Roof penetration for ventilation and chimneys

Engineering communications in the house require adequate infrastructure. In particular, the chimney and the ventilation system provide for the organization of the outlet through the roof. Previously, this possibility was provided by means of special openings, which, after installation, were appropriately sealed with sealing means. Today, manufacturers of engineering equipment offer more reliable solutions, among which roofing penetration, which is arranged directly in the construction of the roof.

What are the tasks of roofing?

To determine the purpose of such additions to the roofing pie, it is worth looking at the function of the roof itself. It should protect the house from precipitation and other external influences, while maintaining the optimal parameters of heat, noise and waterproofing. The presence of holes and cracks in the roof is not allowed, therefore, communications passing through the roof must be carefully sealed in places of contact with the finishing material and power structure. In turn, roofing penetration initially creates a minimum of free space, which is not used for engineering purposes. At the same time, it contributes to the effective removal of smoke and air, protecting the roof materials from heat. Ventilation systems, by the way, often lead to the formation of condensate in the places where the air flows out. Special knots for such channels interfere with the processes of drip formation, removing moisture outward.

Types of penetrations

There are several classifications of penetrations for the roof. First of all, it is necessary to focus on a specific purpose. Manufacturers produce special models for the organization of skipping antennas, pipes, ventilation ducts and chimneys. The belonging of a node to a certain group determines both the structural design and the material of manufacture. So, not all kinds of perforations can coexist with a stone chimney. Also, plastic devices are not combined with certain types of metal pipes. The nodes are different in form. The most common are circular and square sections, but in some cases only roofing penetration, which has its drawbacks, but also advantages, can help. Constructions with such a cross section, for example, can be used in close conditions or when laying a non-standard coating.

Methods of management of penetrations

All penetrations provide the possibility of removing air through the roof. Thus, a channel is formed that can also facilitate the passage of cold air into the attic space. In the simplest models, this nuance is not taken into account and the nodes in a constant mode provide uncontrolled passage of air. Better penetration of the roofing provides for the possibility of controlling the flow through the valve. In inexpensive entry-level systems, manual control of the gate valves is provided, but you can also find many automated models that can be controlled from a distance. Moreover, devices with intelligent control systems that control valves are becoming more popular, being guided by current weather conditions.

Universal penetration

Nodes of this type are, in essence, insulating tubes that fit organically into the opening thanks to the silicone shell. However, in this configuration, additional protection should be provided around the passageway. The main task that such penetrations perform is the mechanical protection of the pipeline or chimney from damage. In addition to the external silicone coating, the unit has a metal layer and thermal insulation. This is the optimal roofing for circular pipes of ventilation systems, as they can be adjusted to any bend. What is still important, thanks to the stepped structure, such devices allow you to channel the channel in one direction or another as needed. The orientation of the pipe is also possible in traditional penetrations, but a change in direction in such cases requires great effort.

Mounting

The technique of installation largely depends on the specific type of penetration. But in most cases, installation involves the execution of three stages. First of all, the base is laid on which the knot will stand. It can be a concrete or metal beaker that will support the structure by the type of foundation. The second stage involves the direct carrying out of the communication pipe through the node, as well as the execution of crimping operations. Completing the installation of roofing penetration by mechanical fixation on the roof surface. For this use self-tapping screws, mounting brackets, screws and nails. The concrete way of fastening depends on the finishing material of the roof.

Accessories for roofing

Additional components that increase the reliability, functionality and durability of the roofing unit include crimp accessories, sealing and heat-insulating materials. For example, with a coating of silicone or polymer elastic fabrics, an isolated area around the installation site can be provided. Due to this reinforcement, the roofing will last longer and will not allow moisture and debris to pass into the opening. In some cases, it is advisable to use the elements of mechanical strengthening. Such decisions are applied for the purpose of insurance in case of windy weather.

How to choose the right drill?

Initially, it is necessary to focus on dimensional parameters. The larger the ventilation opening or the chimney, the thicker the walls of the assembly should be. In addition, the insulating qualities of excavation are taken into account. For example, if the plastic can ensure tightness, then in terms of thermal insulation it will be effective only if it is further strengthened. On the other hand, metal roofing for chimneys must necessarily have an anti-corrosion coating. Actually, because of the risk of development of negative rusting processes, experts do not recommend resorting to such models.

Conclusion

To consider the issues of additional equipment of the roof should be approached even at the stage of designing the roof. In the design itself, it is possible to provide technical conditions for both the communication channel and the node installation. For example, a wide penetration roofing for ventilation may require additional fastening in the rafters area. But this possibility is not always allowed in the finished facilities. Also, you should not save and give up the modern offers of manufacturers of penetrations. The same automated models will save you a lot of trouble during the operation of the installation. For example, the latest versions of such nodes allow you to programmatically adjust the control of the valve - so that it will automatically select the modes of operation depending on the season and temperature amplitudes. However, simple installations without valves should not be ruled out if operation in a warm region is planned.