Hood cap for ventilation and cinstructuon method thereof

摘要

The present invention relates to a hood cap (100) for ventilation, wherein the hood cap (100) is installed in a through hole (1) formed in an outer wall (W) of a building inside a building, so that the hood cap (100) can be removed by riding a rope from the outside of the building. It is possible to prevent various safety accidents that may occur by installing the hood cap 100, the installation work of the hood cap 100 is performed easily and simply, and the work time and cost are significantly reduced. After being installed in the through hole 1 of W), the blocking cap 30 formed in the housing 10 blocks the through hole 1 on the outside of the housing 10, so that rainwater or foreign substances from the outside cannot pass through the through hole 1. A hood cap 100 for ventilation capable of preventing the inflow into the building through the ventilation hood cap 100 is provided.