Country specific regulations / standards have to be considered before international standards are simply adopted.

Revision work on SANS 1530-1 Pre-fabricated panels for thermal insulation Part 1: Panels with two impervious facing sheets is at an advanced stage. This standard will be a product standard which in particular covers self-supporting sandwich panels with double-sided metal facings and a thermal insulating core.

These will include not only the definition of mechanical values, but a number of other important characteristics, such as:
• Thermal transmittance
• Thermal stability of core materials
• Adhesives & bonding
• Mechanical properties of panel
• Durability - Ageing and long-term behaviour
• Fire resistance
• Dimensional tolerances for sandwich panels
• Water and air permeability

In addition to the above the TPMA is in the process of developing a standard to ensure installation instructions and principle details are carefully followed in order to achieve the intended functional performance of  self-supporting double skin metal faced insulating panels.