Roof gutters are part of a full-fledged gutter engineering construction of buildings. The system is designed to provide collection and removal of precipitation products (rain, melt water), thereby fulfilling the function of protecting the facade, foundation and adjacent elements.
Typically, the device of such systems is the prerogative of professional builders. However, making roof gutters with your own hands is also quite possible. Let's figure out how to do it.
Water waste system of houses
To have an idea of how to make gutters for the roof of a house or a barn with your own hands, at least basic information about the system as a whole is needed.
A gutter for the roof of a private house is an essential element that ensures the durability of the building. Usually arranged in the process of building a building. If you wish, you can make a drain yourself
The design, designed to protect the foundation of the building, to prevent erosion of the soil and flooding of the basement, consists of the following prefabricated parts:
- gutters;
- gutter mounting brackets;
- drainpipes;
- connecting elements of direct branch pipes (couplings);
- fixing collars of drainpipes;
- tees, contours, plums, plugs;
- funnels and grids of water collectors.
Bypass gutters - mounting elements assembled from separate trays, including corner ones.
The gutters are placed directly below the lower edge of the roofing and are fixed with brackets.
Image Gallery
Photo from
Rain gutter system
Gutter and drain funnel
Connecting the gutter to the drain funnel
Storm sewer inlet
Thanks to the gutters, water is collected over the entire roof area and the collected fluid is redirected to the location of the funnels of the drainpipes.
Round gutters are used in the construction of drainage systems more often than the same rectangular elements. But such statistics do not mean that rectangular gutters are worse. Both configurations show good results.
About pipes and fittings
A constituent element of the system is drainpipes (metal or plastic, round or rectangular), designed to discharge water from the level of the uppermost floor of the building to ground level.
Drainpipes are assembled from several separate pipes connected to each other by connecting elements. The fully assembled pipe is fixed vertically with fixing clamps.
Additional elements of the drainage system are plugs for gutters, contours, tees, funnels, protective nets, gratings.
A set of fittings traditionally used in the construction of drainage systems of private houses. When constructing a system with your own hands, all these elements will be required in an amount determined by calculations
The gutter caps are installed at the ends of the gutter lines, have a variety of configurations and shapes (right-handed, left-handed, universal). Due to the contours, neat installation of pipes is carried out on complex architectural sites. Tees provide technical stains, and funnels, nets and grids contribute to the effective removal of water.
We also recommend that you read our material on how to independently calculate the amount of necessary materials for arranging the drainage system.
Self drainage system: instruction
With basic knowledge, it is already easier to solve the problem of how to make gutters from the roof of a private two-story house. But for a complete picture of possible projects, it is advisable to familiarize yourself with the methods that are used to build such systems.
There are two ways (except for the so-called unorganized system):
- The device of the internal drain.
- The device of the external drain.
The first method is widely used on buildings of several floors (more than two). The peculiarity of the scheme is obvious - drainpipes are mounted inside the building with their placement in close proximity to the bearing walls.
A good example of an external drainage system mounted to the roof of a private house. In this design, all mounting elements made of polymers are used. The only exceptions are shanks of mounting clamps made of metal
The second method of outdoor installation of drainpipes is almost always used for private low-rise housing construction. It differs from the first method by the placement of gutters outside the building.
Quick photo guide
The steps for assembling and installing the gutter system are carried out in a standard manner. We will analyze the construction option produced after the installation of the roof. The master who wants to make a drain has to perform the following steps:
Image Gallery
Photo from
Step 1: Installing an Optional Slat
Step 2: Trying on the long-leg holders
Step 3: Preparing the end holders for installation
Step 4: Attaching the Brackets to the Slat
Step 5: Verify Slope in the Markup
Step 6: Installing the plug on the edge of the gutter
Step 7: Assembling the gutter for the ramp
Step 8: Attaching the Gutters with Long Brackets
To collect and drain rainwater, it is necessary to attach a drainage funnel and a riser to the gutter, along which the water will drain either into a container for its collection or into a storm sewer:
Image Gallery
Photo from
Step 9: Marking the funnel installation hole
Step 10: Drilling a hole according to the marking
Step 11: Attaching the Gutter to the Gutter
Step 12: Assembling the Gutter
Installation of a drainage system
As a rule, work on the installation of the drainage system begins to be carried out before the start of laying the roofing or at the final stage of laying the lower roofing sheets.
However, if the roof structure allows you to mount the gutter on the cornice (frontal) board, the drain can be made after laying the roofing carpet. But work on the front of the building should be finally completed in any case.
The sequence of actions is as follows:
- Mounting gutter brackets.
- Assembly, installation, fastening of drainpipes.
- Drainage system device.
The brackets that will hold the gutters in a horizontal position are fixed on the bottom board of the crate, preferably at the point of its stop on the rafter beam. Or they attach the brackets to the cornice frontal board. In any case, the frequency of mounting brackets relative to each other is not more than 600 mm.
Assembly instructions for the gutter system require accurate exposure to all mounting dimensions. It is especially important to comply with the established figures for the placement of elements if the structure is created from plastic parts
The brackets should be mounted in such a way that after mounting the gutters, their front edge is 20-30 mm below the line of the roof plane.
Bias and indentation control technique
When creating a gallery of brackets, it is necessary to take into account the slope towards the prefabricated funnel of the drainpipe. To do this, taking into account the specified slope, the initial and final gutter holders are mounted and the control cord is pulled between them.
The permissible slope of the gutter is 2-3 mm per meter of length. Indents from the extreme end lines of the roof to the first and last brackets are made at a distance of 50-100 mm. The same rules apply to the distance from the bracket to the receiving funnel of the drainpipe.
