Weathering Slate 508 x 609mm in Black Rubber

* Aluminium outer * Flexible PVC collar * The built in 20deg pitch allows adaptability to almost any roof pitch including 45deg * The pull tab design and easy smooth tear grooving is intended to eliminate razor knives and allow for a circular hole * The addition of fire retarding agents milled directly into the rubber compound creates a self extinguishing feature which enables it to be used with type "B" vents. Listed with IAPMO certification No.3121 * A "C20" ASTM additional requirement was added t...