BBA, the British Board of Agrement, have tested Superfoil SF60 to EN12667 and issued test report certificates. (see the down load section of this web site). Testing to standard EN12667 includes the test standards EN8301 and EN6946 and meets Building Regulation part L requirement of BR443, for regulation requirement for the testing of thermal performance of reflective insulation. Superfoil Insulation Systems use reflective technology to maximum thermal performance of a roof construction.
R values in Roofs with 1 layer of SF60 are R4.42 and one layer in walls is R4.88. when installed to our standard installation system method. For sloping roofs achieving U values of U 0.18 is easy with a 20mm HD foam board between or below rafters. For walls a U value of U 0.19 is achieved with 1 layer of SF60, this is far in excess of the usual building regulation requirement for walls of U 0.28. U values as low as U 0.1 can be achieved in other system combinations.
In addition Air tightness and Radiant Barriers are incorporated in the Superfoil Insulation System to reduce solar gain and air movement losses.