World Academy of Science, Engineering and Technology

International Journal of Architectural and Environmental Engineering

Vol:5, No:12, 2011

Adaptive Climate Res

Responsive
ponsive Vernacular
Construction in High Altitude
Ar. Amitava Sarkar

• To analyze the architectural design of the individual

Abstract—In the traditional architecture, buildings were designed dwelling units as manifestation of various design
to achieve human comfort by using locally available building parameters, such as local climate conditions as well as the
materials and construction technology which were more responsive to socio-economic-political situations of that time period,
their climatic and geographic condition. This paper will try to bring
out the wisdom of the local masons and builders, often the inhabitants and
themselves, about their way of living, and shaping their built • To find out the architectural details of various building
environment, indoor and outdoor spaces, as a response to the local elements, motifs, symbols, etc., used by them to build our
climatic conditions, from the findings of a field-study at a hilly design vocabulary.
settlement.
International Science Index, Architectural and Environmental Engineering Vol:5, No:12, 2011 waset.org/Publication/6422

III. DESCRIPTION OF THE SETTLEMENT

Keywords—Traditional architecture, High altitude, Climatic
adaptation, Sustainable construction The aim was to find out the salient architectural features of
a hill settlement. For that a traditional settlement in the hilly
region of district Kullu at Himachal Pradesh was selected. The
I. INTRODUCTION settlement was at the village Bhalyani, in district Kullu,
situated in the Lug valley, having 31º56’N latitude & 77º2’E
W ITH the advancement achieved in the field of building
science and technology, we are increasingly becoming
aware of the importance of the energy-efficient building
longitude, at an altitude of 1952Metres above mean sea level,
about 9 km from district main city Kullu [9, 10]. Main seasons
design[1]. Many a times one can find the solution to optimize found in these regions are Summer - from March till June,
the use of resources and to achieve the human comfort by Winter - from December to February and Monsoon - from
critically evaluating the vernacular architecture of that place July to September. During summer season, maximum
[2]. Inhabitants often employ and use various adaptive features temperature reaches to 33.8˚C and minimum of 14˚C. In
in their houses to keep the indoor conditions within winter, maximum temperature reaches to 16˚C and minimum
comfortable zone [3].The best way to understand the of 2˚C. During the winter months, the temperature goes down
architectural characteristics of a settlement is by conducting to the freezing point, even heavy to medium snowfall occurs.
field survey/study. During the physical on-site survey of the Pleasant climate is found during the autumn season of October
settlement, individual automatically starts gaining knowledge & November. This region also experiences rainfall during July
about the process of shaping their built-environment, to September, when the weather becomes chilly because of the
evolution of the building typologies and their adaptation with proximity to the snow range. Therefore, the cold climatic
change in their need [2, 4]. The following study was conditions are predominant here, which is also supported by
conducted to gain knowledge and wisdom from the local the climatic classification of India by the National building
masons and builders, often the inhabitants themselves, about Code of India [7]. It will be seen that to provide comfort to the
their way of living, and shaping their built environment, occupants from the cold conditions plays a major role in
indoor and outdoor spaces, as a response to the local climatic shaping the settlement structure and human habitat there. Fig.
conditions. 1 shows the location of Bhalyani settlement at Kullu.

II. OBJECTIVE OF THE STUDY

Following were the objectives of the study of a hill
settlement:
• To find out the morphological growth pattern of the
settlement,
• To understand the architectural planning pattern of the
settlement,

Ar. Amitava Sarkar is with the National Institute of Technology,

Hamirpur, Himachal Pradesh 177005 India (phone: +91-1972-254918; fax:
+91-1972-223834; e-mail: amitava@ nitham.ac.in).
Fig. 1 Location of Bhalyani Settlement at Kullu

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 World Academy of Science, Engineering and Technology
International Journal of Architectural and Environmental Engineering
Vol:5, No:12, 2011

IV. APPROACH FOR CLIMATIC DESIGN

A building designer should use / manipulate the following
major design elements / tools to control the thermal
environment in the buildings to suite the climatic conditions of
the place [5, 6]:
1. Shape of the building (massing),
2. Fenestration (size, positioning and orientation of
windows),
3. Building fabric (insulation & thermal storage)
4. Solar control (shading & surface finishes),
5. Ventilation.

