There are several technologies that can be used to repair a garage roof yourself. Choosing a specific methodology restoration work depends on the level of wear of the roof, its type and directly on the type of motorhome.
Restoring the roofing of a house for a car is currently carried out using three main technologies: soft materials, hot bitumen, tiles or profiled sheets. Private garages are mostly covered with inexpensive and at the same time durable materials - modern ondulin and flexible tiles, corrugated sheets. You can easily choose the optimal method of “treating” the roof of a motorhome, focusing on the type of roofing.
Regardless of the technology chosen, you will need to properly prepare the roof for repairs. Inspect the roof, determine the level of its operational wear, determine roofing elements which must be replaced without fail. In cases where the old coating as a whole is still quite suitable, remove only the problem areas by cutting them out with an ax. Subsequently, they can be replaced with new elements, significantly reducing the cost repair work.
Preparing the roof for repairs
If the covering was made with roofing felt or a similar material (a soft roof is installed), swelling and cracks often appear on it over time. With similar problem areas needs to be sorted out before repairs begin. This is not difficult to do: cut the defective areas crosswise with a well-sharpened knife; Bend the resulting triangles and clean out debris and dust from them.
When carrying out repairs, you will need to fill such areas with corrected defects with bitumen. Below we will talk in more detail about how to correctly perform such an operation. Clean the roof surface thoroughly and wash it with water if necessary. Now you can begin restoration activities.
Bitumen – popular material, providing high quality repair work carried out independently. Repairing a garage roof with its help will require you to stock up on the following equipment: a ladder, an old bucket without holes, gloves, gasoline and firewood, rope, a metal hook, bricks.
Garage roof repair with bitumen
The work technology is as follows:
- Build a grill for heating using bricks and build a fire under it.
- Place a bucket with bitumen poured into it on the fire and wait until the material acquires the required plasticity.
- Use a metal hook and rope to lift the bucket onto the roof.
- Fill defective areas of the roof with plastic material. You can use a wooden board to give the bitumen stream the desired direction.
When pouring, pay special attention to those places that you cut into preparatory stage. Such areas must be filled completely. Then, when it rains, water will not penetrate through the roof into the garage. The entire soft roof or exclusively damaged areas can be filled with bitumen.
For a long time, domestic home craftsmen have been performing roofing repairs using roofing felt. It is treated with a special mastic (bitumen) and placed on the damaged areas of the coating. In general, the technology for roof restoration using roofing felt looks like this:
- Cut out pieces of material according to the required geometric parameters.
- Pour mastic into the holes on the roof (you can also use molten resin).
- Cover the defective areas with pieces of roofing felt.
- Fill the made patch with mastic.
- Bend the holes cut crosswise, place another piece of roofing felt on top of them (it should be slightly larger in size than the area being repaired) and pour mastic again.
Ruberoid can be used to renew the entire roofing area. In this case, you will need to fill the garage roof with tar. After this, lay sheets of roofing material on it (an overlap of 13–15 cm is required). It is recommended to fill tar in parts. Then it will not have time to harden, and you can calmly repair the entire roof piece by piece.
Ruberoid for roofing repair
Sometimes bubbles form on the surface of the roofing material during installation. It's OK. Using a knife, cut them, and then press (as tightly as possible) the cut sections to the roof and apply another layer of tar on them.
If you want your garage roof to be completely protected from precipitation, it is recommended to lay two layers of roofing material. Then you will definitely get a very reliable coating that will not let a drop of water into the motorhome. It is even easier to repair a garage roof with bicrost. To carry out such restoration, you do not need to purchase tar and mastic. Bicrost is laid using a gas burner. The scheme is as follows:
- Roll out the roll of material (about half a meter).
- Heat the underside of the bicrost with a gas unit.
- Press (you will need a special stick in the shape of the letter T) the heated material to the roof.
- Stand with your feet on the area you just laid, roll out the roll another 50 cm, repeat the steps for heating the bicrost and installing it.
Note! All subsequent strips of material should be laid with a 7–9 cm overlap. The cost of repairing with bicrost is significantly more expensive (3-4 times) than restoring a roof with bitumen or roofing felt. But with its help you restore roof covering literally in a couple of hours. Labor costs when using bikrost are minimal!
If your motorhome is protected on top with metal tiles or corrugated sheets, repairing them is also quite simple. Not at all difficult to replace separate element tiles or install a new profiled sheet. True, when the need arises to completely replace the roofing, the cost of such work will be significant due to high price coatings used.
