R-value (insulation) typical straw bale houses have very thick walls and thus are well insulated. Snow is roughly R-1 per inch. Brick has a very poor insulating ability at a mere R-0.2 per inch; however it does have a relatively good thermal mass. Note that the above examples all use the U.S. (non-SI) definition for R-value. When determining the overall thermal resistance of a building assembly such as a wall or roof, the insulating effect of the surface air film is added to the thermal resistance of the other materials. In practice the above surface values are used for floors, ceilings, and
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