Adjoining the roof to the chimney pipe: features of the device for adjoining the roof to the chimney pipe with video instructions. How to make a ventilation passage node through the roof: arrangement of roofing penetration Leading a brick pipe through the roof

Dear Konstantin!
I would never intervene in the dialogue if it were not for two (!) Burned down houses of my friends. One of them burned to the ground before my eyes: the owner was running around in confusion with a garden hose pouring out a pitiful trickle of water, and red-hot drops of "non-combustible" foil rockwool fell on his hands. At the same time, a fire in the form of smoke from under the ceiling was noticed literally a minute later, and when firefighters arrived forty minutes later, they had to water the burned-out skeleton. In both cases, the clinical picture is the same: sandwich chimneys are to blame. Only in the first case they were mounted by the owner himself (although according to the instructions, but with exceptions), in the second - by professional artisans recommended in the store, who, however, merged somewhere. In both cases, I emphasize especially, everything was done according to the instructions of manufacturers and sellers.
So: in both cases, the fires did not occur at the time of the first "trial" heating, but after about a year of rather active operation. Moreover, in both cases, the fire occurred at the place where the sandwich passed through the ceiling. As it turned out, the material enveloping the inner tube tends to settle slightly. As a result, an unprotected cavity is formed at the junction of two sandwiches. And if the joint also burns out (in the first case, the owner managed to hide it in the ceiling, in the second it was a little higher), then the fire in the void between the ceilings cannot be extinguished. In the cavities of the frame with ventilated facades, the fire spreads rapidly.
In your case, I can assume that a similar problem is also possible. The burning of the inner tube, which is often (but not always) evidenced by the tint colors on the outer, is a dangerous thing. It can "go" not only along the joint, but also along the vertical seam. In addition, this may happen not in a month, but in a year, when you will already forget about all the questions asked today.
Dear Konstantin! Do you need it?

P.S. Rural firefighters then told us that almost 80% of fires are due to chimneys, and as a rule, because of sandwiches. Conclusion: you can do everything according to the instructions, but never relax.

Many thanks for the detailed answer. A few notes. In my version, not mineral wool is used, but expanded clay. And I do not see the possibility of the formation of voids, since these voids will instantly be filled from above.
The second - the passage between the floors is well insulated for me, the distance of the additional beams is about 50 cm. I am interested in the passage through the roof, at a height of about 7m from the stove, where the Master Flash stands and there will be no ceilings. The design is such - Master flash, insulation and immediately sloping ceiling. Those. the thickness of the whole structure is 200mm.
And I saw the fires myself - the neighbors had three fires in 4 years. One because of the passage between the first and second floors, the other because of the small distance of the chimney outlet above the roof. None because of the passage through the roof.

The chimney is one of the most important parts of heating structures. Its correct functioning is the key to safety. Most of the fires and poisoning by combustion products are associated precisely with errors in the choice of materials for the chimney and its installation. At the moment, the most popular are sandwich pipes for chimneys. They have good fire resistance and are quite easy to install. However, such a chimney also has a number of disadvantages.

Sandwich - this type of pipe received such a name for its layering by analogy with the named product. The inner and outer layers of such pipes are represented by metal cylinders, and the middle one is a layer of thermal insulation.

Metal for the chimney began to be used a long time ago. A simple example is the chimney of an ordinary potbelly stove. However, soon after commissioning, it became clear that metal pipes have a number of disadvantages. The problem was that metals, having good thermal conductivity, quickly heat up and give off heat to the environment, and there is always a risk of ignition.

The solution turned out to be simple - a metal pipe was wrapped in a layer of thermal protective material. However, such material does not tolerate environmental conditions well and is not very attractive from an aesthetic point of view.

Sandwich pipes are the next solution in the evolution of metal chimneys. Another metal pipe is placed on top of the thermal insulation layer, which protects the inner two layers from external influences and does not spoil the appearance of the building.

It is important! Sandwich pipes can be purchased ready-made, but you can do it yourself by choosing the materials of the required parameters. At the same time, it is worth remembering that the inner pipe should be more expensive and better than the outer one, but smaller in diameter, and the thermal insulation layer is thicker, the higher the combustion temperature of the fuel in the heater.

The inner cylinder is made of stainless steel. This material is less susceptible to corrosion under the action of combustion products. Steel must be of high quality and high-tech. They prefer those options whose seams are welded using the TIG method - the most reliable and wear-resistant, but also the most expensive.

