Strengthening frame for Mercedes Sprinter, VW LT LWB high top roofs - no cutout in driver cab. For vehicles equipped with a high roof as standard and roof skin.The frame is glued to the roof with Sikaflex and additionally screwed with steelrivets (5 mm). The strengthening frame is designed following the guidelines fromMercedes and VW. Maximum cutting width, on the side the roof skin is attached tothe inner panel of the van.