Best strategy and technology to build an energy efficient, earthquake resistant, low cost house

All the three requirements can be met using ICF technology, at least in India. ICF or Insulated Concrete Formwork is a technology which uses modular, hollow, Polystyrene foam, interlocking blocks (ultra light weight) stacked together(with horizontal reinforcement laid in each layer) up to 3m height, including doors and windows and then concrete is poured in the hollow portion. This creates load bearing reinforced concrete walls which are monolithic giving the building a Box structure joined on all edges, which is very strong in all disasters including earthquakes.

The polystyrene faces with 5 air barrier layers (2 layers of polystyrene foam, 2 layers of polymerized plaster on top of them and 1 layer concrete) give the house a great insulation value (R-19) with up to 0.5 ACH (Air changes per hour) and thus minimal air leakages. The heavy concrete with high thermal inertia ensures the external temperature fluctuations are delayed by upto 12 hrs from reaching the living space. These three properties of ICF buildings make them very high in energy efficiency.

In the Indian context, these buildings are being delivered at disruptive prices and are able to compete quite well with conventional technologies , especially so, since these buildings come up in less than half the time. The technology is being used for low income PMAY buildings thus indicating the competitive pricing of these.

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We undertake building envelope insulation (roof and wall), roof waterproofing, application of EPS-based design elements (fins, shadings, screens, etc.) and the construction of 100% insulated, disaster-resistant buildings in India and abroad.

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