion
environmental advantages billion tons of raw material Buildings, provide space for
to the individuals, owners, annually, constituting 40 human living and working
communities, city, nation percent of total materials and play an important and
and planet earth, in terms used globally (Roodman and critical role in making human
of; making buildings cost- Lenssen, 1995). Materials settlements productive,
effective, energy efficient; remain major contributor efficient, liveable and
consuming limited energy to carbon emission and sustainable. No city can
and resources; bringing determinant of embodied ever achieve sustainability,
nature into buildings/ city; energy, cost, quality and unless it is ably supported
reducing urban heat island maintenance of buildings by qualitative and nature
effect, reducing the intensity besides posing serious responsive passive-built
of storm water and saving environmental issues/ carbon environment, which is carbon
cities from flooding; reducing emissions by extraction, neutral and generator of
global warming and lowering transportation, processing, minimum waste besides
carbon footprint of the fabrication, installation and consuming minimum energy
building/city; conserving its disposal. Considering and natural resources.
rainwater water; meeting critical environmental and Looking at the significant
deficiency of green spaces energy implications, choice implications of buildings, in
in congested parts of cities; of building materials should terms of energy and resource;
making optimum use of invariably revolve around planning, designing and
available unused roof space materials; having minimum constructing sustainable and
without increasing the carbon footprint, involving energy-efficient buildings
building footprint; promoting minimum embodied energy; shall invariably remain
economy; generating minimising maintenance/ critical and will hold the key
employment; promoting replacement costs and to tackling climate change,
socialisation and security; creating healthy indoor minimising global warming
making people happy, environment. Accordingly, and reducing carbon
healthy and more productive; materials used in buildings footprint. World Energy
bringing birds back to the should essentially be resource Outlook (IEA, 2019a), has
cities; growing vegetables and efficient; natural, renewable; reported that; cost-effective,
making cities self-sufficient energy/water efficient; energy efficiency and
in daily needs; eliminating environment responsive; decarbonisation measures
transportation and affordable; recyclable and in buildings could annually
refrigeration of vegetables; preferably made from save 6.5 Gigatons of CO
2
increasing value of properties; industrial/ agro-waste. In emissions by 2040. Besides
empowering cities to addition, buildings should providing healthier, resilient

18 HUDCO-HSMI Publication