After the construction of the walls of the garage, the question arises of how to build a roof. The quality of this design will depend on the right choice of material. Before starting the arrangement of the roof system, special attention must be paid to the study of technology.
Methodology
Building the roof of the garage, you will proceed in several stages, the first of which involves the construction of a rafter system. Next, waterproofing is laid, the selected insulation material and vapor barrier are covered. At the last stage, you will need to work with covering material. If you do not need insulation, then the work will be much easier. However, the storage conditions of vehicles will be worse.
Preparatory work
The roof of the garage should fit in sunny weather. To do this, you need to familiarize yourself with the forecast for several weeks in advance, since the work will be carried out for a rather long time. To begin with, the concrete floor must be cleaned of the old material, which has become unusable. When laying a new layer on an old coating, you will not be able to create a flat surface. For this stage, you can use an ax, knife, and also a chisel. The ax will allow making notches over the entire area, and after the roofing material can be torn off with a knife.
In more difficult places, a chisel is used. If the roof leaked, it would be necessary to exclude such errors. To do this, small cracks are sealed with liquid glass, while impressive ones should be filled with mounting foam. Before closing the cracks, the surface is treated with a brush moistened with water, after which the base should be left for some time. Using a knife, you can cut off the excess. Sometimes cracks are sealed with cement-sand mortar, special adhesives or roofing mastic.
Recommendations of a specialist for preparatory work
At the next stage, it is necessary to treat the cleaned plate with a primer. If there are protruding sections of the reinforcement, they must be treated with phosphoric acid. This procedure eliminates further corrosion. If the stacked plate does not have even the slightest slope of 5 degrees, then this situation can be corrected using a layer of cement screed. This will allow rainwater to flow freely from the surface.
Roof waterproofing
When the roof of the garage is laid, you can not do without laying the waterproofing layer. To do this, you can use the euro or ordinary roofing material. The first option, unlike the second, is more easily laid. The term of its use is longer. And before laying, there is no need to process the base. Euroruberoid should be warmed up, then you can proceed with installation. Such a surface will last about 25 years, which is 5 times longer than the period during which a conventional roofing material can be used.
In order for the garage roof not to require repair during use, before laying the euroruberoid, you can treat the surface with bituminous mastic. The blowtorch will allow to heat up the lower layer of material before boiling. At this time, the surface on which the waterproofing will be laid should be heated. With the help of a metal hook, the roll is unrolled, under it during this process wrinkles should not form. It is important to eliminate the formation of air bubbles.
This material can be laid in one layer. It is necessary to do this, providing an overlap. Usually its width is 150 millimeters. In order to prevent leaks, the material should go into the nearby installed garages for 100 millimeters. If the repair of the roof of the garage will be carried out by laying the euroruberoid, then for its heating it is most effective to use a blowtorch. However, as practice shows, a large amount of fuel is needed to operate. An alternative solution is a gas burner. But its operation is dangerous due to the need to use a gas cylinder.
Installation of ordinary roofing material
Despite all the advantages of the above material, the traditional roofing material does not lose popularity among consumers. If you want to use it as a waterproofing, then before laying it is necessary to roll the rolls so that they have time to level out. If there is not enough space, then the material is rewound to the other side. Laying usually starts from the bottom. The base is best treated with mastic. Due to the lower ductility of bitumen, it undergoes worse exposure to high temperatures, cracking with time. Before applying the mastic to the surface, it should be heated to 200 degrees. After you can proceed with the installation of roofing material. At the same time, it is also important to ensure overlap between the canvases, which should go into neighboring buildings, pre-treated with mastic.
The choice of material for the roof
The roof of the garage can be represented by different materials, however, each of them has certain characteristics and provides for compliance with the installation rules. Choosing a professional flooring, you exclude hit of rainfall in the room. Sheets are installed using self-tapping screws that are screwed into the depth of the corrugation. Along the edge, the material is reinforced along the ridge or overhang in every second fold. The life of such a roof will be 50 years.
When choosing materials for a garage roof, you should pay attention to the slate coating, which is made from asbestos cement. It has low weight. Before laying in sheets, it will be necessary to make holes for installing nails. Installation of paintings is carried out according to the same technology that is used when using slate. Recently, slate has been losing its position in favor of corrugated board, since the latter lasts longer, is easier to assemble and does not provide for additional preparation of sheets.
Soft roof: ondulin
The soft roof of the garage is ondulin. The material allows the formation of an almost waterproof surface, as it differs in water absorption, tending to zero. Being in the wetted state, it does not absorb moisture. Ondulin is characterized by high resistance to temperature influences, tolerates heat and cold, and does not crack during sharp changes in temperatures, which distinguishes it from other roofing materials. Despite the fact that it is based on organic matter (most often cellulose), the material is biologically inert. It is not damaged by bacteria and fungi and is not of interest to insects. As an important advantage, which makes the installation of a roof from ondulin justified, its low layer is.
Recommendations for work
If the roof of the roof of the garage will be done by you from ondulin, then first you will need to do the installation of the crate. Most manufacturers advise carrying out these works at positive temperatures that do not rise above 30 degrees. This is due to the fact that in the cold, ondulin can become brittle, and it is necessary to move along its surface. Use when fastening the material to the elements of the crate should be nails with hats of a special shape. About 10 nails will be needed for the top of the sheet, and the same amount for the bottom. If the soft roof of the garage roof will be carried out on a surface with a slope of up to 10 degrees, it is important to equip a continuous crate of moisture-proof plywood. In the presence of a slope of more impressive steepness, a rarefied crate of timber can be arranged.
Methodology
Ondulin does not provide for the mandatory use of waterproofing. However, experts advise laying a layer of hydro and vapor barrier over the lathing. This is especially true in cases where there is an attic or a heated attic under the roof. After that, you can start laying sheets. This must be done in a run-up. The joints of the horizontal row should be located opposite the whole parts of the sheets of the adjacent row. The overlap during installation will depend on the slope. If the angle is less than 10 degrees, then the vertical overlap should be equal to 30 centimeters, as for the lateral overlap, then it will be 2 waves. For a slope of greater steepness, it is necessary to reduce the width to 20 cm and 1 wave, respectively. The material is fixed in a zigzag fashion. The lower part is strengthened in each wave, then the waves should be alternated, driving nails alternately in the upper and middle parts.
Local repair of a soft roof
Garage roof repairs can be carried out locally. For this, it is necessary to cut out pieces of roofing material from the prepared sections. Holes are coated with bitumen; molten resin can be used for this. The cut piece as a patch is laid inside and pressed tightly. From above everything is poured with mastic or resin. A patch is glued over the site, the dimensions of which should be 15 centimeters larger on all sides. For reliability, the base is processed again with previously used materials.
Cost
If you will be roofing the roof of the garage, it is recommended that you study the prices in advance. Perhaps you decide to entrust the matter to professionals. For example, laying ondulin costs 800 rubles. per square meter. As for slate, its installation will cost less - 300 rubles. per square meter.
However, it is important to consider that you will also have to pay for the installation of the crate and related materials. In the first case, the work will cost 200 rubles. per square meter. While the installation of roofing material costs 80 rubles. per square meter. But replacing the roof of the garage can be done by you yourself, then you will spend money only on the purchase of materials.