Ridge - and / or ridge formation with a central part of a mixed fabric

摘要

Ridge - and / or as a ridge ventilation element characterized in that it is a structurally designed as desired and air-permeable, preferably smooth, middle part made of industrially produced glass fibers, preferably made of glass fibers in combination with any other desired, natural and / or artificial fibers, in tissue and / or knitted material, or a braid or nonwoven fabric or scrim, as well as partially corrugated metallic edge areas made of plastic or metal, preferably made of aluminium, or other mouldable materials.