We study the system of draining rainwater from the roof. An overview of galvanized and plastic drains How to assemble a water drain from a roof

Properly chosen and well-chosen installed drain not only looks great, but also effectively removes water from the house, thereby extending its life

Looking to install a drainage system but don't know where to start? It doesn't matter, as I will talk about everything from how to choose a drainage system and ending with how to protect it from blockages and freezing. In the end, you will be able to decide which system is right for you, how many gutters and how many drain pipes your home needs, how to install it all, and how to operate the drain.

What are the structural elements of drainage systems made of?

Copper gutters belong to the elite category, they are expensive, but they also serve for over half a century without the need for repair.

Steel products for corrosion protection are painted or a layer of polymer coating is applied on top of them.

On average, the service life of plastic downpipes is made 15-20 years without the need for repairs.

Among the advantages of plastic gutters, I note low weight, absolute resistance to corrosion and long-term preservation of the original appearance due to through painting.

What does it consist of drainage system

Please note that depending on the type of drains, the plugs can be universal or separately left and right.

Please note that depending on the type of drains, the number of external and internal corner elements can be calculated separately.

By comparing the listed parameters, it is possible to calculate what dimensions of the components of the drainage system are needed for a particular roof.

Table of the ratio of the roof area and the size of the drain

The exact ratio of the dimensions of the roof slope and the dimensions of the gutters can be found in the proposed table. The pattern is obvious - the larger the area of \u200b\u200bthe slope, the larger the diameter should be at the drain and gutter.

Having decided on the diameter of the water intake and drain, you need to measure the length of the eaves of inclined slopes and calculate how much gutter is needed. Then the Catholicism of funnels is calculated at the rate of 1 pc. 10 meters of water intake. The last step is to calculate the length of the pipe with a diameter suitable for a funnel for organizing vertical flow.

How to install a drainage system

If we put long brackets on the cornice board, we make a sweat, into which we sink the holder's foot. We fasten short brackets directly to the frontal board.

We stretch the cord between the installed holders and fasten the intermediate brackets along the cord. The installation step of the holders is 60-90 cm, depending on the type of gutter.

We cut a hole with a hacksaw for metal or a special nozzle for a drill. We bend the edges of the hole outward with special tongs or pliers to make a drain.

We dress the funnel by hooking it to the outer edge of the gutter. On the back side, we bend the edge of the funnel.

We put the prepared plug on the end of the gutter and forcefully push it with our own hands until it stops. In some cases, the plug is additionally fixed with a self-tapping screw along the edge.

The connecting elements are put on from the back of the gutter and are snapped in front with a cap lock.

We leave a gap of 1 mm between the gutters in case of thermal expansion.

I draw your attention to the fact that the downpipe is cut only with a hand saw, but not with a grinder. If you cut with a grinder, the metal on the cut and near the cut begins to rust.

How to ensure long-term operation of the drain

During prolonged operation, in the warm season, the drain becomes clogged with foliage and debris, and in the cold season wastewater freeze

Is the drain clogged with leaves and debris, or is it completely frozen in the winter? In both cases, the drainage system does not cope with its duties. Because of this, the contents of the gutter will accumulate, and therefore the load on the structure will gradually increase.

There is a simplified option - installing nets directly into the cavity of the funnel, but this solution does not prevent clogging of the gutter.

For greater flow intensity, the heating cable is installed not only along the gutter, but also in the drain cavity.

Summing up

Now you know how the water intake and drain system is installed, which means you can ensure the normal removal of rainwater from the roof of your house. If you have any questions about the choice and installation, write about it in the comments to the article.

Roof inlets and drains: everything you need to know about the gutter system
How to make plums for the roof? Read about the features of the device in the article

The service life of any roof depends on the most various factors– the quality of the materials used, the approach to calculations, the technology of installation and external influences. One of these factors is the drainage of water from the roof, with improper arrangement of which the structure is regularly exposed to moisture.

A well-designed and properly assembled roof drainage system is important element roof structure, and it needs a lot of attention. This article will discuss how to properly equip the drain of water from the roof.

Device and types of drainage systems

Structurally, any drainage system consists of a pipe, gutters and catchment funnels. Getting into these elements, the water from the roof surface is sent to the storm drain, where its impact will not harm the building in any way.

There are three circuit diagrams drainage system:

Unorganized drainage of rainwater from the roof. Such a design, which is also called spontaneous, in accordance with its name, provides an independent drain of water from the roof. Distinctive feature natural drainage is simplicity - nothing needs to be installed to ensure a drain. The problem is that the flowing water washes away the building, damages the wall finishes and negatively affects the waterproofing layer.
Organized external water flow from the roof. This is a classic design, consisting of a drain pipe, a gutter and several funnels that are connected to a storm sewer. As a result of the installation of an organized external drain, water is collected from all slopes and drained from the roof surface. External drain is quite simple in arrangement and maintenance.
Organized internal rain runoff from the roof. The main difference between an internal drain and an external drain is the installation of structural elements in the building itself in such a way that they are not visible. As a rule, such a drain is equipped in the case of flat roofs. Installation of an internal drain is complicated, and it will be very difficult to maintain it, especially if mistakes were made during the arrangement.

Materials for the manufacture of systems for draining water from the roof

For the arrangement of the drainage system, various materials are used, the choice of which directly affects the cost of the structure and its durability. In order for components to perform their duties well, they need sufficient moisture resistance, resistance to temperature extremes and a long service life.

