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 Council its membership means that CIC (like a small number of other bodies, including Constructing Excellence) can speak with authority on issues connected with construction without being constrained by the self-interest of any particular sector of the industry. As representative of the views of professionals, it has a seat on the government/industry body, the Strategic Forum for Construction. The Construction Industry Council developed and operates the Design Quality Indicator (DQI) tool to measure the design quality of buildings. CICAIR Limited, a specially created wholly owned subsidiary of the CIC, is the sole body authorised to approve Approved Inspectors to undertake building