Ceramic tiles have a long service life. And the best confirmation of this is that old tiles are often used for the restoration of buildings. In addition, archaeological finds also confirm the long service life of this roofing material. The age of some samples, for example, exceeds 5 thousand years.

It is better to solve such a problem by replacing the slate sheet, but it is quite difficult to deal with this alone. The quickest and easiest solution would be to lay the slate on the damaged area or seal it (the place). If nail holes are visible on the slate, then they can also be sealed; as an option - you can solder a piece of roofing material using a burner.

The roof load indicator can be from 70 kg to 200 kg per 1 m² of horizontal projection. Tellingly, the roof - no matter how much it weighs - must also withstand the so-called temporary loads, which include repair work, a layer of snow in winter and its (snow) cleaning.

The soft roof has its drawbacks, and significant ones. So, it is not always possible to completely seal the vapor barrier layer, because water vapor, getting into the layer of insulating material, accumulates there (after all, due to the dense waterproofing carpet, moisture does not evaporate). Over time, the moisture accumulated in the insulation begins to flow down and wet spots appear on the ceiling. In addition, moisture freezes at sub-zero temperatures, its volume increases, and the waterproofing, as a result, comes off the base. Even during operation, the waterproofing is subjected to mechanical / climatic influences, due to which cracks appear on it. Through these cracks, water enters the house, and it is sometimes quite difficult to detect and eliminate the cause of such leaks.

Hanging rafters are those that rest only on two external walls. This is a type of roof truss, to which the attic floor is attached. If the span in the hanging rafters exceeds 6 meters, then a vertical suspension beam is additionally attached between the upper ends of the rafter legs. If the span varies from 6 to 12 meters, then the design of the rafters is complemented by struts, which reduces the length of the rafter legs.

To ensure a long service life and optimal conditions for the use of metal tiles, it is necessary to periodically inspect the roof. To keep the polymer coating clean, rainwater is often enough, but fallen leaves and other contaminants are not washed off in all cases. Therefore, at least once a year it is necessary to clean the surface. The same applies to drainage systems.

Use water and a soft brush to remove dirt and surface discoloration. You can clean the roof with a jet of water (pressure should not exceed 50 bar), and to remove stubborn dirt, use detergents intended for painted polymer coatings. Before starting work, be sure to read the instructions for the detergent in order to make sure that it is exactly suitable for such a surface. If the dirt does not come out, you can try to remove it with a piece of cloth soaked in alcohol. The roof must be washed from top to bottom, so that the detergent is completely washed off. Then the surface and drainage systems are washed with water.

As for the snow, it is usually rolled off the roof, and what remains is quite consistent with the bearing capacity of the structure.

It is important that the material that will be used for roof insulation has good thermal insulation characteristics and is:

• safe(that is, it did not contain harmful substances);
• effective(insulation material must meet all energy efficiency requirements);
• reliable(the original properties of the heat insulator should not be lost throughout the entire operational life of the structure).

The main function of a vapor barrier is to prevent the appearance of a "dew point" inside the building. For those who don't know, the "dew point" refers to the temperature at which the level of air humidity is more than 100%, as a result of which excess moisture turns into dew (condensation occurs) and freezes. Moreover, this causes mold and fungus to appear - both inside the roofing pie and in the building itself.

It is difficult to overestimate all the advantages of thatched roofing. In summer it is cool under it, and in winter it is warm, the building itself “breathes” and generally lives a quiet, calm life. Even the sounds of rain in the presence of such a roof are “extinguished”, it is characterized by resistance to winds and other atmospheric influences. In addition to all this, a thatched roof allows you to significantly save money on the foundation and ceiling, since they will not need to be counted on for heavy loads.

A thatched roof can be laid on a roof of absolutely any design, there are no restrictions in terms of shape in this case. Finally, the service life of such a roof reaches 50 years. It's not worth talking about the uniqueness of the design at all!

The arrangement of the chimney is a responsible job, which is usually entrusted to experienced professionals. The safety of the owners of the house, as well as the performance of the furnace, depends on the quality of its implementation. Many owners decide to do this work on their own. That's quite possible. But for this you will need to familiarize yourself with the basic rules for arranging such a system. There are a number of nuances of how to make a chimney pass through the roof, which will be discussed in detail later.

Why is it important to remove the chimney correctly?

Many people decide to equip the chimney passage through the roof on their own. This leads to various negative consequences. If the owners of the house do not know the intricacies of this process, they can turn to specialists. Their work requires additional costs. However, experienced builders will do their job well. Wanting to save money, you need to learn all the nuances of this process.

