Walling materials are important because it plays an immense role in the total cost of the building, life cycle cost, and energy content. It accounts for more than 15% of the total cost of the building in Sri Lanka. Not only the cost but also, the roof and wall material is important in reducing the external heat gain, they are our third skin. Comparing different walling materials, however, also ranking those walling materials is the extended objective of this research. Then this study would help the funding agencies and general public to understand the real value when selecting walling materials for their affordable houses and choose on the best suitable material considering the embedded energy and total life cycle cost.
The materials you use for the walls in your home will affect how your home looks (both inside and out), how it will stand up to fires, wind and physical stress, and how energy efficient your home is as a whole.