R-value (insulation) as ASHRAE 90.1 and the IECC prescribe U-values. However, R-value is widely used in practice to describe the thermal resistance of insulation products, layers, and most other parts of the building enclosure (walls, floors, roofs). Other areas of the world more commonly use U-value/U-factor for elements of the entire building enclosure including windows, doors, walls, roof, and ground slabs. The SI (metric) unit of R-value is whereas the I-P (inch-pound) unit is For R-values there is no difference between US customary units and imperial units, so the same I-P unit is used in both. Some sources use ″RSI″ when referring
Construction Research and Innovation Strategy Panel funding with sectors such as aerospace and pharmaceuticals. The Design Task Group's report was turned into a book chapter by the group's chair, Giles Oliver. After chairing the Task Group on Value, Richard Saxon went on to publish "Be Valuable" through the industry body Constructing Excellence, while the Task Group report was used as the source of an academic paper. The Pearce Report "The Social and Economic Value of Construction" (2003) was used for a special issue of the journal "Building Research & Information", edited by Jim Meikle. Construction Research and Innovation Strategy Panel The Construction Research and Innovation Strategy