If you lead the chimney through the roof incorrectly, moisture gets into the leaky joints. As a result, all the materials from which the roof is made get wet. Fungus and mold can appear in load-bearing structures. They destroy ceilings and insulation materials. The microclimate in the house can become unhealthy. To extend the life of the roof, it is necessary to create sealed joints.

Wooden structural elements must be treated with antiseptics and fire retardants. In some cases, the chimney may rest against the ridge beam. It will need to make a recess. On both sides, the beam is mounted on racks.

To create a chimney passage through the roof with your own hands, you need to mount a metal apron on the roof. With one edge, it should go onto the surface of the chimney at a level of 30 cm, which protrudes above the level of the roof. The second edge is brought under the roofing material in the place where the cut was made. This option is suitable for those pipes that are at a certain distance from the ridge.

If the chimney exits close to the top beam, then a metal apron will need to be brought under the ridge element. On the pipe itself, the steel sheet must be inserted into the strobe. It is made in advance. It is fixed with straps. Also, the entire system is carefully sealed with special insulating compounds.

If the width of the chimney from the side that is parallel to the ridge beam is more than 80 cm, it will be necessary to make a slope. This situation occurs when pipes from the stove, fireplace, ventilation are combined in one pipe. To protect the joint between the pipe and the roof, it is necessary to make a visor. It will divert water and snow to the sides. It is better to entrust this work to professionals, since in this case the master must have considerable experience.

Finished adapter block

The passage of the chimney through the roof in a bathhouse or other building can be sealed using a special adapter. It is used if the chimney is round and made of ceramic or metal. There are a huge number of ready-made nodes for creating a chimney passage for sale. Forms of such products may be different. On sale you can find nodes of oval, round, square or rectangular configuration.

The choice of design option depends on the material from which the roofing and rafter system are made, as well as the diameter of the chimney, the angle of inclination of the slopes. Also, the height of the attic space affects the choice of a finished node. Take into account the material of the floors in the house.

Manufacturers produce walk-through structures that consist of 2 parts. These are metal rings and flanging. If such products are smelted from ferrous metals, the wall thickness should be from 1 to 3 mm. Rings consist of 2 contours. Each of them is insulated with basalt material. This eliminates the possibility of fire in the presence of a heated pipe.

The metal from which the transition assembly is made is coated with a protective enamel. This avoids the development of corrosion. Enamel withstands high temperatures (up to +600ºС). Sometimes the penetration is made of stainless steel. The cost of such products will be much higher.

The chimney passage assembly through a soft roof or other materials can be universal. It is made from aluminium. The flange has a cone-shaped corrugation made of silicone. Several standard sizes of such products are on sale. This allows you to choose a ready-made adapter for a pipe of the appropriate size. The top of the corrugation can be cut off so that the pipe can pass through its hole. In this case, the flange is treated with a sealant. It is attached to the roof with screws. They are usually supplied as a set.

If the roof is made of embossed materials that do not allow fixing with self-tapping screws, you have to attach the system to the crate. For this, long dowels are used. This, for example, may be required if the crawl is made of reinforced concrete. It should be noted that the type of roofing material to a large extent affects the procedure for arranging the chimney outlet.

sandwich chimney

On what material the roof is covered, the features of the arrangement of the passage of the chimney pipe depend. Most often, the owners of the house choose ondulin, metal tiles, corrugated board, etc. for finishing slopes. It is also often necessary to make a chimney pass through a soft roof.

Sandwich chimneys have gained particular popularity today. They are distinguished by ease of installation, high-quality construction, durability and safety in operation. The outer body of such a pipe is made of a sheet of metal. It has a beautiful sheen. Such pipes are almost always round in shape. Therefore, for the passage through the roof of a sandwich chimney, ready-made passage elements are most often chosen. They are of two types. Most often, elastic transitional structures are purchased. If the owners do not like how a shiny pipe is combined with a similar design, they may prefer a metal transition node.

Elastic adapters are made from a flexible polymer that is resistant to elevated temperatures. The flange (lower element) of the structure is made of a flexible material. Therefore, it can be easily installed both on flat roof slopes and on a surface covered with metal tiles with high waves. The passage through the roof of a sandwich chimney will be the easiest to perform correctly using a similar design. The flange is fixed with self-tapping screws or special studs.

The advantage of elastic adapters for sandwich chimneys and other types of pipes is their low cost. At the same time, installation does not cause difficulties. It will be much more difficult to make a mistake in this case. The kit comes with detailed installation instructions.

The joints during installation are lubricated with a special heat-resistant sealant. They process the place where the pipe comes from, as well as the joint between the flange and the roof. When the sealant dries, you will need to screw the adapter with bolts. To do this, pre-drill holes in the lower flange ring.

Soft roof

The creation of a chimney passage through a roof made of flexible tiles is carried out according to a certain technique. First you need to drill a sufficient hole in the roof. A pipe will come out through it. Often the roof does not have powerful beams to fix the system. In this case, you need to purchase a prefabricated passage. It consists of two parts. This reduces the load on the floor.

Two prefabricated parts are attached with self-tapping screws, first from the inside of the roof. Outside, you need to glue a special rubber material with ordinary silicone to create a seal.

Next, you need to mount a non-combustible insulation. To do this, purchase mineral wool in rolls. With the help of basalt or fiberglass, they fill the space between the prefabricated structure and the chimney pipe. During installation, make sure that the mineral wool does not cover the rubber seal.

Roof cutting is supplied with the prefabricated passage. Its fixation occurs with the help of self-tapping screws. This option is ideal when creating a passage through the roof of the chimney from a sandwich pipe. Roof cutting allows you to protect the system from water penetration. There are many varieties of such structures. They differ in the method of execution, material and angle of inclination.

As a rule, the slope of such structures is from 15 to 55º. The choice depends on the angle of the roof. If the material for its decoration is soft rolled varieties of materials, metal cutting can be used. Also, with this method of installation, structures that have a self-adhesive tape for high-quality adjoining of the system to the roof are quite suitable.

Tiles and ondulin

The passage of the chimney through the roof can be done independently even if the coating is made of tiles. In this case, the chimney is in most cases lined with bricks. In this case, you will need to perform the work with special diligence. In this case, corrugated, as well as self-adhesive sheet lead or aluminum can be used to finish the chimney.

The listed materials are sold in the form of rolls. On the one hand, they are covered with a special adhesive composition. The reverse side of such a sheet is covered with a foil of the listed metals. This design allows you to protect the chimney from mechanical damage, as well as prevent water from leaking after rain or snowfall into the house.

Another popular option for roofing is ondulin. He has a lot of positive qualities. It is also sometimes called euroslate. It does not contain asbestos. Therefore, it is classified as an environmentally friendly material. However, its disadvantage is insufficient heat resistance. The temperature limit to which this material can be exposed is 110°C. Therefore, the creation of a passage through the roof is approached very responsibly. Making it is quite difficult. However, with certain knowledge, even a novice master can cope with this task.

It is also worth saying that ondulin not only does not withstand high temperatures, but can also ignite. Therefore, for your own safety, you need to know how to properly make a passage in a roof with a similar finish. It will be necessary to cut an opening in the roof much wider than the diameter of the pipe. This increases the likelihood of leaks.

To prevent negative consequences, a metal or silicone passage through the roof for the chimney is used. Be sure to mount the roof cutting. Also in the design there is always a metal apron. The cutting angle is chosen in accordance with the position of the roof slopes. The ends of the cutting during installation are inserted under the nearby sheets of ondulin.

Decking

If you want to create a chimney passage through a corrugated roof, most often the owners of the house purchase a sandwich pipe. This is the most reliable, easy-to-install option. The corrugated board is combined with such a design perfectly. To install the chimney, make markings on the roofing.

Next, using a grinder, you will need to cut a hole. It is necessary to retreat from the intended contour a few centimeters deep. The hole in this case will decrease somewhat. This circumstance must be taken into account in the design calculations. At the same time, you need to be very careful. There should be no nicks in the material.

When the hole is created, you need to make small cuts in the corners of the hole. Thanks to this action, the material with which the outer side of the ramp is trimmed can be bent up. Further, creating a chimney passage through the corrugated roofing, it will be necessary to cut holes through the ceilings. The hole should be similar to the mark made earlier.

After that, it will be possible to mount a metal box. It additionally protects the roof from overheating. A sandwich pipe is passed through this box. Further, a layer of mineral wool is inserted into the space between the chimney and the roofing material. You can also pour expanded clay. After that, a silicone seal is put on the pipe. It must be carefully glued to the corrugated board.

These manipulations allow you to create an airtight assembly. Water will not seep through it into the house.

metal tile

The passage of the chimney through the roof of metal is created using a standard external cutting. The pipe in this case is often made of brick. First, above the roof slope, you need to equip the inner apron. It must be mounted even before the roof is sheathed with metal tiles. The inner apron will need to be ditched. This structural element is made of galvanized steel. The sheet may or may not be coated.

To make a chimney pass through a metal roof, you will need to attach a steel profile to the pipe wall. It marks the upper edge of the apron. A grinder makes a strobe along the marking line. It is washed with water to remove construction dust.

Installation of the inner apron begins with its lower part. In the right places, the steel profile is cut. This element must be installed in its intended place. Next, it is cut. The apron is installed in the prepared place. It is firmly pressed to the base. In this case, the upper part must exactly match the previously created strobe.

Further, the system is fixed with self-tapping screws. They are screwed through the bottom of the inside of the apron. They must pass through the wooden elements of the roof structure. In the same way, the side and top parts of the apron are mounted. They must be at least 15 cm in size.

Apron sealing

When creating a chimney passage through the roof, which was covered with metal tiles, it is necessary to seal the inner apron. To do this, the edge that was inserted into the strobe is treated with a heat-resistant sealant.

A tie is wound under the bottom edge of the apron. It is a flat sheet designed to drain water. It is directed to the valley or down to the very eaves. You need to make a side along the edge of the tie. This can be done with pliers.

When the inner apron is installed, you can mount the outer protective screen. It is installed on the same principle as the inner apron. Only its upper edge will not sink into the strobe. It should seal the joint. For this, a special composition is used that is not afraid of high heat.

Having considered the features of arranging the passage of the chimney through the roof, you can create a high-quality system with your own hands. Water will not seep through it after snow or rain. The chimney will perform the tasks assigned to it correctly, it will not quickly become covered with soot inside. The operation of stove heating will be safe and efficient.

Heating devices are a necessary attribute of any residential building, providing a comfortable temperature for life during the cold period, which lasts 9 months in most regions of Russia. However, additional comfort comes with a certain degree of fire risk. Therefore, special attention is paid to the chimney, through which smoke and combustion products are removed from the heat generators and removed to the outside of the room. This article will tell you how to bring the chimney through the roof in compliance with all safety requirements.

As a rule, the work of a stove-maker or an installer of gas equipment does not include chimney installation services; the homeowner must provide the passage of the chimney through the roof on his own. The imaginary simplicity of the task makes home craftsmen refuse the services of professional roofers. However, poor-quality output of the pipe to the roof threatens with serious consequences:

1. Through the leaky passage of the pipe, moisture seeps into the masonry, gradually destroying it.
2. High humidity inside stimulates the spread of molds and fungus. Spores of some types of fungus are dangerous for the human condition, so it is not safe to use an infected tube. In advanced cases, both the chimney and the stove masonry are subject to replacement.
3. The penetration of water into the passage of the chimney pipe through the roof reduces the thermal insulation properties of the insulation by half. Moreover, after the thermal insulation layer has dried, its characteristics will never return to the previous level.
4. Even the truss system suffers from poor-quality removal of the pipe through the roof, since moisture penetrating into it through a leaky passage leads to decay and destruction.
5. Slots near the pipe passage disrupt the normal air circulation inside the attic space, leading to increased energy losses and heating costs.

By the way, not only stove chimneys are brought to the roof, pipes from gas boilers and ventilation outlets are also placed there, for the installation of which they use the same methods.

The choice of the location of the chimney outlet and its height

The first condition for a high-quality outlet of the pipe through the roof is the correct placement of the chimney on the roof. The functioning of the entire heating system depends on this factor, therefore, in order to avoid errors, installation is carried out in accordance with construction and fire safety requirements:

• Chimney pipes are placed in the immediate vicinity of the highest point of the roof, at a distance of 1-1.5 m.
• The recommended height of the chimney relative to the roof ridge to ensure normal stove draft is 0.5-1.5 m.
• The greater the height of the chimney, the greater the traction force in the furnace or gas boiler it provides.
• The lower the chimney is located on the slope, the longer it must be in order for the recommended height of the chimney above the roof to meet the recommendations.
• Parameters such as the height of the chimney, the cross-sectional diameter are selected according to the recommendations of the manufacturer of the thermogenerating device or on the basis of a calculation.
• The chimney consists mainly of vertical sections of pipes, the length of horizontal segments should not exceed 1 m.
• The outlet is placed between the elements of the truss system so as not to violate its integrity.

The main difficulty in passing the pipe through the roof is that during the passage of smoke, the temperature of the walls rises, which poses a risk of ignition of combustible materials of the truss system.

Elastic penetration

Most often, in private construction, they are faced with the installation of metal pipes of circular cross section. To ensure the tightness of the passage, use a special device - an elastic penetration. This product is made of high-strength silicone or rubber, having the shape of a funnel with a wide flange in the form of a square or circle, called an apron. Elastic penetration, due to its properties, takes any shape, adjusting to the angle of inclination of the slope. It withstands extreme high or low temperatures, exposure to harsh chemicals and has a wide palette.

When purchasing an elastic penetration, they are guided by the diameter of the pipe and the color of the roofing material. Universal models, in the form of a stepped pyramid, are suitable for any size, adjustment is carried out by trimming the penetration to the desired level. Installing an elastic apron on the roof is very simple, you need to put it on the chimney passage, put a metal circle with holes for fasteners, process the joint with a fire-resistant sealant and fix it with a screwdriver. For roofs with steep slopes, a special type of plastic penetrations is used with a given flange mounting angle.

Metal spigot

In hardware stores, you can find another type of penetration for round pipes - a metal pipe through. It is used to pass the chimney through a roof that does not have a relief. The prefabricated alloy steel spigots have a standard roof angle, which is matched to the roof slope. To complete the installation, you must:

Cut a suitable hole in the roof. To do this, using a marker, markings are applied to the surface of the roof. Depending on the roofing material, cutting is performed with a grinder or sharp scissors, stepping back 1-2 cm inside the circle.

• Remove the waterproofing and thermal insulation material from the hole made, freeing the passage for the chimney. If necessary, remove the elements of the crate by carefully sawing them off.
• On the underside of the roof, fix a sheet of fire-resistant material with a hole of the required diameter of such an area that there is a margin of 15-20 cm on each side of the chimney.
• Push the pipe module into the hole, dock it with the laid chimney, tightening the junction with a clamp.
• Put the outlet pipe on the pipe, fixing it on the surface of the slope with fire-resistant sealant and self-tapping screws with a rubber cap.
• Attach the pipe with new segments so that the height of the chimney reaches 0.5-1.5 m above the level of the ridge.

Some craftsmen prefer to use a different method - they pre-solder the chimney into the passage pipe, cover it with a thermally insulating material, for example, stone wool, and only then this design is mounted in the passage.

Conclusion of rectangular and square pipes

Made of brick, most often square or rectangular, therefore, other methods are used to bring it to the roof. This task is for an experienced kiln master, and not a home craftsman, because a special masonry technique is used in the process. When the chimney approaches the roof, a hole of the appropriate size is cut out in it with an allowance of 2-5 cm, through which the stove-maker leads out. Although heat-resistant brick perfectly retains heat inside the pipe, asbestos sheets are chipped from the inside of the passage to protect the rafters from fire.

A soft waterproofing tape on a lead or aluminum base is attached to a brick pipe using a metal profile, the lower edge of which is fixed to the roof with a sealant. After that, the unsightly waterproofing is closed with a special decorative apron. It consists of four additional parts and is installed under the roofing material, making the passage neat and well protected.

Output box installation

The roofing device consists of layers of several materials, the refractory qualities of which are expressed in different ways. While most roofing materials are non-flammable and non-combustible, truss systems traditionally made from wood do not. In order to safely lead the chimney through any material, a passage box is mounted:

• First of all, a box is purchased or made from a refractory material, for example, metal or asbestos. The size of the box is selected in accordance with the cross section of the pipe, so that there is at least 15 cm between their walls.
• After making the hole, a box is installed in it, the upper edge is aligned with the level of the roof slope.
• The chimney is led out through the hole in the duct. The edges of the waterproofing film and vapor barrier are glued to the pipe using a fire-resistant sealant and reinforced tape.
• Expanded clay is poured inside the box or stone wool is laid to insulate the chimney. Thermal insulating materials are placed taking into account the fact that they should not impede air circulation.
• Outside, the chimney pipe, depending on the shape and roofing material, is finished with an elastic penetration, a decorative apron or a metal pipe.

A well-made chimney outlet does not spoil the appearance of the roof, does not allow moisture to pass through and is safe from the point of view of fire safety standards. Follow the correct technology for passing tubes through ceilings to protect yourself and your property.

Video instruction