How to make gutters for metal roofs do it yourself
Today, commercial gutters are coated with a polymer layer. Such structures can serve for a long time, but they are expensive. Therefore, many owners of country houses prefer to make water drainage systems on their own, using, for example, tin or roofing iron.
How to make a project
The main structural elements of any drain are:
- drain pipes.
When draining from the roof, rain or melt water first enters the chute. Then it enters the funnels and goes down the drain pipes into the storm sewer of the house. Chutes to the roof structures are attached by brackets. For fixing the drain pipes on the wall of the house used clamps.
When designing a gutter system of a country house, it is important to determine:
- the size of the gutter;
- drain pipe section;
- the number of fasteners;
- step installation of drainpipes.
It is believed that for buildings with a roof of up to 70 m², the diameter of the downpipe should be 50-70 mm, and the gutter 70-115 mm. For a building with a roof of up to 100 m², these figures should be 75-100 mm and 115-130 mm, and over 100 m² - 90-160 and 140-200 mm, respectively.
Drainpipes in country buildings are usually installed in 8 m steps. That is, no more than 1-2 of these elements are usually mounted on each wall of a house.
The brackets are purchased or manufactured independently at the rate of approximately 1 pc. per meter length of gutter. Clamps for installation of the drainage system with their own hands need two for each pipe segment.
When assembling the drainage system of single-story houses of a small area, usually no more than two drainpipes are installed. Moreover, these elements are collected in this case with a maximum of two segments. That is, for the installation of the drain of such a building, it will be necessary to manufacture no more than 8 clamps.
What materials and tools will be required
Tin to build a drain with your own hands should be taken galvanized. Simple metal under the action of water in the subsequent very quickly rust.It is believed that for the manufacture of drainage systems of country houses is best suited tin thickness of about 0.55 mm.
Brackets designed for mounting gutters to the roof can be purchased ready-made, and you can also make your own from steel strips. The material in this case should be taken quite thick. Indeed, during operation, the chute will be subjected to quite serious loads. Making brackets with your own hands should be made of steel with a thickness of 2 mm.
Roof drains can be made from sewer pipes or also from tin 0.55 mm thick. In the latter case, you need, among other things, a mallet. You will also need to prepare one old metal fairly strong pipe.
How to make a chute
Roofs of even not too large suburban buildings usually have a large area. Making the required number of grooves of a semicircular cross section without special equipment for the drain of a private house will most likely be problematic. Therefore, self-made elements of this type usually have a triangular or U-shaped cross section.
The gutters of the drainage systems of country houses are made according to this technique:
- strips of about 300–350 mm wide are cut from sheet metal;
- strips are bent in a triangular or U-shaped gutter.
For a one- or two-story suburban building, gutters of this size are likely to be sufficient. In order to bends in the manufacture of this element of the drainage system turned out smooth, you should use the following technology:
- a marking line is drawn along the center of the strip cut from a piece of tin;
- one half of the strip is enclosed under a thick board;
- the second half is bent on the outer part of the board.
To bend the tin in the manufacture of the gutter should not be his hands, and the second board. In this case, the material will not go "waves". It is better to bend the tin with not a thick but a thin board of about 20 mm.
In order to avoid injuries in the subsequent cleaning of the drain, the edge of the gutter, which later will be located outside, should be additionally bent inwards twice. In order for the edge to turn out to be smooth, in this case, not a board should be used as a template, but, for example, a steel corner.
How to make brackets
Fasteners for the gutter are usually made as follows:
- from a steel strip with a thickness of 2 mm and a width of 20 mm cut pieces of a length of about 400 mm;
- strips fold in half at an angle of 90 °;
- one of the sides is folded again 90 ° inwards;
- two holes are drilled in the curved end;
- the remaining long end is given a configuration corresponding to the cross section of the groove;
- drill holes for fasteners under the gutter.
Curved at an angle of 90 ° the end of each strip will subsequently be attached to the roof structures. On the same strip in the process of installing the system is installed chute.
How to make drainpipes
Roof drainage systems for single-storey houses are often made without drainpipes. When using such constructions, thawing and rainwater simply merges from the gutter extending beyond the plane of the wall down into a storm well or into a receiving barrel.
Of course, the easiest way to equip for a private house is a roof drainage system of this type. But if you wish, of course, you can add this design and drainpipes. This element of the roofing drainage system of a country house is usually made using a mallet according to this technology:
- a strip with a width of 300-350 mm is cut from a sheet of tin;
- the strip is mounted on a metal corner;
- on both sides of the strip on each side, the edges are bent at an angle of 90 ° to one side;
- the workpiece turns over and the bend angle increases to 150 °;
- two more hook-like bends are made in the other direction;
- the workpiece is wrapped around some pipe of the appropriate diameter;
- bends hook one after another;
- hooks knock with a mallet before crushing the metal.
Funnels for drainpipes do about the same technology. But in this case, a piece of tin is usually cut in the form of a trapezoid so that the funnel enters the inside of the drainpipe for about 5-10 cm in length
How to make clamps
These elements, if desired, can also be made by hand. It should use the same steel that was used for the manufacture of brackets. The strips in this case should be cut in accordance with the diameter of the drain pipe. In order to find out the length of these elements, simply add 4–5 cm to the total circumference of the pipe.
After the strips are cut:
- holes are drilled at the same distance on both sides of each of them;
- with the help of pliers or vice, the “ears” are bent.
Each clamp is subsequently made of three such elements:
- in the two lanes additionally drilled holes in the center;
- all the bands are bent in a semicircle along a piece of some pipe;
- strips with central holes are bolted together in perpendicular planes.
In the subsequent installation of the drainpipes, the element assembled from two strips will be attached to the wall. The remaining strip will be fixed by the pipe itself. The strips used to fasten the clamp to the wall, if desired, can be made shorter than those that will “crimp” the pipe.
How to build a system
Installed do-it-yourself metal gutters on the roof as follows:
- Brackets assembled from steel strips are attached to the frontal board with two bolts;
- the chute is installed in the brackets so that the edge of the roofing material enters it;
- the gutter is fastened to the brackets with bolts;
- gutters with funnels are fixed to the wall of the house on the clamps.
The brackets to the frontal board of the roof should be fixed so that the chute subsequently had an inclination in the direction of the funnel of the drainpipe about 1-2 mm per 1 m. Of course, it is impossible to install this element strictly horizontally. Otherwise, water will subsequently stagnate in the gutter.
Also, the brackets are fixed, taking into account that they also fall on the overlaps between the individual elements of the gutter. The overlaps themselves must be at least 15–20 cm in length.
Each subsequent element of the gutter should be installed on top of the previous one along its slope. Otherwise, water will flow into the joints, which will adversely affect the work of the drainage system.