An unedited
version of my article published in the February 2016 edition of the
in-flight magazine, JetWings.
Study nature, love nature, stay close to nature. It
will never fail you. ~ Frank Lloyd Wright, American architect
The complex and ambiguous relationship between man and
nature is central to Indian architecture. ~ Charles Correa, Indian architect
Architecture is an intrinsic and inescapable part of
our lives, and we share a complex relationship with it: we build for shelter,
to fulfill our dreams, to make a statement, or for our spiritual needs.
However, the same construction industry that produces architectural masterpieces
is also one of the biggest contributors of greenhouse gases and a voracious consumer
of natural resources. Construction is only slated to boom further, but we run
the risk of ruining the very land we build on; clearly, the equation seems
wrong.
This dilemma has sparked off debates worldwide,
amongst both architects and consumers of architecture, seeking environmentally
friendly solutions. There is consensus that architecture must be sustainable
and ecologically sensitive.
Sustainable architecture, simply put, is that which
creates minimum environmental and ecological impact by being energy efficient,
reducing negative consequences and byproducts, and exhibiting climatic and
geographic sensitivity.
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Sri Lankan architect Geoffrey Bawa championed sustainability through climatic appropriateness, the use of local materials, and repurposing found materials and objects. |
Why is sustainable architecture the need of the hour?
In many cities, a misunderstanding or miscalculation
of environmental impacts has led to many harmful interventions and developments
in areas better suited as green belts. The negative impact of these
developments is seen when disaster strikes communities in places that are
inappropriate for construction. ~ Chitra Vishwanath, Indian architect
Architecture is a resource-intensive industry, relying
on both man-made and natural materials like timber, sand, metals, cement,
bricks, stones and glass. Extensive quarrying of natural materials, looting
sand from river-beds leading to their altered course and behaviour,
indiscriminate felling of hard-wood to fuel the industry, and reclaiming land
from water-bodies and forests for construction are direct consequences of the
demands of architecture.
Besides altering natural environments, architecture
has also become a contributor of environmental waste and excesses. In addition
to the energy expended throughout the construction process, buildings also
increase electricity and water loads, alter land-use patterns, and sometimes,
through inappropriate building materials and design, prevent the effective
functioning of natural phenomena like water drainage, sunlight penetration and wind
flow.
To reduce architecture’s carbon footprint, allow for
the replenishment of renewable resources, and regulate the use of non-renewable
resources, sustainable architecture is the need of the hour.
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A
building in Central Sikkim is raised on stilts, demonstrating an understanding
of natural phenomena, as the area is prone to floods and landslides. |
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Architect
Laurie Baker’s buildings showcase his philosophy of local and sustainable
architecture by maximising a building’s energy efficiency. |
Looking back at architecture
The various styles of architecture are all the result
of thousands of years of ordinary people trying to make buildings that keep out
the rain and wind and sun by using whatever materials there were, lying around
or growing in the place where they live. So I see what principles have
developed over centuries from their forefathers' study of local conditions and
materials and then apply these principles to what I want to do for my client.
Sometimes, the local architecture is so beautiful and so apt that I feel it
would be foolish and an affront to try and design in any other way. ~ Laurie
Baker, British-born Indian architect
Historically, architecture was always highly localised
in terms of design, to suit the specifics of sun, wind, rain and snow. Materiality
lent a distinct character to buildings in a given geographic area, through use
of local materials which withstood local climatic conditions. Architecture,
hence, had always been sustainable by default, creating very minimal impact on
the surroundings.
Be it igloos in Arctic regions, cave houses from
Turkey, log-huts in Borneo, roof-less houses from Egypt or turf-roofed
buildings from Scandinavia, most countries in the world had unique
architectural styles to offer.
Closer home, distinctive temple architecture in
Kerala, mud and stone homes in Rajasthan’s deserts, buildings on stilts in
flood-prone areas, laterite constructions along the western coast, timber and
stone construction in the Himalayas, or even monuments using local sandstone or
granite ensured that architecture was distinctive, efficient and highly sustainable.
Modernisation and the advent of technology allowed
architecture to become image-driven; unfortunately, this is often at the cost
of context-driven parameters, sometimes resulting in the use of unsuitable
materials or an excessive use of space and resources.
The current scenario of globalisation has led to
architectural homogeneity in many countries, in essence losing regional
variation and identity. Vernacular architecture acquired a negative
connotation, implying a lack of development and contemporariness.
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A
traditional Nubian home in southern Egypt, with a porous, woven roof for
ventilation. Such roofs work here as the region is rain-free. Note the use of
local river sand as the flooring material. Vernacular architecture creates
uniqueness. |
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This
church in Iceland is a good example of traditional Scandinavian turf-roofed
architecture, which uses only locally available materials, providing excellent insulation
from the biting cold thanks to the grass roof. |
How can the construction industry change
architecture’s impact on the environment?
Any construction process impacts and modifies local
ecology. For an environmentally sensitive architect, it is crucial to analyse
the nature of these impacts to take correct decisions. ~ Chitra Vishwanath,
Indian architect
Without discounting the huge advantages the
construction industry gained through technological developments, it must be
said that it is probably time to look back at the history of architecture,
introspect, and re-learn certain aspects from the past.
Maximising a building’s energy efficiency is the key
to sustainable architecture. Concepts like using the existing slopes of the land,
least dependency on mechanical systems for lighting and ventilation, use of insulating materials,
harnessing solar and wind power, rainwater harvesting, water recycling and
re-using, and use of appropriate local materials and technologies have the potential
to mitigate the damage caused.
Adhering to the standards of green building
certifications like LEED and GRIHA is the norm in the industry today, paving
the way towards eco-friendliness and sustainability.
Adaptive re-use of existing buildings is an exciting
new idea, popular worldwide. With buildings from the last couple of centuries
no longer serving the purposes they were built for, they are being retained
partially or wholly, while modifying just the interiors to meet contemporary
requirements – a great example of environmentally friendly architectural practices.
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A
home in a village in one of Rajasthan’s deserts is built entirely using local
stone and thatched roofs. |
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A
traditional cave home in Cappadocia, Turkey, has now been converted into a boutique
hotel, in an example of adaptive reuse. |
How can you, as a consumer of
architecture, make small changes to help sustainability?
I have never doubted that in a country like ours any
of us has any right to squander or waste, or use unnecessarily money, materials
or energy. ~ Laurie Baker, British-born Indian architect
Aware architects as well as clients are increasingly
embracing need-based instead of want-based architecture, with each person
occupying a smaller footprint on the earth by reducing the size of their
offices or homes. Substantiating the smaller footprint is the idea of self-sufficiency
for electricity, water, heating and cooling systems, and mindful use of energy.
These may seem like minuscule steps, but they definitely bring significant
benefits to the clients as well as the environment.
*****
Merely by being sensitive to our location in space, we
can hope for a sustainable and thriving architectural industry at minimal environmental costs. Far from being a
fad or a buzzword, sustainable architecture needs to once again be the natural
course of the industry.
I believe in God. Only, I spell it Nature. ~ Frank
Lloyd Wright, American architect