Installation of new profiled sheets on the roof
Metal tiles are mounted on the roof from bottom to top. To install it, universal self-tapping screws with a special rubber gasket are used. You can make cushioning products yourself. It's even easier to purchase them at hardware store. There are latches on the bottom and top edges of the tiles. With their help, you will install products (the operation is carried out with an overlap). There is no point in describing the procedure - everything is really simple.
You will have more trouble replacing a corrugated roof. We'll have to stock up circular saw, screwing device. Perform the work according to the scheme below:
- In the upper corner of the roof (choose any one), install a corrugated sheet (experts advise to start by just lightly grabbing it with a screw).
- Attach two more products in series.
- See if the edges of the sheets coincide with the line of the roofing ridge. If necessary, align them.
- Fasten the roofing products tightly.
Pro tip! It is best to fasten the middle of the profiled sheets in a checkerboard pattern, and their lower and upper parts - through a wave.
Comments:
Speaking about how to fill a garage roof with concrete, you should know that this mixture is suitable exclusively for buildings that are planned to be used long time. If you plan to use the garage for a maximum of 10 years, then it is recommended to choose less durable and expensive materials.
The concrete roof is quite strong, but due to exposure to moisture it gradually collapses.
Constructing a concrete garage roof is quite simple, but you need to have some skills. You should also know that this process is labor-intensive.
Before you start covering the roof with concrete, you will need to decide on the shape future design. Not only will this depend on appearance construction and ease of use, but also the complexity of all construction work.
Choosing a roof covering
In the process of constructing garages, you can use coverings of two forms: horizontal and inclined. Sometimes you can find roofs and more complex structures, however, they are built without the use of concrete.
Gable structures are rarely covered with concrete mortar, since pouring in this case is quite difficult. Concrete is heterogeneous and has a lot of weight, so during inclined pouring the solution will tend downward. In this case, it will not be possible to obtain a layer that will be evenly distributed in thickness over the entire roof. In order to form gable roof, you will need to use a mobile frame structure, which is quite difficult to manufacture. The construction of this roof will take a large number of time.
You can make a garage roof from reinforced concrete slabs. However, you should understand that they are heavy, so you will need to use additional equipment. The joints of the roof, which is mounted from these slabs, will need to be additionally waterproofed.
Due to such shortcomings, a horizontal roof is most often erected. The construction technology of the structure resembles the creation of an ordinary concrete screed. You will definitely need to provide in advance for the possibility of quickly delivering the mixture to the construction site. For this, a concrete pump or block lift, which you can build yourself, is most often used.
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Tools and materials you will need
To pour the concrete mixture during the construction of a garage roof from foam blocks or other materials, you will need to prepare the following elements:
- Rule. It will be needed to level the concrete solution over the base. The tool is a wooden plank with a handle attached to it.
- Tamping. Used to compact concrete mortar during pouring and remove air bubbles from it. This device is a block of wood with a handle. The tamper must be heavy.
- Brush for ironing cracks. In this case, you can use a larger paint brush round shape with hard bristles.
- A piece of steel rod. Will be used to remove voids in the poured mixture.
All such devices can be bought at a construction supermarket or built yourself.
If you don't want to use hand tool, then you will need to prepare the following elements:
- Vibrating screed.
- Grouting machine.
- Construction probe.
- Concrete mixer.
- Mesh for sifting sand.
- Shovel.
- Container for diluting concrete mortar.
- An ordinary bucket.
The following elements should be prepared for coating:
- I-beams made of metal. Will be used as load-bearing elements.
- Concrete grade M250 or higher. It is recommended to purchase a ready-made solution or make it using a concrete mixer. The mixture, which will be prepared manually, will not achieve the desired quality and consistency. If you plan to make the solution yourself, then you should prepare crushed stone of a fraction of 1-2 cm, cement and sand.
- Reinforcing rods with a diameter of more than 1 cm. If the mesh is not welded, but knitted, then you also need to prepare wire with a diameter of more than 1.5 mm.
- Boards for the construction of frame structures.
- Ruberoid or sheet of steel.
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How to fill a garage roof with concrete: instructions
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The process of constructing the substrate and frame structure
The bottom shelves of the slats need to be lined with boards. To build a base, you will need to lay a layer of roofing material or a sheet of metal on top of them. If the support turns out to be insufficiently reliable and cannot support the weight of the roof, then additional supports should be installed.