In most cases, draining water from the roof is equipped with the following materials:

Galvanized steel. Steel is used to drain water most often. To a large extent, the high popularity is due to the fact that you can select not only finished items designs, but also to make them yourself using sheet metal. Galvanized steel meets all requirements: it perfectly resists corrosion, calmly withstands the effects of external factors and can easily last more than 15 years. The only drawback of steel products is their heavy weight, which complicates installation and creates heavy loads on the roof frame.
Plastic. Polymer elements are very well suited for arranging a drainage system. With most of the benefits steel parts, plastic has a lower cost, much less weight and a wide range of colors, which allows you to choose the right color that matches the roof. Installing a plastic drain for the roof is very simple - installation will not cause problems, and all the necessary elements are included. The biggest drawback of polymer products is their poor resistance to significant temperature changes.
Copper. Copper components for the drain are distinguished primarily by their high cost, so they are used infrequently. However, the high cost is fully justified - copper is completely resistant to moisture and can work without the slightest complaint for more than a hundred years. The main disadvantage of copper parts is the heavy weight inherent in all metal products, so the truss frame and crate will have to be strengthened.

When choosing materials for arranging a drainage system, you need to build on roofing. Seam roofing, as well as roofs made of metal tiles and profiled sheets, are best equipped with a steel drain with a plastic coating. In the case of soft roll coatings, relevant will be plastic pipes for draining water from the roof, and for the copper coating, copper components for the drain are suitable.

Before choosing drain pipes for the roof, you need to calculate their dimensions, starting from climatic conditions and roof parameters. As practice shows, for small buildings a pipe with a diameter of 50-70 mm and a gutter with a diameter of 70-120 mm are quite suitable.

Pipe and drain installation

In order for the drainage of water from the roof to be feasible, two factors must be observed:

The presence of a slope to the catchment funnels,
Tightness.

If these factors are present, then correct installation all components of the catchment system will work properly.

During installation, the following rules must be observed and followed:

If the drain is heavy, then it is necessary to strengthen the frame at the attachment points of the drain elements. Plastic drains can be attached to the eaves, but metal products are attached to the rafters.
In the gap between the gutter and the rafters, a layer of waterproofing must be laid. The material is selected individually: both polyethylene film and various bituminous mastics can act as waterproofing.
Drainage elements are installed around the entire perimeter of the roof. The drain gutter is attached with a slight slope towards the catchment funnels.
The gutter itself is fastened using special brackets. The gutter should be under the roof overhang with one half, and the other half should go outside. This setup will provide efficient collection liquids and prevent the destruction of the structure due to collapsed snow masses.
Vertical risers of a drain fasten on corners of the building. A storm drain is supplied to these points (if it is not available, then containers are installed under the drains or a sand and gravel cushion is equipped). There must be a distance of no more than 50 cm between the edge of the downpipe and the ground.
Mounting brackets are installed in increments of about 50-60 cm. With a large weight of the structure, the step between the mounts should be reduced even more.

In order for the drainage system to function properly, it must be monitored and regularly serviced. If the installation of drains on the roof has been done correctly, then it will have to be cleaned only once a season. During the maintenance process, you need to make sure that there are no leaks, and if they are found, take corrective measures.

Conclusion

Drainage of water from the roof is carried out through a gutter system. Competent selection of materials and high-quality installation will create reliable system able to carry out all its tasks effectively.

How to drain water from the roof - rules for installing gutters, pipes, trays
Drainage from the roof: drain pipes, drain chute, installation of a rainwater drainage system

How to fix plums on the roof

Rain is not always good. For example, during precipitation, water flowing from the roof of buildings can greatly harm them. Falling streams and even drops eventually knock out potholes in the blind area. Water soaked into the ground near the house can flood the foundation or basement. To avoid all these troubles, moisture must be removed, for this purpose plums from roofs are used. They can be performed in various variations, but serve one purpose - to protect the building from destruction. In this article we will talk about how to install plums on the roof on your own.

What elements are included in the drain system

Before you install a drain on the roof, you should find out what elements it consists of. The drainage system includes:

Gutters. This, one might say, is the main element of the entire system. Water enters the gutter directly from the roof, then it flows to the drain. The drain itself is made in the form of a funnel, which is also part of the system. The gutters can be made from various materials and have different shapes.
Gutter connectors. Roof length may vary. The gutters themselves, if they are factory-made, have a certain length. As a rule, you can find products up to 2.5 meters. To create a system, special devices are used - connectors. At the corners, other designs are used - corner gutters.
Brackets and other fastening devices. Serve for fixing gutters and pipes.
Drain pipe. It is into it that water from the gutters enters. The pipe can be both straight and be made in the form of a knee.

In addition to these basic elements, others can be used. For example, mesh on gutters. It prevents large debris from entering the drain and prevents blockages from forming.

In regions with cold winters, it is worth considering anti-icing systems. They may include heating cables, temperature sensors and other devices.

Gutter types and material used

On sale you can find gutters and pipes of various diameters. So, the first ones are produced in the range from 90 to 150 mm. Pipes can be purchased with a diameter of 75 to 120 mm. The choice of dimensions will depend on the dimensions of the roof. If the slope area is less than 70 m2, then you can purchase gutters and pipes of the smallest diameter.

In addition to the sizes and shapes themselves (square, round and others), the elements of the drain differ in the material used. Mostly metal and plastic.

