Faltsevy roofs represent designs from rolled and sheet galvanized steel (with protecting polymeric cover or without it) and also from non-ferrous metals. Such roofs differ in high tightness, thermal insulation and durability.
Device of faltsevy roof
There are 3 options of production of the basis for faltsevy roof. The first option is ladder with wedge-shaped steps at which the wide end leans on surrounding walls, and narrow – on rod average post. In the second case the separate steps will konsoleobrazno act from average monolithic column. At the same time the ladder is in the distance from walls, up to the central part of the room. In the third option the internal rod post is absent, and steps are closed up in curvilinear wall.
The folding technology is applied with roof bias more than 140. If the corner of bias is equal to value from 70 to 140, the solid base without fail is arranged and the double rabbet condensed by means of silicone sealant is used. If necessary parameters are not observed, on inside of metal sheets condensate is formed therefore corrosion process appears. When assembling it is necessary to use bolts, wire, klyammer and nails from galvanized steel. Thanks to it life cycle of fixture and integumentary covering will be identical.
Faltsevy roofs arrange from metal sheets by means of special hammers. In the beginning make pictures to which cover slopes of roof, wall razzhelob and trench, eaves overhangs of preparations of the necessary sizes and forms. Using tools and measuring tools, on steel sheets mark marks for parts, then cut them by means of scissors and connect in pictures to application of lying fold. At production of preparations for standing folds the side edges are bent. Now this technology is forced out by the rolled device of roof with use of the electric tool.
Production of faltsevy roof
A few years ago the faltsevy roof was made in the manual way that demanded from experts of high professionalism. Today the fold is made generally with use of the special equipment for faltsevy roof that significantly accelerates process of production of preparations and also reduces possibility of defects.
The order of rolling of faltsevy roof plays important role in ensuring functionality of design.
Machines for faltsevy roof allow to make qualitative seams at which the feature connector is the fold. At the same time the roof faltsevy membrane for high-quality production demands use of the special equipment as in this case the fold can have rather big length, depending on design and the sizes of roof. In addition, at production it is necessary to observe order of rolling of roof that will provide the made fold with all necessary characteristics. If the manufacturing techniques of faltsevy roof are not observed, it will cause additional expenses as insufficient tightness of folds, sagging of sheets and application of cheap coupling pieces will demand carrying out repair of roof.
At production of faltsevy roof the following types of metal can be used: galvanized steel, steel with polymeric covering, copper, aluminum, zinc-titanium.
When performing galvanized steel roof it is necessary to apply fixing and coupling pieces from galvanized steel as the term of their service influences the term of operation of product. The qualitative faltsevy roof at which knots are executed in strict accordance with technology of laying will serve many decades, without needing at the same time regular service.
Rules of mounting of faltsevy roof
When mounting faltsevy roof the fastening of metal through leaf is not provided, and therefore the roof as a result turns out without technology openings. Pictures connect with each other at the edges, and to furring they fasten by means of klyammer. It is convenient in case width of sheets from which it is necessary to collect picture is equal to 50-60 cm. The most widespread size of galvanized leaf is 1х2 m. It should be cut lengthways on 2 identical strips of 0.5х2 m in size. Sheets of steel need to be cut the guillotine or scissors, but not the Bulgarian. Further, the necessary number of sheets connect in picture by means of lying folds. Folds bend towards roof bias. From the sheet of steel klyammer - parts for fastening cut. This preparatory work is carried out on the earth. To reduce labor input and duration of process, it is possible to get flashing sheets in finished form of factory production. In this case locks will be the identical size and equal. Then on roof with step of 50 cm klyammer vertically beat. Pictures need to be lifted on roof, to bring the free end of klyammer to the side lock which they with each other unite and to roll up double standing rabbet. Only fixture and 2 hammers manually will be necessary for performance of this operation, and at the mechanized fixture instead of hammers the special zakatochny machine is used. Thanks to this technology of mounting it is possible to connect parts of faltsevy roof and also to attach them to roof.