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

Posted: Mon Feb 17, 2025 8:28 am
by zihadhosenjm40
To increase circulation capacity, pipes should have a minimum number of connections;
Weight. Lightweight structures are easy to install. They are also easier to disassemble in case of system modernization.
Small wall thickness with sufficient rigidity. Allows to increase the capacity of the ventilation shaft.
Ventilation boxes are produced in various sections. They can be round, rectangular and square. Cylindrical boxes allow air to pass through them most freely.


Galvanized products
They are the most budget-friendly. Their zinc coating provides chinese overseas british data 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 downside 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 design, you just need to follow the 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 ventilation pipes themselves are resistant to corrosion.

Height of the ventilation riser above the roof
One of the questions on how to install an exhaust pipe correctly is determining its height above the roof. To do this, it is necessary to follow the requirements of SNiP, according to which it is associated with the type of roof, diameter and some other parameters.

Here are some of them: