They are the most cost-effective.

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Depending on the ventilation system's parameters, designers select the components that best suit its properties.

General requirements for structures:

At low ambient temperatures, condensation accumulates on the walls of the ventilation duct, which can lead to damage to the element.

Necessary characteristics for ventilation pipes: Smooth inner surface, due to which air resistance is reduced; To increase circulation capacity, pipes should have a minimum number of connections; Weight.

Lightweight structures are easy to install. In case of system modernization, they are also easier to disassemble. Small wall thickness with sufficient rigidity. Allows to increase the capacity of the ventilation shaft.

Ventilation boxes are produced in various sections. They chinese malaysia data be round, rectangular and square. Cylindrical boxes allow air to pass through them most freely.

The most popular materials for roof exhaust pipes remain galvanized steel and plastic.

Galvanized products


Their zinc coating provides good resistance of the steel product to corrosion. Galvanized steel structures are quite strong despite their small thickness (more details: “Types of galvanized ventilation pipes and methods of their use”). The disadvantage of using this ventilation pipe on the roof is its weight.

Plastic products
One of the most popular for ventilation systems. This is due to a large number of advantages and a small number of disadvantages. The main advantage of plastic ventilation pipes for roof exhaust is ease of installation, light weight, and low cost (read also: “Which plastic ventilation pipes to choose and how to install them”).


Even a person without special skills can install this structure, you just need to follow safety rules when working on the roof. The inner surface of the pipes is very smooth, which allows the system to work productively. The plastic itself is resistant to corrosion.