Virginia Cooperative ExtensionGrisso, Robert D.Walker, Martha A.Ignosh, John2020-05-142020-05-142020http://hdl.handle.net/10919/98300Higher R values corresponds to greater insulation effectiveness. The R value of thermal insulation depends on the type of material, the thickness and density. When calculating the R value of multilayered installation, the R Values of the individual layers are added.2 pagesapplication/pdfen-USVirginia Cooperative Extension materials are available for public use, re-print, or citation without further permission, provided the use includes credit to the author and to Virginia Cooperative Extension, Virginia Tech, and Virginia State University.Extension publicationhttps://www.pubs.ext.vt.edu/content/dam/pubs_ext_vt_edu/2901/2901-9006/BSE-293.pdfInsulationheat flow