One support must be provided for every 50 cm².
During the construction of the frame structure, you will need to ensure that the boards are closely adjacent to each other.
If this is not taken into account, then during the process of pouring concrete mortar, cement laitance may leak through the gaps, from which to a greater extent The strength of the concrete garage coating will depend.
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How to properly make reinforcing mesh?
Reinforcing bars should be laid across and along the beams. You need to ensure that the grid cells are 20x20 cm. If you plan to arrange welded mesh, then all work should be performed on the ground. Further finished design will need to be lifted onto the upper floors of the garage. Tying the reinforcement can be done on the roof, however, it will be additionally necessary to fasten the reinforcing bars to each other so that the mesh does not move during the process of pouring the concrete mixture.
To avoid excessive consumption of concrete mortar and obtain a coating of equal thickness, crushed stone should be placed under the reinforcement. During the installation of reinforcing bars, you need to ensure that a gap of 4 cm is maintained between the mesh and the frame structure. If this is not taken into account, the metal elements may protrude beyond the base of the concrete mortar or be placed at its edge. The result may be not only uneven filling of the solution, but also the subsequent appearance of rust, which cannot be eliminated. This will not affect specifications roof, however, will worsen its appearance.
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Instructions for proper concrete laying
The solution must be laid in strips. The installed beams should be used as a guide. The thickness of the layer should be more than 15 cm. Before performing all work, you need to calculate the time of their implementation so that there are no unfinished strips left.
Concreting of such elements should be carried out continuously so that the concrete solution can dry evenly. The recommended time for pouring the mixture is 1 day.
During the process, it is important to ensure that the reinforcement mesh does not move.
In order to be able to easily dismantle the frame structure in the future, its internal walls must be lubricated with used machine oil.
During the pouring process, the mixture must be leveled using a rule and compacted with a tamper. Large bubbles and air pockets must be pierced with a probe or steel rod. Frame structure Periodically you need to tap so that the mixture lies evenly. The base should be compacted until it begins to shine from escaping moisture. It will not be possible to build a monolithic concrete roof without a tamper. The laid and compacted mortar can additionally be leveled with a shovel or a grouting machine.
Cracks and gaps should not form on the base, as moisture can get into them, which can destroy the structure. Defects can be removed only after the solution has dried. For this concrete base need to be moistened with water thin layer pour cement onto it, then rub it in with a brush until the base becomes completely smooth and shiny.
Concrete screeding of a garage roof is only possible if you are confident in the reliability of the foundation and walls of the building. Most often it makes sense to pour the screed on brick garage, which is installed on a tape or slab foundation and is designed for long service life.
More often concrete screed Garage roofing is performed with a horizontal or inclined roof structure. The remaining options - gable or complex geometry of the roof structure - pouring concrete does not make sense, it is too expensive.
What are the advantages of a concrete roof screed over monolithic reinforced concrete floor slabs and when should you choose concrete roofing?
Installing floor slabs on the roof is much more convenient and faster than pouring cement screed. The only downside is that such coverage will cost more and you will need to hire lifting equipment.
When choosing a roofing option, an important fact is the load-bearing capacity of the walls and foundation of the garage. If the garage is old and the foundation is shallow and strip, then it is better to choose a roof structure made of wood.
Even at the roof design stage, it is necessary to calculate all the loads on the walls, taking into account the weight of the roof covering.
Concreting on corrugated sheets
The weight of the floor can be reduced by concreting the roof over corrugated sheets.
Sheets of grade “N” are strong and quite rigid, resistant to corrosion and light in weight. Thanks to the wave, the sheet forms additional stiffening ribs during subsequent casting concrete slab overlap increases bearing capacity roofs. Then, using such a roof, you can confidently build an extension over the garage.
The use of a profiled sheet when casting such a concrete slab reduces the cost of purchasing materials for formwork and reinforcing frame, since it itself is a permanent, durable formwork for the floor. The consumption of concrete mortar for such a floor slab will also be lower.
This method allows you to simplify the work of pouring a concrete screed for the garage roof and avoid installing complex formwork. This technology reduces the load-bearing load on the walls and foundation of the garage.
An additional advantage of the technique is resistance to adverse weather conditions and beautiful finish inside the garage - finished ceiling made of profiled sheets, durable open fire and high humidity.
When calculating loads and pouring concrete using this technology, it is important to take into account that when installing a frame for corrugated sheets, you need to install three load-bearing beams. To minimize the bending of the sheet, the pitch between the longitudinal beams is set to 50 cm.
How to make a simple screed on the roof of a garage - detailed instructions
The screed on the garage roof is the most reliable option ceilings If you select good material for roofing, the durability of this coating is the highest among other garage roofing options.
Materials for concrete garage roofing:
- ready-mixed concrete (grade 250), it is advisable to choose a composition with anti-frost and water-repellent additives. The cost of such a solution will be about five percent more expensive, but it is resistant to moisture and low temperatures the screed will be much higher;
- preparing concrete mortar with your own hands using a concrete mixer. We take the composition in the ratio of 30 kg of cement (M400) - 40 kg of sand and about 30 liters of water, you need a solution consistency like thick sour cream, you will also need medium-fraction crushed stone. You can add lime for plasticity (the ratio to cement and sand is 1 to 6). Lime must be dissolved in water and infused, then added to the dry mixture of sand and cement;
- It is good to add ready-made air-entraining additives and anti-freeze additives to the concrete solution to reduce thermal conductivity (can be bought at a hardware store);
- For load-bearing roofs you will need I-beams (12 or 15) for a standard garage no longer than five meters;
- reinforcement (10 mm), for knitting the reinforcing frame you also need knitting wire;
- old boards or thick plywood for formwork;
- rolled roofing felt or steel sheets - the basis for pouring concrete.
Let's consider performing the work step by step, stopping at important nuances, which must be remembered when pouring the garage roof.
- first you need to position the floor beams, securing them securely in the wall (we cement them);
- then roofing felt (in two layers) or metal sheets are laid. You can also install profiled sheets over the beams, which will make the garage roof lighter and stronger;
- We begin laying the roofing felt from the bottom point of the roof. We place the sheets overlapping, it is necessary that the roofing material fits tightly to the roof, for this it is heated and compacted several times. It is important that after installing the roofing felt layer there are no bubbles or voids left;
- if the walls of the garage are one and a half bricks long and you are not sure that the support of the ceiling only on the walls is reliable, then you need to install additional supports;
- Now you need to set up the formwork. You can cover the roof plastic film so that the concrete does not spread and cement laitance does not leak out.
- after that you need to set the beacons according to the level. We take into account that it is necessary to slope the garage roof by approximately two degrees to drain rain and melt water;
- reinforcement can be done using a mesh (cell 20x20) or by tying a reinforcing frame from reinforcement. It is not advisable to weld the frame, since when the concrete hardens, the screed may simply break;
- It is necessary to leave a gap of 4–5 cm between the reinforcing layer and the formwork so that the metal does not protrude beyond the screed and critical cold bridges do not form. We level the surface with a layer of crushed stone of the middle fraction;
- It is better to pour the screed even with your own hands right away, in one go, this guarantees an even layer of concrete strictly along the beacons, without gaps and cracks;
- If it is not possible to fill the entire surface at once, then we concrete it in strips, along the beacons. Screed thickness – at least 15 cm;
- the inner surface of the formwork must be lubricated with working oil so that after the concrete has hardened, the boards can be easily removed without damaging the screed;
- During the concreting process, it is necessary to “pin” the layer with reinforcement to prevent the formation of bubbles and voids, and also to compact it thoroughly.
- to concrete mixture evenly distributed along the edges of the roof, tap the formwork around the perimeter during the concreting process. Fill the screed in two layers, leveling each one;
- when the concrete sets, it will take a maximum of a day, depending on the weather, it is necessary to level and rub the surface so that there are no cracks left through which the screed quickly collapses;
- Concrete hardens, depending on the brand and weather conditions, 14 - 28 days. In hot weather, the screed must be periodically moistened with water from a spray bottle to prevent cracks from forming, and in extreme heat, the concrete surface must be covered with a layer of film or boards. Concrete should not be allowed to dry in direct sunlight;
- During the hardening period of the screed, the surface is ironed several times. We water the screed with water from a hose, pour a thin layer of cement and rub it into the surface with a brush. It is necessary to ensure that the surface stops absorbing powder, is even and smooth, without a network of small cracks and water stains;
- in the first three days, when the concrete screed hardens, it needs to be moistened with water in the morning and evening, then one wetting per day for a week is enough. If the weather is hot and dry, then you need to wet the concrete every four hours;
- the formwork can be removed ten days after concreting.
