At a time many of those who went in search of alternative energy resources are finding themselves at the receiving end, construction materials which can reduce energy consumption of buildings by over 30 to 40 per cent are getting more buyers in the state.
A number of multinational business houses, including world?s leading financial advisers Ernst and Young, have incorporated this technology, mainly Europe-based, with several energy-efficient features for their buildings in the state.
Light-weight clay hollow bricks, clay-ventilated facades, roofing sheets and tiles with recycled cellulose fibre, fabric false ceilings are fast gaining popularity in the state with some major business houses opting for them in the last three years.
As many as 200 multi-storied buildings in the state have used these materials which reduce heat inside the building as these are thermal and acoustic insulators.
?Light-weight clay hollow brick was available before also.
?But it had not captured the market as it did not belong to any organised sector. Things have changed and now there are many takers as it is professionally manufactured,? said architect Jacob Cherian, who is in the profession for the last two decades.
?It works on the principle -- reduce, reuse and recycle. Though these materials can add up to 15 to 20 per cent to the initial cost of the building, the amount is compensated in five to 10 years by less energy consumption.
Light-weight clay hollow brick is manufactured at a factory in Bangalore which uses Australian technology.
?The brick could also be made from desilting sand in water reservoirs,? said P K Abhay Kumar, managing director of a firm that markets these products in the state.
?Light-weight clay hollow brick has double the strength of normal brick and less width. Likewise, the cost of plastering is also less.
?Thus planned use of clay hollow bricks can reduce the cost of foundation building by over 25 per cent,? said Reji Zaccaria, structural engineer who had constructed his house using these materials.
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