Ctropilnaya system gable roof

Gable roof - the form of the roof, which occurs more often.This is due to several factors.Firstly, it is easy to build - to cope with it even nonprofessionals.Secondly, it is highly reliable device.Thirdly, it is perfectly "adjusted" under any weather conditions.

Distinguish three different types of gable roof.First, symmetrical roof - it is the most simple in construction.Second: to break - is beneficial to those who want to use the maximum attic or protect against the vagaries of nature.Third: asymmetrical when the roof ridge is carried out not in the center of the house - beautiful and unique, but limits the use of the attic.

great importance in the construction of a gable roof truss has an angle of inclination which may be steep (if the house is built in an area with heavy rainfall) or gentle (if the house is being built in windy areas).But mostly the tilt angle ranges from 35 to 45 degrees - in this case, a saving construction materials, and home load is distributed more evenly.

basis for the roof is mauerlat - timber or timber, fixed around the perimeter of the top of the outer wall of the house.It is responsible for the distribution of load on the roof structure.

By mauerlat mounted system of rafters, which consists of vertical posts, rafters, beams, struts, angled struts and ridge beam, combined into one.

All these components can be made from both wood materials and made of iron or concrete.

Species rafters

Species roof gable roof systems depend on what kind of support base used for rafters.

Naslonnye rafters

Naslonnye rafters are possible if the house has a bearing wall penny.If not, use the pillars as an intermediate support.Along the edges of the rafters abut on the outer walls, in the center - on support.

Hanging rafters

In the case of installation of trusses span between supports ranges from six to six and a half meters.The edges of the rafters with mounted on exterior walls.

is also possible, and the option to install a mixed system of rafters, when used, and those other rafters.

Such rafters installation option helps save on materials and makes stronger the entire roof structure.

Speaking of materials.If the roof structure using a tree, all, without exception, beams and boards should not have knots or cracks!

calculations

reliable truss system depends on the correct preparation of the load calculations on her natural phenomena and its own weight.It is best to entrust this work to professionals.

But if you want the most common gable roof of the small size, you can try to calculate the load on their own.Only this should be done carefully and to check more than once.

1. It is necessary to decide what will be the degree of the angle of the roof - the steeper it is, the greater the amount of materials required for the construction of the roof.
2. is necessary to calculate the power load from snow and wind.
3. is necessary to calculate the total weight of the roof structure, including sheathing, roofing and insulation.
4. is necessary to determine how much material is required to develop rules and roof mounting.

Dimensions

1. Rafter leg.At six-meter timber height should be 50 mm, and width - 150 mm.If the timber is longer, then it must increase the width to 180 mm.Otherwise the timber may break from its own weight.
2. mauerlat.Beam 150 to 100 or 150 to 150.
3. ridge beam.Beam 100 × 150 or 150 × 50 board.

installation stroke

1 step.Securing mauerlat.

Before starting mounting mauerlat, you need to ensure waterproofing the walls, especially if the house is wooden.This can be done by means of special waterproof materials, mastics or conventional roofing.Stepping back from the outer and inner edges of the wall, but closer to the inner wall of stacked lumber - mauerlat future.From the outside, you need to do to mauerlat barrier - such as bricks.If the house is wooden, it happens that instead mauerlat used topmost beam.

mauerlat laid along the walls strictly on the level and observing equal intervals between the bars.Mount it to the wall can be done with anchor bolts that attach even during the installation of reinforced belt.Bolt bars pre-drilled holes.Given that everything should be done on a level, this is a very difficult task.

order not to mess around with anchor bolts, it is possible to do otherwise.Thoroughly mauerlat drill drill 12, put it right in the reinforced zone to a depth of 2 cm. Need to score valves 12 mm in diameter in the resulting hole is not less than 2 cm in depth, and the remaining ends of the bend.You can do it with a sledgehammer.

If mauerlat fastened to the masonry, then retreated two or three rows of bricks, put them in a wooden timber, to which is attached with staples pomomschyu mauerlat.

Step 2. Installation of rafters.

Part truss system, which will be in contact with brickwork or blocks, to be treated with special means to prevent rotting.

rafters are attached to mauerlat and secured by twisting of wire 6 mm.First set in place the rafters, which will be located at the edges of the roof.It is important not to forget to check them in parallel with a cord.Then you need to pull the same rope in the ridge and set intermediate rafter, making sure they are positioned straight.Near the chimney must be met right away, because the wooden beams rafters should be located not less than 13 cm from both sides.

Step 3: Install the ridge.

ridge ends are fixed on the gables home in the hole, horizontal which is carefully checked with a spirit level.Its ends are necessary to ensure waterproofing.Having laid the ridge beam, need to re-check its horizontality - if there is a deviation, placed under the ends lining.Then it is necessary to verify that the parallels between the ridge and cut the wall.

mount ridge is made with metal clips, bolts or corners.

Video - gable roof with his hands