How to safely break through a wall and make a doorway yourself? How to make a chimney pipe pass through a metal roof? Video: running a pipe through a corrugated roof

Crossing the roof with a pipe is one of the extremely vulnerable components of the structure. At the intersection of the roof with a chimney, a hole is required, which, if the rules of arrangement are violated, is capable of passing water. Improper sealing of the space around the pipe can cause a fire, and incorrect fixation risks becoming the cause of destruction. In order for the listed formidable circumstances to bypass lovers of Russian steam, you should know how to correctly install the pipe into the bathhouse through the roof. Compliance with the rules for the device of this very important penetration will save you from a lot of serious troubles and troubles.

Principles of arranging roof passages

The space between the chimney and the wall of the box turned towards it is also filled with basalt wool, and an air gap is left outside between this wall and the insulation to improve insulation. From below, from the side of the bath rooms, the penetration is closed with a box-shaped casing made of galvanized or stainless steel. For the final design, from the side of the attic, a steel sheet is first mounted, then a casing.

The arrangement of the passage through the slope from the side of the bath is carried out using a metal under-roof sheet with an oval hole. It is attached with self-tapping screws to the elements of the truss system. Before installing the sheets, basalt cardboard and cotton wool are laid in the cut-out opening. The free space is filled with non-combustible thermal insulation. A lead roof trim is installed on top. It is adjusted to the surface of the roof by tapping with a mallet.

Video on the arrangement of roof penetrations

Standard execution of pipe cutting:

Passage device through ondulin:

Homemade assembly for the passage of a pipe through corrugated board:

Information about the rules for arranging chimneys is useful and independent craftsmen, and customers of the services of a team of builders. Compliance with technological requirements will save you from many negative consequences. Properly executed passage nodes will provide excellent insulation and extend the life of the bath chimneys and the bath itself.

In buildings with stove heating, such as private house, bath and others, the construction of a chimney and the organization of its output to the outside are required. When arranging the passage of the pipe through the roof, certain norms must be observed in order to ensure safety and maintain the protective properties of the roof.

Chimney passage through the roof

The flue is intended for an output of products of combustion of fuel (coal, gas, firewood, peat) and formation of furnace draft. The method of pipe exit through the roof is determined at the design stage. The main condition for this is to ensure the fire safety of the roof, especially at its junction with the pipe, as well as the protection of the junction from the ingress of atmospheric moisture into it and the accumulation of condensate. The height of the pipe is assigned by the norms of SNiP and depends on the distance at which it is located from the roof ridge:

if the distance from the center of the pipe to the ridge is not more than 1500 mm, then the height of the pipe above the ridge must be at least 500 mm;
with a distance between the center of the chimney and the roof ridge from 1500 to 3000 mm, the height of the pipe coincides with the height of the ridge;
if the distance exceeds 3000 mm, the height of the chimney must not be lower than the line drawn from the ridge at an angle of 10°.

The height of the chimney pipe is determined by the norms of SNiP and depends on the distance to the roof ridge

The smaller the distance from the pipe to the ridge, the greater the height of the pipe should be.

Chimney passage assembly

This element can be located in different places roofs. One of the options preferred by roofers is the passage of the chimney directly through the ridge. This method is distinguished by the easiest installation and avoids the accumulation of snow above the pipe wall. The disadvantage of this arrangement is a decrease in the strength of the truss system, in which the ridge beam is either absent or sawn and fixed with two supports on the sides of the pipe outlet, which is not always possible to implement.

The output of the chimney through the ridge is different simple installation, but may compromise the strength of the truss system

Most often, the pipe is located near the ridge. So the chimney is least of all exposed to the action of cold, and therefore to the accumulation of condensate inside. The disadvantage of this arrangement will be that the closer the pipe is to the ridge, the greater its height, which means that the construction will require additional funds.

The outlet of the chimney at a short distance from the ridge is the most common and convenient option

It is not recommended to run the chimney through the valley, as snow can accumulate in these places, which will lead to a violation of the waterproofing and the occurrence of leaks. In addition, it is difficult to organize a chimney box at the junction of the slopes. Do not place the chimney in the lower part of the slope - it can be damaged by snow falling from the roof.

The material from which the pipe is made also affects the organization of its output system. Typically, pipes are made of metal, asbestos cement or refractory bricks, but sometimes ceramic ones are also found. The methods of their waterproofing will be different. In addition, each type of fuel has a certain combustion temperature, and this must also be taken into account when constructing a chimney.

