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
Building Materials Holding Corporation Building Materials Holding Corporation Building Materials and Construction Solutions (BMC) is an American construction supply company with corporate headquarters in Raleigh, North Carolina. The company operates principally in the South and West regions of the United States and has in excess of 10,000 employees. BMC was founded in 1987 as a building materials distributor. BMC distributes building materials, manufactures building components, and provides construction services across the U.S. Ready-Frame was launched in 2013. This service provides professional builders with computerized pre-cut framing lumber for constructing roof and floor trusses. The online business, BuildwithBMC.com, was launched in 2015 and carries over