PVC drain elements have recently become the most common. Thanks to a special coating (acrylic or titanium dioxide), such products are not afraid of temperature changes, moisture and sunlight. The service life of gutters and pipes made of plastic is about 50 years. Another plus is the low cost.

There are several types of metal gutters and pipes for drains. Let's list the main ones. Namely:

Galvanized steel. This material has often been used in the past. But recently, galvanized steel has begun to be replaced by an analogue with a pural coating. This is due to the long service life of the latter. Galvanized iron itself quickly fails under the influence of acid rain. But such material still remains in demand due to its cheapness.
Aluminum. Gutters and pipes made of this metal are light and quite durable. Such products last much longer than galvanized steel, but are also more expensive.
Copper. Such products are considered the most durable. In addition, they give the roof a sophisticated look. But copper is a very expensive metal, so such gutters are not available to everyone. When installing copper gutters and pipes, it is important to consider one feature. If the roof is made of any metal or there are other metal elements, then such products cannot be installed. The fact is that water, flowing down on another metal and falling on copper, will lead to corrosion of the latter.
Titanium zinc. This is the most expensive option for elements of plumbing systems. Such gutters can last a century and a half or more.

Roof drain installation

All work can be done in any season, but it is best to do it in the warm season. In summer, everything can be done much faster and better.

Before you make a drain on the roof, it is worth doing the calculations necessary materials. Decide where the drain pipes will be located, how many gutters, brackets, connectors and other elements are needed. It is best to make a preliminary plan and drawing.
Then start attaching the brackets. It is important to correctly calculate the distance. The fact is that the gutters should not be located close to the wall. If the distance between them is less than 6–8 cm, then the wall may get wet not even from water, but from condensate.
Also, when mounting the brackets, it is necessary to maintain the slope of the gutters. It should go to the drain pipe and be 5-20 mm per meter. Therefore, the brackets are not attached in a straight line, but with an offset.
Before attaching, it is worth making a markup. To do this, you can do some calculations. For example, if the length of the slope is 8 m, and we will make the slope 10 mm per meter, then the offset between the first and last bracket should be 80 mm.
If the length of the roof is significant, then it is necessary to make two drain pipes, they will be located at the edges. In this case, the slope will start in the middle and go in different directions.
The first and last bracket is attached first. Then a thread is pulled between them, and the remaining brackets are mounted using self-tapping screws. Between the brackets it is necessary to maintain a step of 40-70 cm, depending on the weight of the gutters. Do not forget that the gutters will be attached to each other, which means that there should not be a bracket in this place.
Then the gutters are installed. The method of their installation depends on the model. End caps are installed. The last step will be the installation of pipes. Its neck should be directly under the drain of the gutter. Pipes are attached to the wall on special holders or clamps.
A drain elbow is installed at the end of the pipes. Through it, water from the roof will be diverted away from the walls and foundation. If a drainage system is provided on the site, then the knee should be directed to the water intake.

Drainpipe assembly

How to fix plums on the roof
Table of contents: 1 What elements the drain system includes 2 Types of gutters and material used 3 Installing the roof drain 4 Photo 5 Video Rain is not always good. For example, in…

Types of drain system designs

Roof drainage systems with a modern design allow you to protect not only your home, but also its foundation from excessive moisture. The most popular are drain systems made of PVC. They are resistant to corrosion and mechanical damage, do not lose their properties under the influence of precipitation. In addition, plastic structures are lightweight with sufficiently high strength; installation of a drain from roofs of this type is quite easy. Here you will find some tips on how to properly drain your roof.

Roof drainage systems help protect the walls and foundation of the house from excessive moisture.

A roof gutter system consists of three components: a gutter, a pipe and a fitting. According to the type of section, drains are square, round and trapezoidal. Installation of the system depends on the design features of the roof. For example, for flat or hipped roof the drain system should be installed around the perimeter of the roof. Read the installation of the drain should be with the installation of a special plug that forms the correct direction of the water flow. Water entering the water intake will then pass into the drain system. The details of the gutter are interconnected using couplings, and the installation of the bend must be done using adapters installed at the desired degree.

The pipe is connected to the funnel by means of an elbow. The use of special tees will allow you to make the distribution of water flows correctly, ensuring optimal load on the drain systems. Rainfall from the drain will drain through the drain. Installation of a drain happens with use of collars and brackets. Additional parts that are used when installing a drain system are storm receivers, nets and baskets to protect against clogging of the drain, drippers that prevent water from accumulating under the roof of the house.

We design a drainage system

Choosing drainage systems, first of all, you need to choose the right size and shape of pipes.

If the drain is intended for a small building and will experience a small load, a gutter up to 11 cm in size and pipes with a diameter of 7.5 mm are ideal for it. For buildings with a large roof area, choose larger parts - a gutter with a diameter of up to 13 cm and pipes with a diameter of up to 10 cm. For the largest buildings with a maximum roof area, gutters with a diameter of 20 cm and pipes with a diameter of 15 cm are used. from the length of the gutter, its length should not exceed 8 m. If the length of the gutter is more than 8 m, installation of two downpipes is required.

An important point in installing a drainage system is the installation of an anti-icing system, which includes cables, temperature and humidity sensors. New technologies allow the use of robotic devices to clean the drain system. They provide safe and efficient cleaning of gutters. The intelligent system of such an apparatus evaluates the degree of contamination and calculates the intensity of cleaning. If all these requirements are not met and the installation of pipes and gutters does not match the load, precipitation will pour out, destroying the facade and foundation of the house.

