A roofing system in a building structure having a ridge vent includes strips of composite material having a base material adapted to form a hermetic seal with the top surface of a roofing section and recesses in a top surface in which an air permeable material can be positioned. A strip is applied to...http://www.google.com.au/patents/US7594363?utm_source=gb-gplus-sharePatent US7594363 - Ventilated roof system with ridge vent
