Window lintel with his own hands

before those who builds a house with his own hands, at some point the question arises: to buy a jumper for the windows in the store or make them their own hands.Shops jumpers buy safer.One can see the quality and if they can make a complaint to the manufacturer.If you build bridges with your hands, then you can submit a claim only themselves, but they will come out much cheaper because it will need to pay only for the materials.

Types jumpers

from the use of methodsjumpers and their dependent species:

1. Supporting structures - keep the load on the plates used for floors.
2. not load-bearing structures - take on the burden entirely on the masonry wall, which is located above the window opening.
3. «Pencils" - a structure that is put on the doorways, they are thin and do not carry.
4. «Runs" - a large-sized bearing lintel.
5. «Rigel" - large bridge with a shelf that supports the design, which is at the top.

most commonly used in construction and bearing and non-bearing lintels, they are placed in the openings of windows and doors.And they are quite realistic to make their own hands.

bridge construction technology Before starting the manufacturing of window directly jumper, you need to decide which kind of them you will use, and what size.If the house is not large, which has a lightweight roof, then it is not possible to put a jumper bearing the species.Also, the same type of bridge can be set and when the ceiling on all floors are of belt reinforcement.In these cases, they assume the load evenly.
technology creation jumper looks like:

1. need to create a bridge for the front brickwork, its role can play a metal corner.Its dimensions of 7.5 cm. Necessary to install it so that there was no vertical outside shelves.At the level of the window you want to place a quarter of a corner edge.Then the window will, as needed, when it will be installed.The size of a quarter window - 5cm Pour
2. jumper window There are two ways out of the window, and then installed in a doorway or over the window opening..In principle, and no large difference.If the second option would have be busy with the construction of the formwork on the site of the window, in the first - on their own to lift and carry a jumper.This option is harder in the sense that the take for the crane to move the structure is sometimes impossible.Pour jumper box directly into cheaper and easier and faster time.But it will be more difficult installation, because it will not only keep itself, but also the heavy concrete mass.Yet most of the builders stop on this variant.

formwork jumpers

To erect formwork for bridges, you will need:

• wooden boards, 2-2.5 cm in thickness.They will go to manufacturing panels;
• nails or screws, which are attached the board;
• screwdriver to work with self-tapping screws.

Progress:

1. Set in opening horizontal shield so that it rested on props.It is on par with a clutch or a little out of it.If backups are beyond the sides of masonry, then a shield at the top rather than the side of the opening.
2. On a billboard in the center of the formwork put fittings and screws securing the shield.
3. to shield did not move during concreting, it bolted to the wire grid masonry and pull together.Thus, the shield carefully lie down to the window and did not move because of the large load of concrete mass.

Warming formwork

Insulating layer should pass between the bridge itself, and masonry.And as a heater can be used mineral wool from the 190 cm thick.Vata is necessary to lay the formwork before the concrete casting.This method of insulation of window jumpers, there is one significant drawback: in the future, when you install a window in the opening, it will come into contact with wool, and does not help to correct the situation even foam for installation, no matter how well it would not have filled the gap.If you take mineral wool as insulation, then the window slopes need to impose a brick to brick, it is in the rests, and then the window locks using the foam for mounting and will stand firmly.No foam bricks will come into contact with wool.But then it is necessary to insulate and slopes.If you are ready for such "complexity", you can safely use wool.In the end, you still have to get a good warm box, securely fixed and without drafts.
If you think that the extra challenges you to anything, you can try to use as insulation Pumpan - is extruded penoprostirol, he has a solid consistency, in contrast to mineral wool.Its thickness sheets -. About 3 cm When you mount the insulation, the gap that occurs between the insulation and the frame, you need to fill in foam for installation.The foam solidifies when abuts Pumpan and the window will be firmly secured.In this case, you do not have to use an additional layer of insulation.Yes slopes do not need to insulate.

reinforcement and strengthening of the formwork

The type of lintel above the window depends on the diameter of the reinforcing rods.For this bridge, which is not a carrier, the armature can be used consisting of two cores of 0.8 cm. The fitting of the window to be laid along the web.And seal bars to each other via a wire.They do not need to be connected by welding.As a result, external fittings will look like a simple little stairs.

installing horizontal shield, you need to use props.There are builders who ignore this point.They do not take into account that the concrete has a considerable weight.And when will be poured formwork, or it may damage the board or some of his shift, and finally a jumper form will not be perfectly flat and in the future to fix it is practically impossible.It is better to initially verify the reliability of the design.
When you consolidate backup, which is located in the center of the window opening, then slide it slightly to the window, so you do so that the angle is not within the slack, because it will be secured to the panel.

Fill jumper

To fill the window jumper, you need to perform a number of jobs:

1. Prepare concrete 200. For this part of the mix of cement with two parts of sand and five parts gravel.
2. for ramming of concrete usually use electric vibrators, they look like a table on which the compacted forms with concrete.But if you do not have this tool, you can do an ordinary stick, which you need to tap next to the structure, so that the concrete villages.
3. Keep reinforcing mesh was in a good state with respect to the horizontal board.Thus, it will be hereinafter fully recessed in the concrete, and not stick out.Therefore, before you pour the concrete, beneath the armature small pieces of brick.
4. Bay formwork, it is necessary to leave it for a day to pour.And the next day you can start laying the wall.
5. To protect the room from drafts, the window should be a quarter.Its dimensions:. On each side by 5 cm and by the window sill - 2 cm Some builders do without quarter, but if you have a choice, it is better to do.

Once disassembled formwork, window and door lintel can build a brick that is placed in a row up to that height, which is needed.But to lay slabs for floors that give a greater load on the bridge, should be no earlier than a month from the pouring of concrete.