va-Q-patch is a thermal insulation system consisting of a vacuum insulation panel (VIP) covered on both sides with a full surface polyethylene (PE) foam lamination. It is primarily used as a high-performance insulation layer for heat storage tanks to increase their energy efficiency to a label rating of A and A+ according to the EU regulation 812/2013. The standard configuration includes a thin and adhesive PE foam lamination on the tank side to protect the VIP against welding defects and metal shavings amongst other impacts and to ensure a perfect connection to the tank. va-Q-patch is delivered in a space-saving, flat state and can then be bent around the tank at the installation site. It can be used as an additional layer such as beneath an ordinary polyester fleece insulation.