How to make a do-it-yourself drain system

Types of fastening of drains.

In order to install the drainage system, you will need the following materials and tools:

gutters and pipes,
water funnels,
connectors,
couplings and brackets,
sealants and adhesives
rubber seals,
gutter plug,
grinder or hacksaw.

Gutter systems must be done during the construction of the building, this will save you time and money. Installation of the drain system is carried out at any time of the year, but it is best to carry it out in warm weather, in dry weather. This will allow you to make a drain quickly and efficiently.

If you decide to install the drain yourself, you should pay attention to the following nuances. Attach the gutter to the wall and roof at an angle with respect to the sewer pipe. This will ensure unhindered and proper flow of water. Read the instructions that came with the purchased drain. It should contain a clear scheme for installing a drainage system. In some cases, it may be necessary to solder several elements to each other. Take care of availability necessary tool in advance. Ensure proper fastening and sealing of joints to avoid leaks.

Installation diagram of the gutter brackets. In places where the gutters are connected to each other, as well as to the corners of the gutter, they are inserted into each other so that the overlap is 25-30 mm.

The installation of the drain system begins with the calculation of the necessary details, such as pipes, funnels, brackets, connecting elements, gutters and plugs. After that, proceed to the collection of drainage. The first step is to mount the bracket. To do this, it is necessary to fix the holders at a distance of 50-60 cm from each other. The bracket is mounted obliquely at the top and bottom points. To install the remaining holders, a cord is pulled from one point to another.

The second step is the installation of the gutter. From him correct installation depends on the operation of the entire drainage system. There should be a distance of 0.25 cm between the roof and the outer edge of the gutter. The gutter is placed in a bracket, the joints are connected with a sealant. Then it is adjusted in size with the help of a grinder. In order to direct water from roof space into the gutter, a dripper attached to the rafter is used. Corner elements are attached to the corners of the house. The plugs are attached to the gutters with glue.

To mount the funnel, it is necessary to cut obliquely, the inside of the funnel is treated with glue, after which its edge is fastened to the gutter. After that, you need to connect the pipes to each other and the water intake funnel using clamps. Installation of pipes does not imply the use of any adhesive compositions.

Remember that in time and properly installed drain system for many years will keep appearance the facade of your house will prevent the destruction of the foundation of the building and the waterlogging of the soil surrounding the building. Installation of gutters is best done under the guidance of a specialist, and you must have sufficient knowledge in this area.

Installation of a PVC drain system
How to install a drain from the roof with your own hands? The main rule is to carry out installation in the warm season in dry weather.

The service life of any roof depends on a variety of factors - the quality of the materials used, the approach to calculations, installation technology and external influences. One of these factors is the drainage of water from the roof, with improper arrangement of which the structure is regularly exposed to moisture.

A well-designed and properly assembled roof drainage system is an important element of roof construction and requires a lot of attention. This article will discuss how to properly equip the drain of water from the roof.

Device and types of drainage systems

There are three basic schemes of the drainage system:

Unorganized drainage of rainwater from the roof. Such a design, which is also called spontaneous, in accordance with its name, provides an independent drain of water from the roof. A distinctive feature of a spontaneous drain is simplicity - nothing needs to be installed to ensure a drain. The problem is that the flowing water washes away the building, damages the wall finishes and negatively affects the waterproofing layer.
Organized external water flow from the roof. This is a classic design, consisting of a drain pipe, a gutter and several funnels that are connected to a storm sewer. As a result of the installation of an organized external drain, water is collected from all slopes and drained from the roof surface. External drain is quite simple in arrangement and maintenance.
Organized internal rain runoff from the roof. The main difference between an internal drain and an external drain is the installation of structural elements in the building itself in such a way that they are not visible. As a rule, such a drain is equipped in the case of flat roofs. Installation of an internal drain is complicated, and it will be very difficult to maintain it, especially if mistakes were made during the arrangement.

Materials for the manufacture of systems for draining water from the roof

In most cases, draining water from the roof is equipped with the following materials:

Galvanized steel. Steel is used to drain water most often. To a large extent, the high popularity is due to the fact that you can select not only ready-made structural elements, but also make them yourself using sheet metal. Galvanized steel meets all requirements: it perfectly resists corrosion, calmly withstands the effects of external factors and can easily last more than 15 years. The only drawback of steel products is their heavy weight, which complicates installation and creates heavy loads on the roof frame.
Plastic. Polymer elements are very well suited for arranging a drainage system. With most of the advantages of steel parts, plastic is less expensive, much lighter and has a wide range of colors, which allows you to choose the right color to match the roof. Installing a plastic drain for the roof is very simple - installation will not cause problems, and all the necessary elements are included. Quite often, a do-it-yourself plastic roof drain is installed, since the installation process does not cause difficulties. The biggest drawback of polymer products is their poor resistance to significant temperature changes. You can even make a do-it-yourself drain from plastic bottles, which will save money.
Copper. Copper components for the drain are distinguished primarily by their high cost, so they are used infrequently. However, the high cost is fully justified - copper is completely resistant to moisture and can work without the slightest complaint for more than a hundred years. The main disadvantage of copper parts is the heavy weight inherent in all metal products, so the truss frame and crate will have to be strengthened.

When choosing materials for arranging a drainage system, you need to build on the roofing. Seam roofing, as well as roofs made of metal tiles and profiled sheets, are best equipped with a steel drain with a plastic coating. In the case of soft roll coatings, plastic pipes for draining water from the roof will be relevant, and for copper coating, copper components for the drain are suitable.

Before choosing drain pipes for the roof, you need to calculate their dimensions, starting from climatic conditions and roof parameters. As practice shows, for small buildings a pipe with a diameter of 50-70 mm and a gutter with a diameter of 70-120 mm are quite suitable.

Pipe and drain installation

In order for the drainage of water from the roof to be feasible, two factors must be observed:

The presence of a slope to the catchment funnels;
Tightness.

If these factors are present, then with the correct installation of all components of the catchment system will work correctly.

During installation, the following rules must be observed and followed:

If the drain is heavy, then it is necessary to strengthen the frame at the attachment points of the drain elements. Plastic drains can be attached to the eaves, but metal products are attached to the rafters.
In the gap between the gutter and the rafters, a layer of waterproofing must be laid. The material is selected individually: both polyethylene film and various bituminous mastics can act as waterproofing.
Drainage elements are installed around the entire perimeter of the roof. The drain gutter is attached with a slight slope towards the catchment funnels.
The gutter itself is fastened using special brackets. The gutter should be under the roof overhang with one half, and the other half should go outside. Such an installation will ensure efficient collection of liquid and prevent the destruction of the structure due to collapsed snow masses.
Vertical risers of a drain fasten on corners of the building. A storm drain is supplied to these points (if it is not available, then containers are installed under the drains or a sand and gravel cushion is equipped). There must be a distance of no more than 50 cm between the edge of the downpipe and the ground.
Mounting brackets are installed in increments of about 50-60 cm. With a large weight of the structure, the step between the mounts should be reduced even more.

Conclusion

Drainage of water from the roof is carried out through a gutter system. Competent selection of materials and high-quality installation will allow you to create a reliable system that can effectively perform all its tasks.

Water is a great destructive force that threatens roofing materials, wooden structures, walls, as well as blind areas and the very foundation of the structure. It is necessary to competently organize its flow and direct it in a safe direction.

The correct system of such drainage of rainwater from your roof will significantly extend the life of the building and save you from unnecessary expenses for expensive unscheduled repairs. In addition, the diverted rainwater can later be used for watering plants and technical needs. Consider the types of outlet and methods of their installation, as well as the materials used for this purpose.

In this article

Types and characteristics of drainage systems

In industrial and civil construction, an internal type of removal of excess moisture from the roofs of buildings is often used. Educational and residential panel buildings are designed using flat roofs with a soft roof covering and receiving funnels facing the top floor panel. To these drains on flat roof a slope is made along which water flows to the receiving node. Drain pipelines, splitters for clearing blockages are mounted inside the structure, and melt and rain water is discharged into the storm sewer.

When pitched roofs an external type of drainage systems is used, which has its own characteristics, depending on the type of truss group of the structure. There are many roof projects for private and country construction, which will not only satisfy the most demanding customer, but are also designed for almost any budget.

Architects offer the following main solutions:

The estimated amount of water depends on the weather conditions of the region, but the steepness of the slope must also be taken into account for the correct calculation of the parameters of the drainage structure. The design of a steep roof drainage system must take into account the rate of moisture entry during peak precipitation, since the choice of section of gutters, funnels and downpipes depends on this.

If the outlet is made to the local, house, storm sewer, then its cross section must also be consistent with the estimated power of the water flow.

Materials and components of drainage systems

The choice of material for the organization of the drainage system depends on personal preferences and the affordable cost of products. Different providers offer specific color scheme and standard sizes of products, each of which has a certain service life. It is necessary to coordinate the color of the roofing, the finish of the cornices and the components of the drainage system. The convenience of installation for the conditions of a particular house is also important.

Consider the types of materials for the drainage system, which are offered by modern manufacturers.

Products made of galvanized metal are characterized by low cost, average staffing and low resistance to corrosion.
Materials with multi-layer, polymer painting, have a variety of colors, have corrosion resistance and a large set of components.
Drainage systems with zinc-titanium or copper coating, have high resistance and impeccable appearance, but their cost is very high.
PVC parts, highly resistant to UV, corrosion, sealed connections and a good range of accessories.

For efficient installation of the entire system, manufacturers offer sets of fasteners, connectors and other elements that should be considered separately, given the complex configuration of the water drainage system from different roofs.

It should be remembered that the color scheme from different suppliers, as well as the standard size, may differ slightly, therefore, in order to avoid inconsistencies and inconsistencies, materials must be purchased from the same batch.

The drainage system consists of the following list of products:

brackets of various sizes for fastening gutters and pipes, both to the rafters and to the wall of the building;
equipped with gutter connectors, with the possibility of adjusting the direction of fasteners;
internal and external corner gutters, for 90° turns;
plugs with seals;
adapter from the gutter to the funnel;
funnel;
universal rings with an angle of 72o or knees;
drainpipes;
protective mesh from debris;
couplers with an angle of 60o.

All these components are lightweight, but when assembled, they load the walls and rafters, so they must be fixed with a recommended step of about 60 cm. Suitable ones are selected from the standard section of gutters and pipes, depending on the area of \u200b\u200bthe slopes and the angle of the roof.

In the case of roofs with a complex configuration, in addition to calculating the area, expert advice is required.