V. ARCHITECTURAL FEATURES OF SETTLEMENT & DWELLINGS

A. Spatial Settlement pattern
International Science Index, Architectural and Environmental Engineering Vol:5, No:12, 2011 waset.org/Publication/6422

Fig. 2 Dwellings are oriented and clustered for solar heat gain
In the cool climate, the main function of the shelter should
be to provide thermal comfort to the occupants by reducing
heat loss from the buildings. Therefore, provision should be
made in the buildings for solar heat gain, especially in winters,
and all the fenestrations should have proper sealing to prevent
heat loss. Hence, the buildings should be oriented to the
equator, i.e., towards the south and the settlements should
have compact layout to reduce heat loss. Here also it was
found that the settlement has a compact layout with the
dwellings connected by narrow pathways and clustered around
courtyards with their openings oriented towards south-east and
south-west to take best advantage from solar heat-gain during
winter which can be seen in fig. 2.
B. Shape of the Building (Massing)
Traditional dwellings in the settlement are being constructed
in a straight forward way based on the functional requirements
of the users and the availability of the suitable building
materials and construction techniques developed over the
Fig. 3 Typical floor plans of dwellings
centuries to provide comfort to the users from the extreme
cold. The dwellings are of two storeys high with linear
arrangement of rooms, connected by verandah / balcony, in
both the floors. Fig. 3 & 4 shows the typical floor plans,
section, and elevation of the dwellings. Normally in the
ground floor/level, cattle-shed and storage areas are provided.
In the upper level, all the living areas are provided along the
cooking area / kitchen; this helps in keeping the surrounding
rooms warm during cool night time. Also attic space is
provided below the pitched roof covered with shingles / stone
tiles. All the wet areas are normally kept separate from the
living areas. All the habitable rooms, verandah and balconies
are oriented towards the south, east and west to receive the
maximum solar heat gain during day time, which are stored in
the thermal mass of the dwellings to keep the interiors warmer
during night time. Mostly the height of the rooms was kept
lower (2.1 - 2.4 m). This low ceiling height helps to keep the
interior of the rooms warmer from the heat released by the
individuals. Also this contributes to the low surface-to-volume
ratio of these dwelling units and thus reducing the heat loss
from its surfaces.

Fig. 4 Typical section & elevation of dwelling

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 World Academy of Science, Engineering and Technology
International Journal of Architectural and Environmental Engineering
Vol:5, No:12, 2011

A. Fenestration - Size, Positioning and Orientation of D.Flooring

Windows In the ground level mud & cow-dung were used for flooring
Small size openings are provided in the rooms of the above the plinth made of random rubble masonry. The upper
dwellings with operable timber and glass shutters. Openings floors are made of timber planks and timber-joists, shown in
were mostly provided on east, west and southern walls. Rooms fig. 6. The use of timber also prevents / reduces heat-gain and
were single-loaded and connected by timber verandah / heat-loss through floors to a great extent.
balcony. These verandahs are also provided with continuous
operable timber and glass shutters, to allow sunlight to come
inside the dwellings when open and are kept closed during
night-time and winter time, when there are chilled air blowing,
to prevent heat loss. The openings at the ground level are
protected by the balcony above, and the openings at the first
floor are protected by the projection of the pitched roof. No
openings are provided in the northern side to avoid the cool
International Science Index, Architectural and Environmental Engineering Vol:5, No:12, 2011 waset.org/Publication/6422

winter air. These features also help in solar heat-gain in winter

and prevent heat-loss during cooler nights.
B. Building Fabric - Insulation & Thermal storage
In almost all cases, the nature has provided the building
materials suitable to the local climatic conditions. In this
settlement also, it was found that the dwellings were
constructed with locally available timber and stone materials,
Fig. 6 Timber flooring and cantilevered balcony
both having high thermal capacity and low conductivity (k-
value in W/m ºC) – for hard timber 0.16 and for sandstone E. Roofing & Rain Protection
1.295. Pitched roofs were provided with rafters and purlins made
of locally available slender timbers. Roof covering was done
C. Walls
with slate made from locally available stones. Below the roof
The walls are made of stone masonry and timber having a ceiling was constructed with timber. The attic was normally
thickness of 45-60 cm. This traditional style of wall used for storing food-grains and also as the abode of the God.
construction is known as ‘Kath-Khuni’ or ‘Dhajji-wall’ The light-weight roof construction and the air between the
construction method shown in fig. 5. This indigenous style of roofing and attic-floor provided a very good thermal insulation
wood-and-stone construction technique is both practical and against the passage of heat. The heat stored during the day
aesthetically pleasing. By the systematic process of layering time of the winter, helped to keep the interior warmer during
and interlocking the locally available timber and stone cool winter nights. Fig. 7 shows the roofing pattern of
materials, the construction becomes inherently strong, stable dwellings in the settlement.
and flexible to make them suitable to their mountainous terrain The settlement receives sufficient amount of rainfall
that is prone to earthquake. These heavy walls allow a very through the year. Hence the low pitched roof was a very good
good thermal insulation by providing high time-lag of more solution to drain off the rain-water from the dwellings. Also
than 8 hours. This makes the interior of the house cooler in the roof-edges were sufficiently projected to protect the wall
summer and warm in winter for maximum part of the year. against damage from rain-water.

