Ventilating system for a roof

摘要

A roof venting tube (3) is the main constituent of the venting system (1) and works with devices for conducting air flow in the direction of the free tube end. The tube is provided with a cover cap (2) which can be fitted to the free end of the tube. The cap consists of a top (5) and walls (8) connecting to the outer edge areas (6,7) of the top. Outside the free flow cross-section (16) of the tube, cap ends (17,18) extend in the direction of a roof surface of the building. The cap ends and the devices for flow conduit limit flow outlet apertures (30) accessible crossways to the longitudinal direction of the roof venting tube.