Bhimakali temple, built in Kath-Kuni style of architecture.
Kath-Kuni is an indigenous construction technique prevalent in the isolated hills of northern India, especially in the region of Himachal Pradesh where it's known as "Kath Kuni" and in Uttarakhand it's known as "Koti Banal". It is a traditional technique which has been orally transmitted from one generation to another.[1] The construction was devised keeping the seismic activity, topography, environment, climate, native materials and cultural landscape in perspective. Most of the oldest temples, in the region, are built using this ancient system. This unique construction technique has led to the formation of a vernacular architectural prototype known as Kath-Kuni (cator and cribbage) architecture.
Materials
The primary building materials employed in the construction are stone (igneous), wood and slate (metamorphic). Stone, usually granite, which is good in compression is used for foundational purposes. The walls are made of stone and wood which are alternatively stacked up, one over another. Wood which is good in compression and tension are interlocked in the corners with other wooden members. Deodar/Kali wood which is commonly available, is used as wall, flooring and roofing members. Slate, is used as a water proofing roofing material, employed to protect the building from heavy rain and snowfall. All the materials are locally available and are easily sourced.
Construction technique
Kath Kuni construction technique
The construction typically involves laying courses whose outer layer comprises random rubble masonry and wood, laid out alternately.[2] The walls are almost two feet thick in dimension and act as a cavity wall. After one course of random rubble there is a course of wood (only outer course), which is interlocked by dovetail random intermediate joints, to hold the wooden members in place. The courses alternate until a ceiling height is attained. The cavity wall of every outer course of wood/stone is filled with smaller stones within. They act as insulation fillers between the outer layers.
Applications
Kath-Kuni Architecture has widely been employed in the construction of residences.[3] Here the farmers would rear their cattle in the lowermost floor such that the heat generated would heat the upper layers of the house. The next level of the dwelling unit is used as a granary, where food is stocked for the winters. The last few floors are designed as residential spaces which are cantilevered from the main walls of the house to capture sunlight, during the day. Hip roofs are usually employed but there are instances where gable with dormer windows are adopted. Good examples of Kath-Kuni Architecture could be seen in existing temples, where the craftmanship exhibited in the form of ornamentation and detailing in design,[4] can be seen on the wooden members of walls, flooring, windows, doors and roofs.
Construction Technique
Advantages
Sustainable
Materials locally available
Suitable for seismic zones
Insulates during extreme weather conditions
Energy efficient
Helps sustain the livelihood of people who are mostly farmers or craftsmen
Employs local crafts and keeps the tradition alive
Himachal Pradesh, TemplesEmploys unskilled labour
Disadvantages
Lack of availability of building materials
Time-consuming to construct
Laborious
Decline
Himachal Pradesh, Residence
With urbanization and newer construction materials available in the market, that deliver buildings much faster, the traditional techniques started losing its relevance over time. Also, with rising demand for natural materials, the rapid loss of forest covers resulted in the enforcement of Environment Forest Act that banned the use of any more wood from the forests.
^Belz, Melissa Malouf (2015-05-28). "The Role of Decorative Features in the Endurance of Vernacular Architecture in Kinnaur, Himachal Pradesh, India". Geographical Review. 105 (3): 304–324. doi:10.1111/j.1931-0846.2015.12068.x. ISSN0016-7428.