Formance Roof Panels, Structural Insulated Panels (SIP) are constructed using 11mm OSB facing board and various thickness EPS core. Formance Design Guide is to be used in similar scope to NZS3604:2011 also by designers and architects without further SED. It has been pre-engineered and Codemark Certified. 265mm Formance Wall Panel, with 243mm EPS core = R7.2
