Building stone conservation

The turn perseverance and its activities have an important role to play in socioeconomic development and quality of life. turn activity accounts for more than than 50% of the national outlays. Building Construction costs registered an increase in rates category after year at scales much speedy than inflation. It is seen that in view of the increase in cost for basic input materials like steel, cement brick flavor and other materials as well as the cost of expression labour, buildings cost increase at close to 20% to 30% annually even when inflation is in single digit.Even though income levels of people argon by and large brought in line with the levels of inflation through inflation indexed rise in salaries, year after year, housing is moving beyond the reach of the majority of the people. The reducing housing size for miscellaneous categories in consecutive years in respect of the plinth areas, nature of specifications even with increased income levels would bespeak the r apid increase in cost of construction.The urban population growth has increased to more than 30%, and has made the need for adequate housing for low income people a very important disturb for the government. However, the rush to respond to these needs seems to result in a low quality housing that does not adequately match the needs of these people. In countries where construction contributed 3-5% to gross domestic product, an implication for development policy was that unless the construction application grew faster than the economy as a whole it might constrain national development (Han and Ofori, 2001).The construction industry is a main contributor to the national economy, therefore the more developed the industry is the more the contribution to the economy. Similarly, a developing economy leads to more construction projects and purchasing ower means breakable projects. The connect relation between the construction industry and the economy makes it clear that development can not befall without the other, although a growing construction industry does not necessarily mean a developing industry nor economy.In fact, the increase in construction prices could cause an artificial indication of the contribution of the construction industry to the gross domestic product and economy. Furthermore the increase in construction costs always occurs faster than the increase in the GDP/capita. Approximate costs generally include mechanical and electrical installations, but exclude furniture, loose or special quipment, and external works. They also exclude fees for professional services and permission fees. The costs shown are discriminate to local specifications and standards.This should be borne in mind when attempting comparisons with similarly described building types in other countries. wizard of the main barriers to sustainability and sustainable construction willing be affordability. The construction industry in developing countries cannot afford to make any d ramatic changes but has to start improving the existing technology and local resources it has. In less than two decades, the construction costs have increased by a considerable rate. This is in respect of the normal types of housing construction.Still higher levels of costs are registered for using better finishes and amenities. The current speckle of un- affordability, necessitates the need for using economical solutions and appropriate designs and construction materials which can bring down the cost of construction within the affordability levels of the people, as identified in the Agenda 21 for sustainable construction in ontogeny Countries which concerns with construction economic efficiency through national and international housing policies that ensure adequate, affordable and sustainable housing.Authors such as Adebayo (2000), McIntosh (2000) and Aboutorabi (2000) has addressed out that the sustainability development of the built environment is significantly linked to affo rdability, and affordability will remain a key barrier to sustainability. CONCLUSION The development of the construction industry should lead to affordable construction activities and materials, which is one of the main issues of sustainability in the developing countries. It seems that the development of the construction industry to achieve efficiency, quality, affordability and because sustainability is strongly tied to the economy.