Depending on the shape of the chimney, the outlet can be square, round, oval or rectangular. To protect the roof covering from the action of elevated temperatures and protect it from fire, a box is arranged around the chimney. It happens like this:

Additional rafters are installed to the right and left of the pipe.
Horizontal beams are laid at the bottom and top at the same distance and of a similar section. The distance between the box beams and the pipe walls is determined by SNiP and is 140–250 mm.
Inside the box is filled with non-combustible insulating material, for example, stone or basalt wool. Fiberglass is not recommended because of its easy flammability.

The space of the box should not be filled with fiberglass - it can ignite under the influence of high temperatures

It must be taken into account that the construction of the box can disrupt ventilation. roof space, so you can install additional ventilation systems.

Video: installation features of the chimney passage assembly

Features of the output of the chimney through different types of roofs

When arranging the passage of the chimney, attention must be paid to protection against atmospheric precipitation, which will flow down the chimney and roof. To waterproof the connection between the pipe and the roof, a protective apron is arranged around the chimney. This technology is similar for roofs with different coatings.

Metal roofing

Metal tile is a popular roofing material, which is thin steel, aluminum or copper sheets coated with a protective layer.

Square or rectangular pipe outlet

If the pipe is made of brick and has a square or rectangular cross section, the materials included in the coated kit can be used to pass it through the metal roof. Since brick chimneys can have non-standard sizes, some of the coating sheets are removed or a larger hole is cut out before being removed.

For waterproofing the joint, special elastic tapes are used with an adhesive layer applied to one of the sides. One edge of the tape is glued to the base of the pipe, the other - to the roofing sheathing. From above, the edge is fixed with a metal bar, which is attached with heat-resistant dowels to the pipe wall. All joints are sealed with sealant.

To reduce the likelihood of water leaking along the chimney wall, you can make a groove under the bar - a strobe

An apron for a square or rectangular pipe can be made with your own hands. It is made from a smooth metal sheet of the same color as the main coating. The upper edge of the apron is tucked under a row of metal tiles located above so that water flowing from above does not fall under it. If the pipe is located close to the ridge, the edge of the apron can be tucked under the ridge or folded over to the other side. To protect the through hole from precipitation, a tie is installed under the apron.

The outlet of the chimney is best organized before laying the metal tile coating.

Conducting a round pipe

When a round chimney or a sandwich pipe is led through a metal roof, roof penetrations are most often used, connected to a cap through which the pipe is passed. A neat round hole is cut in the coating to fit the chimney, a universal glass or master flush is put on the pipe, the joints are sealed.

To seal the junction of a round pipe and a roof, special penetrations are used.

Video: sealing the passage of a brick pipe through a metal roof

Roofing from corrugated board

Profiled sheet is one of the most common roofing materials. But a leak can also occur in it if the chimney outlet is not properly arranged. The chimney with this type of coating is best placed vertically. A hole in the roof is cut with a grinder, while it is necessary to ensure that the cut edge of the corrugated board is without notches.

Conducting a rectangular pipe

If it is necessary to organize a passage for a rectangular or square pipe, the apron can be made from galvanized sheet.

4 strips are cut out of metal, which will be placed in front, behind and on the sides of the pipe.
A sheet of galvanized steel is laid from the lower edge of the chimney to the eaves. This element is called a tie and is subsequently covered with roofing material.
The planks are tightly attached to the pipe, their lower part is fixed to the crate, and the upper part is put on the chimney.
A groove is made in the wall of the pipe, into which the bent edge of the bar is inserted. First, the lower bar is installed, then both side and upper. Sheets are folded one under the other.
Before laying the corrugated board, the passage of the chimney must be waterproofed. You can use normal waterproofing film, which is cut with an “envelope” and glued to the pipe, but it is better to use a self-adhesive waterproofing tape.

The upper junction bar to the pipe is filled with sealant

Round pipe outlet

When a round pipe is led out through a corrugated board coating, roll bitumen waterproofing or foil bitumen tape is used. A roof penetration is put on the chimney, which is glued to the crate and sealed with a heat-resistant sealant. If the passage is made of rubber, it can melt from the heating of the pipe, so a clamp with a heat-resistant gasket must be fixed under it.

If you use a roof passage made of heat-resistant rubber, you can avoid melting it.

Video: running a pipe through a corrugated roof

Ondulin roofing

Ondulin is also called "Euroslate". The peculiarity of such a coating is that it is combustible, and does not have great strength. Therefore, for the passage of the chimney, it will be necessary to make a hole in the roof of a large size and fill it with fire-resistant material that will prevent moisture from entering.

To waterproof the joint between the chimney and the roof, a metal roof cutout with an apron is installed, the edges of which are brought under the ondulin sheets or the Onduflash elastic tape is used. Such a coating requires an additional ventilation device.