Calculation of the amount of material and the necessary tool

The calculation of the amount of material is made using simple measurements and is purchased with a certain margin for cutting and marriage, but a number of circumstances must be taken into account, namely:

the slope of the gutter is in the range from 2o to 5o and depends on the expected precipitation, area and angle of inclination of the slopes, which increases the total length of the gutter;
the number of brackets must be calculated so that the gutters and pipes are fastened at least every 60 cm;
for corner gutters, the fastening must be on both sides of the gutter;
for the funnel you need additional fastening;
funnels are placed on 10 running meters 1 piece;
if the slope is more than 10 m, then it is advisable to put two funnels along the edges or one in the middle with a corresponding slope;
for a slope area of \u200b\u200b90-150 m2, a pipe and a gutter 100X75 are installed, where the first number indicates the width of the gutter, and the second is the diameter of the downpipe;
for a catchment area of 120-250 m2, you need to set 125X90;
if the slope area is 200-450 m2, then it is better to use 150X110;
the length of the pipe is calculated so that it is at a height of 20–30 cm from the blind area or is connected to a local storm drain.

In order not to be mistaken with the amount of material, it is necessary to consult with a specialist who will help to make the correct calculation.

By assembling the drainage system yourself, you can save a significant amount. In order to do the job, you need an assistant and a certain set of serviceable tools and equipment, such as:

measuring cord and plumb;
building level and tape measure;
marker or construction pencil;
nozzles and screwdriver;
perforator and electric drill with drills;
vise and pliers;
sealant;
hammer;
saw and scissors for metal for cutting material;
electric extension cord;
serviceable stairs and scaffolding.

After that, it is necessary to prepare the scope of work, distribute the material and prepare overalls and a safety rope. Do not forget about the safety rules and work with protective gloves.

The sequence of work during the installation of the drainage system

It is best to assemble the roof drainage system before installing the roofing, this will help in the future to correctly place the roofing sheets, drips and waterproofing film on the ledge. In addition, the edge of the gutter farthest from the wall, in the highest part of the slope, must be at least 3 cm below the slope plane. This is done so that the layers of snow falling during melting do not tear off the gutter. The downpipe must be fixed no closer than 5 cm to the wall of the building to prevent it from getting wet.

The main assembly sequence when assembling the elements of the drainage system is as follows:

the first bracket is marked and leveled, we fix it on the rafter or on the cornice board, depending on the roof structure;
the next is the extreme bracket, taking into account the selected angle of inclination;
then, along the measuring cord, intermediate brackets are aligned and fixed with a desired step of about 60 cm;
under the corner gutters, the brackets are attached so that they securely hold the element and connectors;
a gutter with plugs is assembled and fastened in brackets with connectors, maintaining a thermal gap between the elements;
we fix a drip for draining condensate and protection wooden structures cornice;
a funnel is attached in the gutter through the connecting element;
a protective grille is mounted;
with the help of a knee, the exact place of attachment of the drainpipe to the wall of the building is determined;
according to the level, the places for attaching brackets for pipes are set at least 60 cm;
the heating cable is passed through the pipes;
funnel, elbows and pipes are assembled and sequentially fixed in brackets;
if necessary, the lower edge is connected to the local storm sewer;
joints are sealed.

It is important to remember that if there is rubber gaskets at the junction of nodes, it is necessary to choose frost-resistant rubber.

Consultation of specialists will help you to avoid shortcomings and damage to the material, which should be resorted to in case of ambiguities and any doubt about the correctness of the decision. It is necessary to ensure that the brackets are not located at the joints of the gutters with each other, with funnels and corner structural elements. It is necessary to choose in advance a place for draining rain and melt water and equip it properly.

What is the result?

We have considered in detail the system for draining rain and melt water from the roof of the house, as well as the way it is discharged on your site. It is up to you to choose the material and method of installation, it is advisable to follow the recommendations of specialists who have practical experience in carrying out such work. Then the long service life of the drainage system is guaranteed.

Until the weirs for the roof are installed, the construction of the house cannot be considered completed. They protect the facade, foundation and blind area from the damaging effects of moisture. To create such a system, you can purchase ready-made modules, order an assembly, or build it yourself. In any case, knowledge general rules come in handy.

You will learn all about the specifics of the device of the drainage system from the article we have proposed. We will talk about how to design and calculate the spillway circuit. We will show you how to choose the material for assembly and install the structure for the removal of atmospheric water.

Mounting a gutter for a roof is not so difficult. Most manufacturers offer ready-made circuits with detailed instructions for installation.

The main task is to preliminarily think over where and where the water will drain from, correctly make the wiring and take measurements. When drawing up a drawing, you need to take into account building codes and recommendations that have already been tested in practice.

Varieties of drain structures

First you need to choose the type of system - internal or external, organized or unorganized. The type of spillway depends on the number of storeys of the building, roofing material.

It is advisable to equip houses over 6 levels with an internal spillway. These are heated buildings with a rolled or mastic roof. An internal drain is also appropriate for a flat roof.

An unorganized system justifies itself in regions with low rainfall, but requires good waterproofing of the foundation and slopes. A hidden drain is effective and aesthetic, but difficult to install and operate.

If the levels are up to 2, you can get by with an unorganized system. The most acceptable and recommended option according to SNiP for buildings up to 5 levels is an external organized drain. It is easier to install than others and is not difficult to maintain.

Key Design Factors

Before buying gutter elements, a drawing of the roof perimeter is drawn up with all protrusions, turns, angles are measured. This helps to determine the parameters of the system, to make calculations. But the gutter project should be based on justification.

