ThermHex & Panel Systems Celebrate 2000th Light Weight Roof for Camper Vans ThermHex Waben, producer of honeycomb cores for economic sandwich panels and parts, and Panel Systems, a British supplier of insulated panels, are celebrating the introduction of lightweight polypropylene honeycomb core in the elevated roofs of 2,000 Ford, Volkswagen and other camper vans. The demand for the roof panels has increased significantly and is so successful because the honeycomb is up to 80% lighter than the alternative material – plywood and does not have severe operational problems in the rain. If plywo...