In the ondulin roof, you will need to make a hole for the outlet of a larger diameter pipe and fill it with fire-resistant material

Video: sealing the chimney on the roof of ondulin

How to bring a pipe through a soft roof

Soft roof is also a combustible material, so a gap of 13–25 mm must be left between the coating and the chimney. Pipe waterproofing is carried out in the same way as with other coatings, only instead of an elastic tape, a valley carpet is used or the coating itself is placed on the pipe - shingles or only.

When waterproofing the junction of a pipe and a soft roof, the coating itself can be used instead of an elastic tape

Stages of work on the removal of the chimney through the roof

To withdraw chimney through the finished roof, the following steps are necessary:

The place of passage in the roof between the rafters and the transverse beam is selected.
A box is mounted: rafters are constructed from the bars, parallel to the rafter legs, and beams. The cross section of the beams for the box is taken equal to the cross section of the rafter beams. The width of the sides of the box will be 0.5 m greater than the diameter of the pipe.
A hole is cut in the roof slope. To do this, in the four corners of the box from the inside, at the junction of the rafters and beams, they are drilled through holes. After that, the layers of the roofing cake are cut along the inner perimeter of the box and diagonally.
After installing the flange, the required shape can be given with a hammer

Video: do-it-yourself chimney box

The output of the chimney pipe through the roof is a responsible matter, in which strict adherence to the installation technology is mandatory so that there is no danger of leakage and destruction of the pipe. Carrying out work on the removal of the pipe includes many nuances, taking into account the roofing, material and shape of the pipe, waterproofing methods. Therefore, you should study all the stages of work in advance and consult with a specialist.

The chimney can be made of masonry, ordinary steel or insulated sandwich pipe. In each case, an individual approach is needed, because in fact there is a different intensity of heating, and a method of fastening the cutting of the ceiling and roof.

Brick chimneys are the most practical and easy to arrange. The high heat capacity of the masonry does not allow the temperature on the outer surface to rise to fire hazardous values. In addition, parts of cuttings and protective covers can be easily and reliably fixed to a brick chimney. Well, the fastening of the waterproofing apron of the roof is completely carried out according to the simplest scheme without the use of "branded" shaped parts.
brick chimney
Insulated composite pipes are used just as widely, but in some aspects they are inferior to brick ones. They do not look so natural and almost no additional load can withstand. Even more: chimneys of complex shape and long length require additional fixing, which is not good for aesthetics. The heat transfer from such pipes is greater than from brick ones, despite the presence of a heater, they are able to heat the surrounding space quite strongly and require additional lining.

Chimney sandwich pipe
Finally, uninsulated pipes are often used - asbestos-cement, or even steel. The passage of such a chimney through the ceiling and roof is carried out according to the most complex scheme. The lining should not only insulate heat, it must be heat resistant. In addition to incombustibility, it is required to maintain integrity and mechanical strength during cyclic heating/cooling.

Chimney from asbestos pipe
Making a hole in the ceiling
In addition to the difficulties associated with different types chimneys, there is a certain amount of uncertainty due to the variety of ceilings. The easiest way with concrete monolithic ceilings: an opening is cut out in them with an angle grinder with a disk for cutting concrete, adhering to the minimum allowable indents from the chimney pipe. Since the floor material is non-combustible, thermal insulation will require a minimum.
Marking the opening for the chimney
It is more difficult with structural strength, especially when passing through prefabricated floors or if the width of the chimney is 2–3 times the spacing of the slab reinforcement. It is advisable to provide for the need for an opening at the stage of installation of the ceiling, by constructing a reinforced steel hoop or by filling the end of the opening with the inclusion of additional reinforcement.
Opening under the chimney in reinforced concrete floor
The opening in the frame floor is more difficult to arrange. First you need to determine the location of the supporting beams. Approximately in the center of the opening, you need to make a hole with a wide crown, to clarify the removal of the beams and their direction by touch. Outside, we apply markings within the free space, then cut out a section of the floor and the draft ceiling with a jigsaw or hand circular. Most likely, the full profile will not be cut out immediately by the beams, but now they will become available for further manipulations.
You can cut out fragments of the beams with an ordinary hand saw and then complete the trimming of parts of the floor and ceiling. To restore the strength of the supporting system of the ceiling, it is enough to add a pair of crossbars, which are equivalent in power to the total cross section of the removed parts. The allowance for the thickness of the inserts must be made in advance. In the cavity at the open ends, it is necessary to lay a heater and sheathe the opening with a thin board or sheet materials. For greater reliability, you can repeat the sheathing with materials with low thermal conductivity - heat-resistant GKL or MGL.
Pipe passage through wooden floor
We will describe the filling of the passage opening with a heat insulator and the restoration of the skin a little later. Now it is only worth noting that, due to thermal linear expansion, the chimney and its lining must be located independently of each other with a small gap, otherwise the formation of cracks can spread far beyond the junction area. The internal surfaces of openings in ceilings made of conditionally combustible materials should be treated with flame retardants, as well as the area of \u200b\u200bthe ceiling and floor 50–60 cm from the passage.