There are 3 factors that are taken into account in the calculations:

area and design features roofs.
The amount of precipitation.
Minimum possible temperature.

The diameter and footage of pipes, the number of funnels and brackets - it all depends on the area of \u200b\u200bthe roof. If it does not exceed 100 m 2, gutters with a diameter of 7-11.5 cm are suitable, the diameter of downpipes is 7.5-13 cm. If the roof area is more than 100 m 2, gutters with a cross section of up to 20 cm and drains up to 16 cm are needed .

Detail calculation principle

The number of gutters is calculated along the perimeter of the roof and the length of one slope. Next, the number of joints of parts is determined and it turns out how many connecting elements are needed.

The number of fasteners depends on the material chosen for: for metal, the distance between fasteners is 40 cm, for plastic - 70 cm. Plugs are placed on each pipe break, funnels - on each drain.

The nuances of arranging a roof of complex shape

Here you need to collect water from each slope, bay window, it is advisable to mount several gutters. If you equip the system according to the principle of a minimum, a strong flow will enter the pipes, which will slow down when passing through the gutters. This will create a load on the entire structure.

Sometimes additional channels for collecting water are needed above the balconies, along the perimeter of the turrets, in architectural superstructures. Such places are problematic to get rid of freezing and moisture ingress.

Rounded elements are of particular difficulty. In this case, a radius drain is made from gutters soldered together, which can be painted for aesthetics.

For lucarnes and skylights plums are not required. They are made only if the area is large and the slopes are multidirectional.

One more possible problem when designing a drain for a complex roof - a large number of elements. Color helps out: the details are matched to match the roof or contrast with it. The design also uses the shape of the profile when it is installed as an architectural element.

The choice of materials for the drainage system

Quality, appearance, price - three parameters that guide the selection of materials for the spillway. Climatic conditions are also important: in regions with sunny hot summers, metal is preferable, for territories with increased level moisture is better than plastic.

An article devoted to the analysis and evaluation of both varieties will help to compare for the organization of the drain.

There are several options on the market:

Galvanized steel. Inexpensive and easy to install solution. But steel is susceptible to corrosion, so the durability of the structure is questionable.
Polymers. They look attractive, you can choose the color to match the roof, they serve for a long time. But they are moderately fragile, they require accuracy during installation.
Copper and aluminum. These materials look solid, emphasize the material capabilities of the owner. Their service life is unlimited. The only thing that stops you from buying copper or aluminum parts is the high cost.

Regardless of the material, each system consists of pipes, prefabricated funnels, angles and gutters. consists in assembling them according to a pre-made scheme and fastening. The parts are connected using adapters with sealing gaskets.

There are adhesive systems on the market, but they are more difficult to assemble than snap-on designs. The latter, for additional reliability, can be “insured” from the inside with roofing sealant

It is important that all the necessary components of the spillway are found in one outlet and from one manufacturer. Lack of something can slow down the installation process.

When selecting gutter details, do not experiment with trying to adapt handicraft elements to existing circumstances. It is better to immediately stop at products from trusted manufacturers.

On sale will come across elements with a rectangular section. They are usually 10-15% cheaper than round ones, but are more difficult to install and require an appropriate facade design. They are appropriate to use to bypass ledges or bad corners.

When choosing a material, reliability also matters truss system, it must support the weight of the weir. When in doubt, opt for lightweight polymer constructions.

Features of mounting elements

The time depends on the stage of construction / installation work. During the construction of the building, it is installed before laying the coating. During the repair period, if a roof change was not planned, installation is carried out at any time, but in this case, the gutter brackets are attached to the frontal board, and not to the rafters.

Until recently, only under-roof fasteners existed. Today you can find different types hooks, brackets that allow you to collect drainage before and after installation of the roof.

The general installation algorithm looks like this:

The location of vertical pipes is determined, taking into account the placement of doors and windows. Usually these are the corners of the building or the center of the facade (if the length of one wall is more than 18-20 m).
Funnels are installed at the lowest point of the gutter.
Brackets are mounted. The main holders are placed 10-15 cm from the funnels, the rest - at the same distance of 40-60 cm from each other.
The gutter is laid in the brackets, taking into account the expansion of the selected material.
Gutter connectors are mounted between the brackets with a distance of 10-15 cm.
The gutter is connected to the funnels. If the gutter consists of several parts, it is more convenient to assemble them first, and then fix them along a conditional line that continues the roof. Distance - about 1 cm from the edge of the roof.
Corners and plugs are mounted. If the angle at the roof is not straight, adjustable parts are selected, which are cut along the turning lines. This is how bay windows work.
Pipes are installed 3-8 cm from the wall of the building. Plastic or metal clamps are attached to fix the drain to the facade.

The distance from the final drain to - from 15 cm, to the ground - from 25 cm. If set lower, there will be a risk of ice formation inside the pipes, which can lead to rupture.

An indent of at least 3 cm must be observed from the wall to the pipes so that the surface does not become damp. To bypass architectural elements or change the direction of the flow, a 135 degree elbow is acceptable.

Installation of a plastic drain is carried out at a temperature of +5 degrees and above. can be made at any time safe for roofers, regardless of temperature indicators. After installation is complete, the system is ready for use.

Maintenance of prefabricated structures

Modern materials do not need regular staining or treatment with special compounds. In order for the drainage system to cope well with its functions, it must be regularly cleaned of dirt and debris. This is usually done once a year in the fall.

