BITUMINOUS COATING MATERIAL AND A PROCESS FOR PRODUCING A BITUMINOUS COATING ON A SUPPORT

摘要

A bituminous sheet or web coating material (I) is on the one side provided with a heat activatable adhesive layer (3) optionally covered by a plastic film (5), wherein the adhesive layer is provided with a pattern of close grooves (4) with intermediate unbroken ridges, and a process for forming a coating on a support is perform ed by heating such coating material (1) to decomposition of said plastic film (5) and activation of the adhesive layer (3), the activated adhesive layer (3) being pressed against the support, e.g. a roof.