If all work is carried out in compliance with technology and no expense is spared on high-quality additives, then such a garage roof will last for many years. How to repair a concrete screed?
Garage roof repair
Repairing a concrete garage roof with your own hands is not difficult. The main thing is to find all the cracks, voids, gaps and chips and carefully seal them.
- when sealing cracks and joints, first thoroughly clean the crack, and then seal it with a water-repellent sealant, wait until the composition hardens, and only then rub the repaired surface with cement;
- mostly repairs concrete roof comes down to removing the old destroyed coating, removing debris and dirt. It is important to remove the entire destroyed concrete layer and identify all voids and pockets in the screed. When re-pouring the roof with concrete, pre-moisten the surface with a primer deep penetration for cement, this will improve adhesion and ensure thorough sealing of the old concrete screed;
- It is safer and more practical to use liquid rubber instead of cement screed for the roof, which creates a durable water-repellent coating layer and does not carry a large load on the walls and foundation of the garage. The cost of such a coating is not much more expensive than a concrete roof.
The video story describes in detail the process of pouring the roof. liquid rubber(step by step).
When starting to build a garage, or when renovating it, you need to pay attention Special attention roof - the safety of the car and all other equipment in the garage depends on its quality.
Most often, the garage roof is one or gable roof made from metal sheet or metal profile. It is rare to insulate a roof, but even the use of insulation various types does not prevent water from penetrating into the building during heavy rainfall. In addition, there is always a risk that in winter, under the weight of fallen snow, the garage roof may become deformed.
Stages of work
Although screeding a garage roof is a labor-intensive and time-consuming process, it nevertheless not only has high waterproofing properties, preventing water from entering the room, but also prevents the roof from deforming under loads resulting from heavy winter precipitation.
Note! On a dried cement screed for better connection First you need to apply a special bitumen primer.
Bitumen primer can be purchased at construction markets, although the price will be quite high, or you can make it yourself: the simplest method that people use is to fill the resin with diesel fuel (gasoline) + used motor oil, and it will dissolve itself in this environment. Half a bucket of bitumen will require 2 liters of diesel fuel. Applying this primer will ensure maximum adhesion. waterproofing material with a screed.
Often, instead of a primer, a special burner is used to heat the waterproofing material rolled out over the surface.
Video
See how to properly tie a garage roof:
The garage is a sacred place for every responsible motorist, where the “war horse” is stored and maintained, as well as a warehouse for those who do not have all their belongings at home. Although this building is not considered residential, a leaking garage roof can become a big problem for its owner. Roof leaks occur due to damage to the surface of the roofing material. In this article, we'll talk about what you need to do to protect your garage roof from leaks using affordable and easy-to-use materials.
When your garage roof leaks, you suffer from mold and mildew. rafter frame and wall decoration. Leaks occur due to defects on the surface of the coating through which precipitation penetrates. Most often, the garage roof is made from inexpensive or low-quality materials without the involvement of professional roofers, so the cause of the leak may be a violation of the roofing technology.
- The same defect is caused by the following damage:
- Cracks. Cheap roll roofing, from which the garage roof is made, under the influence of temperature changes, becomes covered with cracks where moisture seeps in. Mechanical damage. Soft roof
- are damaged by falling branches, stones and debris on the roof surface, as it becomes damaged when the temperature rises.
- Fungus and mold. Harmful microflora softens the surface roofing material, may make it vulnerable to leaks.
Important! Many owner own garages wondering what to do to prevent roof leaks. It is quite possible to cope with this problem on your own without large financial investments. The main thing is to identify the problem in a timely manner and not put off repairs indefinitely.
Methods for eliminating leaks
Deciding what to do when a leak occurs garage roof, it is important to correctly estimate the volume roofing works. To do this, you need to carefully inspect the roof surface and identify any existing defects. The technology for restoring the roofing sheet depends on the area of damage. Depending on the volume of defects, you can do the following:
- Spot repairs. If the area of damage does not exceed 10%, then spot repairs are made to eliminate minor defects (cracks, holes, mechanical damage). This damage can be filled with bitumen or covered with patches.
