Some people prefer to do this work themselves, for this they watch videos on the Internet. To do this, you need to enter into the search engine: roof rafters - video and you will be taken to sites where such videos can be viewed.
Raftering is a complex construction process, on which the longevity of your roof and, accordingly, your home depends. Rafter structures of pitched roofs do on wooden, stone houses, roofs of summer residences, wooden baths and so on.
Works that are mainly performed during rafters:
- They prepare the rafters for installation, and also make markings so that there are no mistakes. When marking and preparing, take into account such parameters as: the location of the chimney, hoods, as well as roof windows.
- Draw the horizontal line of the skate.Whatever the skate does not interfere with, it must be precisely positioned, then the roof will not leak, and the aesthetic appearance will be impeccable.
- Also, these types of work include: installation of rafters, withdrawal of departure, fixing, on the roof, ridge, and so on.
- Facing the pediment is also an integral part of this complex work.
Your attention! As for the price, it can be completely different, depending on the professionalism of the workers you will hire for this job. Basically, prices range from 500 rubles per square meter of work done, but, in principle, you can pick up much cheaper.
As you know, the strength and stability of the roof depends on the supporting structure, that is, the truss system.
They have to do a great job:
- support the weight of the roof
- atmospheric pressure
- force of wind, rain, snow
The fastening of the rafters to the walls of the house must be strong, because this directly depends on the stability and reliability of the system.
As a rule, in private construction, they use roof truss system made of wood, the whole secret is that they can correct some of the defects that were made in the walls of the building.
The tree is easy to change, so it can be hewn, cut, and thereby, if necessary, correct the mistakes made. Among other things, wood is one of the cheapest building materials, so this fact also plays an important role. .
The installation of the roof truss system in a stone house must be performed at a high level, so, if necessary, you need to order this work from professionals who have been engaged in roof rafters for a long time.
Sometimes they use rafters made of metal, as well as concrete, but this is in cases where stone and brick houses are being built.
When installing the rafter system, they can use parts such as nails, staples, bolts, clamps, with which the rafters are attached.
Before installation, all wooden rafters are protected from fires, that is, they are treated with special chemicals, and so that they are not spoiled by bugs and mold, they are treated with antiseptic agents.
Laminated rafters are used only in cases where the walls of the building on the opposite side are at a distance of no more than 6 meters.
If such supports are used in stone houses, then in such cases a Mauerlat can be used. Mauerlat - these are bars measuring 14-16 centimeters, which can be placed around the entire perimeter of the house, in addition, due to their properties, they can be placed under the rafter legs.
The main mistakes in roof raftering can be called the wrong calculation, which is necessary for the section of the rafters of the required size. If initially the calculation was not correct, then after a certain time, the rafters can sag, and this will negatively affect the roof of the house itself.
Tip! To avoid such a negative effect, you need to use special gratings, as well as crossbars that connect the rafter legs.
You need to know that you need to connect the rafter legs with the crossbar somewhere on the floor of the tree, while using wooden nails, bolts, staples.
The connection of the crossbar and the rafter leg:
- rafter leg;
- crossbar;
- brace
The rafter legs are connected to the crossbar by cutting a frying pan half a tree.
If you want to minimize the damage that precipitation can cause, then when you work with the roof, be sure to consider the overhang of the eaves.Its length must be at least 55 centimeters.
It should be said that sometimes hanging rafters are used, which are attached to the attic floor on one side, namely to the beam. The other side can be attached to a coupler, which is located on the outer wall.
The distance between the rafters, which are installed in this way, should be at least 120 centimeters.
To your attention! In order for the rafters to withstand gusts of wind, they are also diagonally fastened with boards, which should be at least 30-40 millimeters in thickness.
When choosing rafters, you need to understand that you choose them for at least 20 years, so many experts recommend buying rafters that are made from coniferous trees.
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