Fig. 5 Traditional 'Kath-khuni' wall construction with timber & stone

Fig. 7 Roofing pattern and skyline of the settlement

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 World Academy of Science, Engineering and Technology
International Journal of Architectural and Environmental Engineering
Vol:5, No:12, 2011

F. Special Features and Activities

The dwellings are oriented for the maximum solar heat
gain, a basic design approach for the buildings in cold climate.
Also they have created their indigenous style of sun-space or
solarium by using the balcony in the first floor, shown in fig.
8. The natural contour / slope of the site were used for the
drainage of rain-water. Sunny courtyards were used to perform
various outdoor activities during day-time. Another salient
feature observed in the dwellings is the location of the kitchen.
They are located on the upper floor, the cooking space –
‘chullah’, normally made of mad, is placed either at the center
or at one side of it. This spatial arrangement helps in keeping
the indoor warm even in the cool nights.
International Science Index, Architectural and Environmental Engineering Vol:5, No:12, 2011 waset.org/Publication/6422

Fig. 8 Indigenously built "solarium" or "sun-space" created in

dwellings
Fig. 10 Construction process of the dwellings in the settlement

From the above discussions it can be seen that this

settlements have developed construction techniques and the
use of locally available limited resources to adapt themselves
with the geo-climatic conditions of the terrain. This
construction method have provided comfort to the occupants
of the settlement for most part of the year without using any
artificial costly source of energy by using materials with less
embodied and operational energy. The clothing and activity
pattern of the people are also adapted to the geo-climatic
conditions of the terrain to provide thermal comfort to the
occupants in a very affordable and efficient manner.
Therefore, it can be concluded from the findings that due
consideration to the geo-climatic conditions of the location
will contribute positively to achieve energy-efficiency and
thermal-comfort in buildings as well as in the settlement
Fig. 9 Featured architectural elements of the dwellings system.
VI. CONCLUSION REFERENCES
Above Figure 9 shows the typical architectural elements [1] Mili Majumdar (ed.), Energy Efficient Buildings in India, 2009, TERI
observed in the dwellings of the settlement. All the Press, New Delhi.
construction work is done with the locally available ‘Deodar’ [2] Kingston Wm. Heath,Vernacular Architecture And Regional Design,
2009, Architectural Press, UK..
timber and stone materials as slate. Following figure will [3] Krishnan, A., Baker, N., Yannas, S., Szokolay, S.V., (Ed.), Climate
summarize the traditional construction method and process Responsive Architecture: A Design Handbook for Energy Efficient
that provide thermally comfortable shelter to the occupants by Buildings, 2001, New Delhi: Tata McGraw-Hill.
[4] Koenigsberger, O.H., Ingersoll, T.G., Mayhew, A., Szokolay, S.V.,
giving due considerations to local climatic conditions. Manual of Tropical Housing and Building: Climatic Design, 1973,
India: Orient Longman.

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 World Academy of Science, Engineering and Technology
International Journal of Architectural and Environmental Engineering
Vol:5, No:12, 2011

[5] Milne, Murray and Givoni, Baruch, Architectural Design based on

Climate in Donald Watson, editor. “Energy Conservation through
Building Design”, 1979, New York: ARB/McGraw Hill Book
Company.
[6] Watson, Donald and Kenneth Labs, Climatic Building Design, 1983,
revised 1993, New York: McGraw-Hill.
[7] BIS, National Building Code, 2005, Bureau of Indian Standards.
[8] BEE, Energy Conservation Building Code 2007, 2008, Bureau of
Energy Efficiency, New Delhi.
[9] www.googlemaps.com.
[10] http://himachaltourism.gov.in.

Ar. Amitava Sarkar (Kolkata, India,

20/01/1977) has obtained his graduate
degree Bachelor of Architecture from
the University of Madras, India in 2001,
International Science Index, Architectural and Environmental Engineering Vol:5, No:12, 2011 waset.org/Publication/6422

and post-graduate degree Master of City

Planning from the Indian Institute of
Technology, Kharagpur, India in 2003.
The author’s major fields of study are in
architecture and city-planning.He has
eight years of industrial and teaching
experience after obtaining the post-
graduate degree. He has worked as
Project Planner at Indian Institute of
Technology, Kharagpur, India and as Lecturer in Architecture at Adhiyamaan
College of Engineering, Hosur, Tamilnadu, India. Presently he is working as
Assistant Professor at Architecture Department, National Institute of
Technology, Hamirpur, Himachal Pradesh, India. He has published six
research papers in refereed International / National Conferences and eight
research papers in refereed International / National journals. His Current
research interests are in climate responsive architecture, energy-efficient
architecture and building science. Ar. Sarkar is life member of Council of
Architecture, India. He is also associate member of Indian Institute of
Architects, India and Institute of Town Planners, India. He has also completed
consultancy projects worth Rs. 1.5crore.

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