A common cleaning method is to use a hose, when all contaminants are simply washed off with water pressure. On sale there are also robotic devices for caring for plums. They are equipped with an intelligent system that independently calculates when and how many times it is necessary to “ride” the gutters in order to remove all debris.

If you do not monitor the condition of the drain, debris can block the flows, the liquid will begin to accumulate in problem areas and flow out through the edges of the gutters. Additional load on the pipes will lead to breakage of the elements and collapse of the structure.

In order to prevent the formation of ice jams in gutters and vertical pipes, it is recommended to set. The article we recommend will acquaint you with the nuances of his choice and installation rules.

Conclusions and useful video on the topic

Components and installation features plastic drain.

What happens to the drain if it is not cleaned of dirt in time.

To reliably protect the house from moisture, one drain is not enough. You need to take care of the drainage system, which includes storm trays, grids on them, sand traps, liquid collection tanks.

Rain is not always good. For example, during precipitation, water flowing from the roof of buildings can greatly harm them. Falling streams and even drops eventually knock out potholes in the blind area. Water soaked into the ground near the house can flood the foundation or basement. To avoid all these troubles, moisture must be removed, for this purpose plums from roofs are used. They can be made in different variations, but serve the same purpose - to protect the building from destruction. In this article we will talk about how to install plums on the roof on your own.

What elements are included in the drain system

Before you install a drain on the roof, you should find out what elements it consists of. The drainage system includes:

Gutters. This, one might say, is the main element of the entire system. Water enters the gutter directly from the roof, then it flows to the drain. The drain itself is made in the form of a funnel, which is also part of the system. Gutters can be made from various materials and have different shapes.
Gutter connectors. Roof length may vary. The gutters themselves, if they are factory-made, have a certain length. As a rule, you can find products up to 2.5 meters. To create a system, special devices are used - connectors. At the corners, other designs are used - corner gutters.
Brackets and other fastening devices. Serve for fixing gutters and pipes.
Drain pipe. It is into it that water from the gutters enters. The pipe can be both straight and be made in the form of a knee.

In addition to these basic elements, others can be used. For example, mesh on gutters. It prevents large debris from entering the drain and prevents blockages from forming.

In regions with cold winters, it is worth considering anti-icing systems. They may include heating cables, temperature sensors and other devices.

Gutter types and material used

On sale you can find gutters and pipes of various diameters. So, the first ones are produced in the range from 90 to 150 mm. Pipes can be purchased with a diameter of 75 to 120 mm. The choice of dimensions will depend on the dimensions of the roof. If the slope area is less than 70 m 2, then you can purchase gutters and pipes of the smallest diameter.

In addition to the sizes and shapes themselves (square, round and others), the elements of the drain differ in the material used. Mostly metal and plastic.

There are several types of metal gutters and pipes for drains. Let's list the main ones. Namely:

Galvanized steel. This material has often been used in the past. But recently, galvanized steel has begun to be replaced by an analogue with a pural coating. This is due to the long service life of the latter. Galvanized iron itself quickly fails under the influence of acid rain. But such material still remains in demand due to its cheapness.
Aluminum. Gutters and pipes made of this metal are light and quite durable. Such products last much longer than galvanized steel, but are also more expensive.
Copper. Such products are considered the most durable. In addition, they give the roof a sophisticated look. But copper is a very expensive metal, so such gutters are not available to everyone. When installing copper gutters and pipes, it is important to consider one feature. If the roof is made of any metal or there are other metal elements, then such products cannot be installed. The fact is that water, flowing down on another metal and falling on copper, will lead to corrosion of the latter.
Titanium zinc. This is the most expensive option for elements of plumbing systems. Such gutters can last a century and a half or more.

Roof drain installation

All work can be done in any season, but it is best to do it in the warm season. In summer, everything can be done much faster and better.

Before you make a drain on the roof, it is worthwhile to calculate the necessary materials. Decide where the drain pipes will be located, how many gutters, brackets, connectors and other elements are needed. It is best to make a preliminary plan and drawing.
Then start attaching the brackets. It is important to correctly calculate the distance. The fact is that the gutters should not be located close to the wall. If the distance between them is less than 6–8 cm, then the wall may get wet not even from water, but from condensate.
Also, when mounting the brackets, it is necessary to maintain the slope of the gutters. It should go to the drain pipe and be 5-20 mm per meter. Therefore, the brackets are not attached in a straight line, but with an offset.
Before attaching, it is worth making a markup. To do this, you can do some calculations. For example, if the length of the slope is 8 m, and we will make the slope 10 mm per meter, then the offset between the first and last bracket should be 80 mm.
If the length of the roof is significant, then it is necessary to make two drain pipes, they will be located at the edges. In this case, the slope will start in the middle and go in different directions.
The first and last bracket is attached first. Then a thread is pulled between them, and the remaining brackets are mounted using self-tapping screws. Between the brackets it is necessary to maintain a step of 40-70 cm, depending on the weight of the gutters. Do not forget that the gutters will be attached to each other, which means that there should not be a bracket in this place.
Then the gutters are installed. The method of their installation depends on the model. End caps are installed. The last step will be the installation of pipes. Its neck should be directly under the drain of the gutter. Pipes are attached to the wall on special holders or clamps.
A drain elbow is installed at the end of the pipes. Through it, water from the roof will be diverted away from the walls and foundation. If a drainage system is provided on the site, then the knee should be directed to the water intake.

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Video

A detailed video on the installation of a drain with useful recommendations: