Trench Cut Roof Ventilation

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

Trench cut roof ventilation.

This video gives detailed instructions on how where and why to ventilate a flat roof including how and why to make trench cuts. Open the trench and operate hoselines. 5 when fire shows from observation cuts. The trench cut otherwise known as strip ventilation is a long narrow ventilation hole that acts as a fire break on the roof of a structure that is being attacked by fire.

0bdecking decking is the material used to comprise the base and exterior covering for the roof. The base is the material attached to the roof rafters. Ventilation flat roof operations 2. A structure fire was reported at around 6 a m.

In the 800 block of fairview avenue at the kenwood apartments in arcadia california. The 7 9 8 ventilation cut provides a preset plan for conducting a cut. A trench is cut after the main ventilation hole is cut and extended and inspection holes are made to monitor extension in the cockloft. Large vent h over fire area.

Far too often when members cut a roof they make. Position hose lines underneath and above. The base material can consist of solid wood. 2 observation cuts between fire area and determined trench location.