Passage through the roof
When passing both through the ceiling and through the roof, the main rule applies - do not join the pipes in the plane of their section. In addition, it is better to join segments under the roof than above it, even if this requires the purchase of additional pipe moldings.
Chimney passage through the roof
The opening in the roof is made from the inside. If there is sheathing and insulation, they are dismantled and, with the help of a plumb line, the section of the chimney is transferred, marking the ellipse on the crate. Along its contour, you need to drill several holes in places from which it is convenient to start cutting with a jigsaw, while sawing through both the roofing and the crate under it.
Chimney passage through the roof
When the hole is made, it is necessary to disassemble the coating 30–40 cm from it. Next, you need to expand the opening in the crate by the thickness of the thermal insulation. The simplest way equip a cavity for filling with insulation - tie the rafter legs with jumpers, forming a rectangular pocket.

Thermal insulation of the chimney and the device of the passage unit
Chimneys from brickwork thermal insulation as such is not required. Instead, fluffing is performed - the expansion of the channel at the place of its passage through the overlap. Laying out the fluff is easy: it starts 3-4 rows below the ceiling. Each subsequent row of expansion is laid out, starting with the outer bricks, which are released behind the chimney profile for half their width. The cavity formed inside is paved with bricks placed on edge.
Fluffing a brick chimney
It is worth warning that when laying a brick chimney, you need to give time for shrinkage, collecting no more than 10–12 rows in one day. This is especially true of channels called mounted, that is, laid out on top of the stove or fireplace, and not next to them. If the dimensions of the opening were chosen correctly, after laying the fluff, there should be a gap of about 15–20 mm between it and the skin.
Fluffing a brick chimney
In a completely different way, the insulation of the passage of composite and simple pipes. Basalt wool is used as a filler for the opening, this is true for the passage both through the roof and through the ceiling. The thickness of the thermal barrier is always chosen individually, on average it is 200–250 mm for composite pipes and about 400 mm for non-insulated pipes.
Chimney insulation in the ceiling
For the convenience of laying the filler, the opening is hemmed from below with sheet heat-resistant material - magnesite or asbestos-cement slab, sheet steel or roofing sheet. A hole should first be made in the overlay, with a cross section of 10–15 mm larger than the channel on each side.
The passage of the chimney through the ceiling
A similar operation is performed in the roof passage. With the only exception that the surface is inclined and the hole for the channel must be oval. If the chimney is made with an uninsulated pipe, the space of the opening should be divided by a casing sleeve. Inside it, the space is filled with a dense heat-resistant material, for example, a soaked asbestos briquette with the addition of cement and a bonding fiber.

Varieties of roof cuttings, restoration of waterproofing
If it is quite simple to restore the floor of the ceiling, then the lining of the passage through the roof should completely exclude water leakage. To isolate brick chimneys of rectangular cross section, they are cut along the ring with a depth of about 30–50 mm. From thin sheet metal, you need to bend Z-shaped profiles in the amount of four pieces. The upper shelf they are inserted into the groove, the lower one is adjacent to the roofing. In addition to the external apron, an internal one is also arranged, which does not cut into the body of the chimney and mates with the roofing waterproofing.

Waterproofing a brick chimney
The inner apron is made with an L-shaped (ridge) profile with a shelf width of 150 mm or more. Installation starts with highest point: the ridge is nailed to the chimney with dowels, waterproofing is applied on top and fixed with glue. On the sides, you need to leave releases of about 200 mm, which are cut along the fold line and wrapped on the sides of the chimney channel.
Before the final fixing of the petals, the side parts of the apron are mounted, and before they are fixed, the lower segment of the casing is mounted. It is important to properly fill the waterproofing: along the fold line of the lower part of the apron, it is released over the metal ridge. Next, the roofing is restored and the upper lining is mounted - the dressing scheme with the coating is the same as in the previous stage. It is recommended to lubricate the junction of both linings with mastic or plastic sealant, completely eliminating the penetration of moisture.

