Trench Cut Roof Ventilation

A trench is cut at least 20 feet from the main vent hole and.

Trench cut roof ventilation.

A trench is cut after the main ventilation hole is cut and extended and inspection holes are made to monitor extension in the cockloft. Open the trench and operate hoselines. Center rafter can also be used for cutting strip ventilation on 1 x 4 or 1 x 6 sheathed roofs. In the 800 block of fairview avenue at the kenwood apartments in arcadia california.

This video gives detailed instructions on how where and why to ventilate a flat roof including how and why to make trench cuts. Large vent h over fire area. The base material can consist of solid wood. A structure fire was reported at around 6 a m.

The base is the material attached to the roof rafters. Position hose lines underneath and above. 2 observation cuts between fire area and determined trench location. Far too often when members cut a roof they make.

Ventilation flat roof operations 2. The same techniques can be used on a slight pitched peaked roof as well. The 7 9 8 ventilation cut provides a preset plan for conducting a cut. Cut trench at narrow point and pull ceiling but do not pull trench.