Using the control cord (the second thread stretched between the brackets), the “stick out” of the front edge of the fasteners relative to the conditional edge of the roofing is also controlled. Here, the distance from the conditional edge of the coating to the front edge of the gutter bracket should equal the maximum radius of the semicircle of the mounting bracket, at least 1/3 of the radius.
The installation procedure of the gutter brackets is accompanied by a control of the slope and the indentation from the edge of the roofing. To do this, use a simple technique - lacing, stretched from the start to the end bracket
At the end of the installation, gutters are laid with their subsequent fixation with special projections of the brackets, installation of end caps and receiving funnels.
Production funnel
For the connection of the gutter with a drainpipe, the installation of a receiving funnel is necessary. Do-it-yourself installation of this part in the system is easy.
The process is as follows:
- Take the structural part - the receiving funnel.
- Attach the bottom to the wall of the gutter and outline the contour of the hole.
- Drill a hole in the wall of the gutter along the marked line.
- Strip the edges of the hole with sandpaper, coat with glue.
- “Fasten” the part to the gutter with locks, aligning the holes.
There are several options for receiving a funnel on the gutter. For example, instead of drilling a hole with a crown mounted on a drill, you can make a through hole with two counter-cuts using a conventional hacksaw for metal.
With your own hands, just make a hole in the wall of the gutter for installing the receiving funnel. Using a conventional hacksaw, a piece of plastic is cut out. Droppers are usually made on the central points of the cuts on both sides.
It should also be noted that in some cases of installation, the introduction of compensation (sensitive to thermal expansion) receiving funnels is required. Such parts are placed between two cornice trays and fastened in a standard way on special locks without the use of glue.
How to make drainpipes from the roof?
The calculation of the number of drainpipes is done according to the number of receiving funnel gutters and depending on the height of the building. By standards, for 10 meters of the length of the gutter, one receiving funnel is enough.
The length of pipes for industrial gutters is usually 3-4 m. When assembling, it is recommended that emphasis be placed on the minimum number of pipe connections. That is, the optimal installation option is the use of nozzles 4 m long.
Together with straight pipes, two standard contours (angle 112º) and one drain for each unit of the drainpipe will be required (subject to the traditional design of a residential private house).
From the outlet of the receiving funnel, due to the connection of the two bypasses, the exit under the water pipe is discharged closer to the wall of the building. If necessary (depending on the width of the cornice), the contours are supplemented by a pipe section.
To drain the drainpipe from the cornice to the wall, which is done to reduce the windage of the system, corner elements are used. Connect them in accordance with the width of the eaves: either with each other or with the use of a piece of pipe between them
Next steps:
- The lower contour is supplemented by a connecting element (sleeve).
- From the bottom of the sleeve, the first straight pipe is inserted.
- A clamp is attached to the pipe under the coupling and secured to the wall.
- Until the next annular connection, mounting clamps are mounted every 1.8-2 meters in length.
- The next clutch is put and the process is repeated.
So, the drain is assembled to its lower edge at a distance of 30-35 mm from the wall of the building. The horizon of the lower edge of the drain according to standards is set at 250-400 mm above ground level.
You can read the detailed installation instructions for roof gutters here.
Image Gallery
Photo from
Step 1: Measure the distance to bypass the cornice
Step 2: Cutting the connecting piece of pipe
Step 3: Stripping the burrs by cutting the pipe
Step 4: Fixing the vertical section of the drain to the wall
Connections by contours and couplings usually include seals with rubber rings included in the kit of fittings. But instead of o-rings, the option of using glue (for plastic) is also acceptable. A drain is mounted on the lower edge of the drainpipe if there is no surface drainage system around the perimeter of the building.
To collect rainwater, a sampler is installed in the tank on the gutter riser:
Image Gallery
Photo from
Step 1: Installing the Rainwater Collector
Step 2: adjust the device height
Step 3: Assembling the Gutter
Step 4: Connecting the hose and water collection tank
Some features of polymer systems
Compared with metal gutter structures, polymer systems attract with their economical installation and simplified assembly.
Meanwhile, plastic has the properties of structural changes in conditions of fluctuations in ambient temperature. Therefore, for everyone who decides to make a gutter for the roof of a private house with their own hands, these properties of the material should be borne in mind and apply the installation technique with compensation for thermal expansion.
Compensation of thermal expansion / contraction is achieved, for example, by incomplete insertion of the smooth ends of the pipes into the socket parts. Also, a loose tightening of the rim of the mounting clamps unlocks the axial shift of the parts as a result of thermal expansion.
It is advisable to limit the use of glue when installing drainpipes, to apply it only on one of the parts of the joints. Installation of bell-shaped joints should be carried out in the upright direction of the bell.
Mounting element design that provides for thermal expansion compensation. It is used on the assembly of gutters. Similar design solutions are used on other parts.
Almost all manufacturers of modern drainage systems have taken into account the properties of plastic and produce shaped parts (expansion elements) adapted to temperature changes. The temperature scale is indicated on the case of such parts, according to which they are mounted in the system.
Due to temperature, plastic deformation is possible. Therefore, you must comply with the installation standards, the distance between the fasteners. Compliance with the rules is a guarantee of a quality roof drainage system.
In this material you can get acquainted with all the advantages and disadvantages of plastic and metal gutters.
You can learn about how to properly design a drainage system from the following video:
Assembling the gutter system with one's own hand is a task to be solved. It is clear that independence is primarily aimed at saving. Meanwhile, when planning to make a gutter with your own hands, it is advisable to carry out calculations based on parameters such as the total roof area and the average rainfall intensity on the ground.
The calculation results will contribute to additional savings, since they can accurately determine the need for materials and parts for installation.
Have questions about how to equip a roof drain for yourself? Ask them in the block with comments, and we will try to quickly give an answer to them. There you can share your experience or give valuable advice on the arrangement of the drainage system to visitors to our site.