Chimney passage through the roof
If a brick chimney it is arranged strictly vertically, in the case of pipes it is recommended to shift the place of passage as high as possible to the roof ridge. In this case, it is enough to put a wide metal plate under the ridge, and then isolate the connection to the pipe with an elastic cuff. Otherwise, you can’t do without purchasing a special roof cutting kit, but in this way the likelihood of a leak will be guaranteed to be eliminated. For every type roofing there is a set of grooves that repeats the shape of the surface and is sealed with a pipe either with a sealant or a heat-shrinkable neck.

The chimney is an important part of the roof structure, through which the gases formed as a result of fuel combustion leave the building. In developing a plan for the construction of a private house, the arrangement of a chimney in a metal tile on the roof becomes a necessary component. The passage of a pipe through a metal tile affects fire safety coatings, so it is better to purchase all components in specialized stores. The roof should be protected from possible ignition of the wooden elements of the truss system and the crate.

The design of a chimney for metal tiles, in accordance with state standards, is carried out before construction begins. Sometimes there are unforeseen situations when the passage of the pipe through the roof is brought to finished house. This happens in cases where the old heating system is being repaired or a new heating system is being installed, the roof is being reinstalled. The output of the chimney through the metal tile can be done on its own, in difficult cases, the chimney masters are invited.

Before you bring the pipe through the roof of the metal, experts determine the location of the future chimney. When searching for a pipe passage on the roof, the following established rules are followed:

The chimney assembly in a metal tile structure must be completely connected to the roof deck. Sealing the pipe is a prerequisite for a correct and successful installation.
On the surface of the area selected on the roof of a metal tile for the exit of the chimney pipe, snow and other precipitation should not accumulate in significant quantities. Additional water pressure on the roof can compromise the integrity of the deck. In addition, excess moisture can cause leakage into the living compartments of the house.
A chimney through a metal roof is not installed next to the attic windows. In strong gusts of wind, it can be difficult to avoid a backcast carbon monoxide and smoke inside the building.

All these requirements, as practice shows, are met by a section on a metal tile roof, located near or on the very ridge of the roof. A warm zone, free from the accumulation of condensate, is used to install the chimney chimney. Installing the longest hood, in turn, reduces the negative impact of external atmospheric factors.

If the roof of the building is flat or the crest of the ridge rises to a distance of less than one and a half meters, the brick pipe exceeds the level in height by 50 cm. The ridge, reaching up to three meters, requires installation at the same level with it. With a significant distance to the ridge exceeding the three-meter mark, specialists draw a conditional line to the horizon at an angle of 10 degrees, determining the lifting point for pipe installation. For the construction of the hood, lumber, brick and insulation, waterproofing films are needed.

The mouth of the chimney is covered with a special umbrella made of roofing material to prevent moisture from precipitation. The chimney connected directly to the boiler room is not covered, as this may impede the exhaust of gases.

The cut for access to the roof in the roof pie can be oval and round, as well as rectangular and square.

Square roof outlet

Let's figure out how to make an exit for a chimney that has a square shape. After the pipe is brought to the roof, it is necessary to complete the structure. The main seal, which ensures adhesion to the metal tile coating, has the form of a special apron mounted on the roof slope using metal corners. The installation of this part starts from the bottom wall exhaust system, the planks are fixed with an overlap of 10-15 cm, filling the elements with a sealing compound.

A metal plane is laid from below, along which water flows either into the valley, or to the very end eaves plank. A metal tie is made with folds along the edges.

The metal tile is mounted on top of the inner apron, then proceed to the construction decorative finishes called the outer apron, the part consists of adjoining slats. Tightness is provided by an insulating film with self-expansion. In order to avoid cracking, experts wrap the brick with a sheet of iron coated with a polymer composition.

Arrangement of a round exit

The main thing in mounting a pipe with a circular cross section is the use of an additional element - a penetration for the roof. It is a sheet of metal on which a rubber or silicone cap is fixed.

Application modern technologies made it possible to obtain a universal part capable of reliably serving in extraordinary conditions. temperature conditions. Separate types materials withstand temperatures up to - 70 and + 275 degrees Celsius.

The round pipe passes through the cap on the penetration, which is pulled, choosing the desired part, with the ring hole 20% narrower than the section of the chimney pipe. Then the apron is fixed on the roof structure.

Professional roofers usually do not make rigid fixings, since the pipe can expand and contract due to temperature changes. An elastic collar equipped with an insulating gasket is placed at the junction of the pipe and the apron. In this way, the connection maintains the tightness of the roof, and the chimney and the roof are protected from damage.

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 know 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 is made and rafter system, 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 one is insulated 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. Comes with detailed instructions by installation.

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, use a metal or silicone passage through the roof for the chimney. 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. Top part at the same time, it 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. Exploitation furnace heating will be safe and effective.