Thermal conductivity common use in the construction and textile industries. The construction industry makes use of units such as the R-value (resistance) and the U-value (transmittance). Although related to the thermal conductivity of a material used in an insulation product, R- and U-values are dependent on the thickness of the product. Likewise the textile industry has several units including the tog and the clo which express thermal resistance of a material in a way analogous to the R-values used in the construction industry. There are a number of ways to measure thermal conductivity. Each of these is suitable for a limited range
Construction industry of Romania of the 13 states included from the Emerging Europe for the infrastructure business environment. The construction industry is forecast to reach a value of RON36.2 billion (US$13.41 billion) by 2011, from an estimated RON20.88 billion (US$7.43 billion) in 2006. Prior to the start of the crisis, the Romanian construction industry was one of the most vibrant in the European Union, but this changed dramatically in 2009, when construction output fell by 15%, with a similar reduction following in 2010. In 2011 Romanian construction market should finally lead to a measure of stabilisation on the market, but growth is not likely