Precipitation and the ventilation pipe: methods of protection

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The principle of operation is based on aerodynamic laws. Inside the deflector there is a diffuser, which discharges the air when the wind hits the side walls of the deflector (more details: “How to make a deflector on a pipe - possible installation options”). As a result, the pressure in the cylinder decreases, and the thrust increases.

To protect against foreign particles getting inside, the device uses a special cap consisting of two parts:

The aerator is becoming no less popular. It is used when the slope length exceeds 3 m, and natural draft is not enough for the necessary air circulation. The aerator helps to circulate air between the roof covering and the heat-insulating layer.

To protect ventilation ducts from seasonal precipitation, you can chinese malaysia data a ventilation mushroom. It is mounted on the top of the ventilation pipe. Vertical posts are placed under the conical cap.

The protective device is most often made of stainless steel or polypropylene. The main requirement is the material's resistance to corrosion. Since it is installed at the highest point on the building, no additional maintenance is required.

Correct placement of ventilation ducts

The height of the pipe depends on the degree of inclination of the slope

The design of the passage unit when bringing ventilation to the roof
The pipe can be made of polymer - it is durable

The mushroom is mounted using hardware fasteners

A ventilation mushroom on the roof should be installed not only to protect against precipitation - it prevents wind from blowing into the air duct. The mushroom can also serve as a decoration for the building - manufacturers produce it in a variety of colors.

It is easier to install the mushroom on ventilation ducts with a round cross-section.