- Maintenance. To restore a roofing sheet with an area of 15-20% damage, Maintenance with partial replacement of waterproofing material. To do this, you need to remove the top, worn layer of the roof and cover it with a new one.
- Major renovation. If the amount of damage exceeds 40%, then perform major renovation. It consists of completely dismantling the old coating and laying a new one. This is the most expensive type of repair, which is recommended to be done once every 10-15 years, depending on the quality of the roofing material.
remember, that regular maintenance and prompt elimination minor defects– the key to a long service life of the garage roof. If you perform the annual preventive examination roofing sheet, you can save a lot of money on a major restoration of the roof.
Sealing small cracks
If during the inspection it was revealed that the cause of the leaking garage roof are small cracks that appear on the surface of the roofing material due to temperature changes, then they can be repaired with bitumen.
- To do this, use solid bitumen, which needs to be melted, or ready-made liquid bitumen, supplied immediately in finished form. The technology for sealing cracks is as follows: Surface soft roll roofing
- cleaned of debris and dust. From roofing felt using sandpaper or a grinder with grinding disc
- Carefully remove the armor coating that interferes with the sealing of the crack.
- The crack must be carefully filled with molten bitumen or cold bitumen mastic.
- After the bitumen has dried on the surface, the procedure is repeated 1-2 more times to level the surface of the roofing.
- To protect the roof surface from mechanical damage, while the mastic has not dried, you can sprinkle it quartz sand or small stone chips.
Please note that when sealing cracks it is more convenient to use cold bitumen. Hot bitumen mastic requires careful handling and quick work, while cold bitumen mastic is sold in ready-made form, so it is easier to use. To seal small cracks, 1 can of liquid roofing material is enough.
Restoring canvas using patches
Another simple and inexpensive way to fix garage roof leaks is with roofing felt patches. It is suitable for minor damage to the fabric, localized in different areas roofs. For patch repairs, you need roofing felt with coarse-grained or flake coating, bitumen mastic, a knife, varnish and sandpaper. The technology for restoring a roof using this method consists of the following steps:
- Roof cleaning. The surface of the roof slopes is thoroughly cleaned of dust, debris and dirt.
- Preparation. The surface to be repaired is freed from the armor coating in order to improve adhesion between the layers, degreased and dried with a construction hairdryer.
- Cutting patches. Patches are cut from a roll of roofing felt, the size of which is 1.5-2 times more area damage. To straighten the patches, you need to leave them on a flat surface for 1-3 hours.
- The area to be repaired must be filled with bitumen to create a film that improves the adhesion of the patch.
- The lower surface of the roofing felt patches is heated gas burner, and then pressed tightly to the roof surface.
- The patch is top coated with 1-2 layers of kukersol varnish or the same bitumen mastic to enhance waterproofing.
Note! To make patches, it is recommended to use roofing material with a density of at least 400 g/m2. It is more convenient to patch the roofing sheet using self-adhesive material. Laying of built-up roofing material is carried out only at temperatures of +5 degrees and above.
If the garage roof is damaged quite severely, then the roof is restored with partial replacement of the roofing material. In some cases, installation of a new coating can be done without dismantling the old one. However, if there are swellings and bubbles on the roof surface, then you first need to remove the top layers of rolled roofing material, under which moisture has accumulated.
- In order to properly cover the slope with a new layer of roofing felt to eliminate leakage, you must:
- Remove the old covering. 1-2 layers of worn roofing material are dismantled, the surface of which has a lot of swelling and damage.
- If there are swellings on the roof surface, they must be cut crosswise with a knife, the moisture squeezed out, and then left to dry.
- A layer of topping is removed from the roof surface. Since the amount of work is quite large, grinding is easier to do with a grinder with a special attachment. However, you need to act carefully so as not to rub the roofing material into holes.
- The coating from which the topping has been removed is primed with bitumen mastic to create a sticky film that improves the adhesion of the new layer. Ruberoid.
- After a few hours, when the mastic has set a little, you can begin laying a new layer of roofing material. Installation of roofing felt is carried out with the strips overlapping each other by 10-15 cm. The bottom layer of low-melting bitumen material is heated with a burner and then pressed with a roller on top of the old coating.
The second layer is spaced apart from the first so that the joints on them do not coincide.
Experienced craftsmen say that garage roof repairs should be carried out in dry, windless weather at temperatures of +5 degrees and above. To avoid injury, you need to work in compliance with safety regulations and use insurance.