Repair of a metal roof with your own hands Construction
Do you have a reliable metal roof that you built yourself? You can be proud of your achievement. But what to do if with the years she began to deteriorate and leak? It is necessary to identify leakage and eliminate it.
Content
What are the reasons
The main cause of damage to the durable metal roof of the buildings is corrosion, which leads to the penetration of moisture inside the room. It is impossible to leave for the repair of the roof, you need to act immediately.
Before starting the repair of the metal roof, you need to know the cause of the leakage.
The base for the flow of the roof may be as follows:
- wetting of the insulating layer;
- roof defect;
- if the drainage system failed;
- the tightness of the roof is impaired in the place where the roof is adjacent to the structures (chimney, wall, antenna, etc.);
All these reasons may be caused by different faults. For example, when a low-quality fastener was used when mounting a metal roof. It is also possible to enter moisture to the room where poor-quality coverage originally was laid. Under the influence of atmospheric precipitation, as well as after mechanical cleansing of the roof of snow, the coating could be damaged.
Detect the leak place is not as easy as it may seem at first glance. This is especially true of the device of the metal roof: one- or two-sheet type. In such structures, water can fly in one place, and the leakage will appear completely in the other.
To have a clear understanding, how to act in case of leakage of the metal roof of the house, it is necessary to identify its damage.
Distinguish the following types of damage:
- when the moisture indoors appears during the rain or after a certain amount of time. The reasons may be mechanical damage to the roof or insufficient hermetic. Also, moisture inwards can be associated with the deformation of the roof base (when the joints, cracks and shuffle shuffle), which may be caused by the temperature or wind load;
- during the "spring" leakage due to the melting of the land, which is formed on the drain funnel and grooves. In this case, the ice contributes to blocking the flow of melting water, which also leads to leaks;
- in the summer, the roof can proceed not only after the rain, but also during the wetting of the heat insulating layer;
- in case of violation of the masonry of a brick parapet, as well as in the non-compliance with the standards for the construction of the width of the protective umbrella and apron.
It is advisable to start eliminating the leakage immediately as soon as you saw that the metal roof flows. If it is not repaired in time, then this may lead to serious consequences - rotting wooden floors. In this case, the roof repair will cost very expensive.
We look at the roof
To detect the leak on the roof, you must carefully examine the attic. To do this, you need to rise to it and check in what condition is the floor, waterproofing and rafters. If they have mold, raw places or rot, it may indicate possible leaks. Also, if moisture penetrates through the roof, then it will leave dark spots on wooden floors. In particularly "launched" cases, it can even discolor the wooden floor and overlap.
After a fluid inspection should also check the room from the outside:
- inspect the integrity of the skates and their elements;
- see whether the waterproofing layer is not disturbed;
- check the attachments of the aprons in those places where they are adjacent to the roof and elements installed vertically;
- fall into the lower part of the roof and examine each element for vegetation and garbage;
- pay attention to the carnice board, as well as the bottom cover - they can most often suffer from rain and wind;
- check the drain pipe (perhaps she has been drunk), as well as a funnel, gutter, ventilation channels. Pay attention to cracks and holes.
If, after a thorough inspection, you did not reveal anything, wait for bad weather and climb into the attic: you will see a place where water flows. Note it with chalk. After the roof serves, you can start repairing a metal roof with your own hands.
How to repair a metal roof
Metal roof is considered one of the easiest materials for coating the roof. In addition, the use of metal sheets for the construction of private houses is economically very beneficial.
The metal roofing device consists of a wooden crate and cornices. According to the technology, the metal design of the roof provides for laying boards at a distance of 25 centimeters from each other. If you do not adhere to these rules, the inner side will be badly ventilated, and this can lead to the appearance of rust and possible leaks.
Frequent causes of leakage of metal roofs are corrosion, mechanical damage and depressurization of seams.
First option
Repair of iron roofs are performed as follows:
- The place of damage is cleaned with a brush for metal.
- From the roofing material (metal sheet) cut the patch. Its size must be five to ten centimeters more than damaged area.
- The place where the leak is detected, and the edge of the patch is covered with flux, and then solder them with a soldering iron.
- Color the roof is completely or partially.
If damage is significant, then it is necessary to fulfill the full replacement of the spoiled steel sheet to the new one.
Second option
If your metal roof is painted with oil paint, then under the influence of direct sunlight, the metal will expand. After some time, he will break the lifting elasticity of paint. Water will fall into it. As a result, the metal of the roof will begin to shock and the hole is formed on the surface, through which the moisture will penetrate the inside of the building.
Prevention and elimination of small metal roof leaks are performed by this plan:
- Places where the paint swollen and crackled must be cleaned with a brush for metal.
- Remove dust.
- Water with a dry cloth.
- Oil paint paint the place in two layers.
You can reinstate and impose on the damaged place the flap of dense tissue. It is immersed for a couple of hours in the paint, then carefully pressed too much and put the leakage. The edges of the patchwork carefully smooth so that they do not wrap up, leave until complete drying. After the paint serves, the place of the patchwork is painted in the main tone of the roof.
You can do otherwise: first, the damaged place on the roof is painted with thick paint, and on top there are a piece of dense tissue (it should be dry) and press the edge with a spatula well. The poppip is left to dry.
If we compare both options for repairing small holes in a metal roof, then the first option will provide high-quality repairs, and the second will save time and take rid of moisture penetration into the premises.
In addition, if there is no desire to mess around with paint, you can use the usual sudic lull, adhesive tape or purchase a sealant for metal roofs.
To prepare a suck for a metal, you need to add olive in the paint, mix so that the mixture becomes homogeneous. Before staining and while working so that the pigment does not donkey on the bottom, the mixture must be mixed periodically.
Third option
To get rid of moisture penetration inside the building, you can use a waterproof sealant. Today, one of the most popular insulating materials is "Emphimatics". It is suitable for repairing all kinds of roofing, including metal. The sealant fills the cracks well and other defective areas in the metal roof.
To start repairing the roof, you need:
- Clear the problem space from dust, dirt (pre-priming the surface is not necessary).
- Degrease the metal roof solvent (acetone or 646 solvent is suitable).
- Fill the hole with a sealant.
Each metal roof design must be equipped with lightning protection. Lightning protection of the metal roof prevents not only lightning in the building, but also serves to protect against metal overheating, and therefore, to some extent, it allows the roof from the formation of leaks.
At this photo, it is clearly visible how to additionally increase the sealing of the metal roof in problem places:
How to repair a metal roof you can look at this video: