How to find? What are the things to choose?
We offer you an opinion of an expert who only commented on the pros and cons, without imposing a decision.
Our old building has its peak during the fifties and early sixties of last century. Then build a classical technology with the use mainly of bricks, concrete and wooden frames. In most buildings of this period, the thickness of external walls up to 80 cm with plaster. Work is in full compliance with valid then the technologies and terms, but in very small volumes of housing construction. Everything is solid - the pipes of water systems in certain buildings and double wooden doors and windows from this period are still in operation. The panels have not yet occurred, developments in materials and technology were then extremely rare. Not provided and special measures to protect against earthquakes.
The peak and the peak of the new construction we can talk since 2000. It was in this period clearly identified some significant differences with the classical works from the middle of last century.
First, the market took a lot of new materials. The efforts of designers and builders were focused in two areas - insurance of buildings against earthquakes in recent years - to reduce energy consumption of buildings. Especially for earthquakes is not bad to hear experts from the guild of architects and engineers, consultants in construction. They are clear - a building built in compliance with the technological requirements in the middle of last century is equally resistant to earthquake as a building a few years ago in strict compliance with anti-measures.
What's more interesting when considering the pros and cons of both types of construction - construction costs of a building represent only 20% of all costs that owners make during its entire lifecycle. Second, repair of the dwelling old building cost about 3 times more expensive than upgrading to a new, as 7-8 year housing built according to the latest requirements