Wood or LSTC: what do frame

In the late forties - early fifties of the last century frame house it was tested in our country, but it is not widespread. Last but not least this is due to the absence at the time of effective insulating materials. In recent years in the field of private cottage construction is booming frame houses. And among users FORUMHOUSE common frame structures in different versions.

About technology

Home to frame housing is considered Scandinavia - where the vast majority of low-rise buildings are made using this technology. It is based on the power, post-and-beam frame and enclosing structures (walls) - Multilayer: "Pie" includes insulation, protective membrane, envelope (board materials) and trim (Finish). Karkasniki recognized legkovozvodimyh and energy efficient designs, and by virtue of the installation features, the resource base and the construction speed - also the most accessible. It is also important that the relatively low weight of the structure and allows you to save on the foundation, making melkozaglublennuyu tape, bar or pole-rostverkovoe base. On assembly technology such houses are divided into two categories:

• Frame-panel (panel) - assembled from ready-made boards.
• Skeleton-frame - on the ground is going to frame out of long parts, then executed insulation and sheathing.

Build the house of the boards less demand among private owners, as their independent production is too complicated, and the order is ready housing sets not everyone can afford. In addition, the need for installation lifting equipment. The exception is the construction of CIP (structurally insulated panels) - between approximately-strand board (OSB) - insulation layer.

All panel elements adhered by molding, cutting is performed according to items selected in the same or an independent company design. Houses of CIP also includes a frame-panel category, although a full frame in this case is not as self-supporting panels. Unlike the large format shields, at the enterprise SIP cut into small constructional elements are interconnected directly at the construction site. The disadvantages of technology include the need for an effective ventilation system, which, however, is required all karkasnikam, higher compared to the framework frame, cost and polystyrene as a heater. Choose the home such as the speed of construction, and for the relative "durakostoykost" - when building the house hired forces less likely to retreat from technology.

spod1 (User FORUMHOUSE):

Toiled long agony of choice, Mount material on the Internet shoveled finally decided - will build of SIP. Even from one consideration that with this construction have hard workers physically fewer opportunities nakosyachit accidentally or unknowingly. At CIP also has pitfalls, but I think there is less dependent at least from a mere decency builders. Well, not as they are specifically of the foam panel to pick out.

Nevertheless it, the most in demand in the private sector it is frame-frame houses - assembly process is very real, accessible, even a novice without any special skills. Of course, provided that the pre-novice studies the theory of "smokes forum" and advance clarifies the controversial points, which is enough to create your own theme or use the experience of seasoned comrades. Framework frame is of two types - wood and metal.

Wooden

According to SP 31-105-2002 (Design and construction of single-family houses with a wooden frame) used dry softwood lumber not lower than second grade. All lumber is recommended to treat with antiseptic and fire retardant impregnation. The frame is assembled from vertical uprights and horizontal members (binding, jumper), and a step section is calculated from the height of the house and the expected load. But most often it is the rack section 100, 150 or 200 mm by 50 mm.

There are two basic technologies of building wooden karkasnikov - Finnish and Canadian. The first involves the load distribution between the walls and the spacing between the uprights 500 mm.

But the more popular later appeared, and therefore more technical, Canada - the burden is increased base (platform), the pitch between the uprights is 600 mm, which allows the stack of plate without the insulation vraspor trimming.

The forum of our portal a recognized expert in the field of wood frame housing is Roracotta (Vladimir)Professionally engaged in the construction of it is Canadian technology. He created the theme, which is very popular (already opened the eighth part). Here, he is responsible for the main, related to technology and its nuances questions. Key points on the basis of the responses VladimirI gathered in one cribKatyusya.

Roracotta (User FORUMHOUSE):

The entire structure is mounted on a rough nails - in the use of galvanized or other "clever" is not necessary. Useless and twisted or rough - with them more difficult to work, and their use is technically not justified. Screws are allowed, but for mounting plating, assembly of the framework regulations allowed it on the nails. This is logical - screws made of tempered metal, which is why they tend to burst. When the winds of small tremors and the like, the house always experiences an increased load, and nails are relatively soft and never cracked.

With regard to the assembly of the algorithm, it is the following (after foundation work and waterproofing), one-floor house:

• strapping assembly overlap lag flooring sub-floor (OSB, plywood).
• Assembling the frame walls.
• Assembling the ceiling slab lag.
• Assembling the roof system.
• Rough roof sheathing (OSB, plywood).
• Sheathing the assembled frame (OSB, plywood, DSP).
• Installation of windows and exterior doors.
• Laying of engineering networks (electricity, water, sewerage).
• Installing insulation (thickness depends on the structure and purpose of accommodation region, an average of 150-250 mm).

• Installation of the vapor barrier.
• Interior lining.

Roracotta

In practice, the faster and easier way to collect the wall on the floor and then pick them up. To do this, nothing but the measurements, thread spacing for straight lines, levels and manual neylera conveyers are required.

According to Vladimir, in our country it is the biggest problem in the construction of wooden karkasnikov - using wet lumber. It is cheaper, it is easier to buy, but the moisture trapped inside a wall of the cake, in most cases leads to the appearance of mold and mildew. But as the drying shrinkage and the rack frame will "twist" will appear skewed and finishing defects. Assembling the frame of dry wood will allow in the operation of regular to do without problems.

Metal

The frame also assembled from struts and horizontal members, but they, metal - LSTC (light steel thin-walled structure), the pipe channel. Problems of thermal bridges and condensation on metal in such karkasnikah solved sufficient (two-layer) insulation and protective membranes. LSTC - a factory technology: and the guide rack metal profile produced by cold pressing from structural steel (0.7-2 mm), treated hot-dip galvanized (18-40 micron thick coating) and perforated obtained teploprofil.

It is resistant to corrosion and has a lower, compared to the conventional, conductivity. frame members are cut on the project, customized size and spacing between the uprights, the frame assembly is held "screwdriver" way - all fixing holes are cut, parts labeled hardware really really tighten with a screwdriver, but is much more effective screwdriver.

The disadvantages of LSTC technology include solid domokomplekta cost of the finished, and the project should be ordered in the same place, which also will add zeros. Installation teams often provides the plant, but not always the level of these "pro" as expected. With a similar faced one of the members of the website - he chose LSTC technology for the superstructure of the second floor to the brick house.

gruzin2000 (FORUMHOUSE User):

At the factory, I ordered only the profile and the installation of the frame, but the workers have got profligate and assembly of first moving very slowly - I had to raise his voice and call the factory. Further, even worse - he revealed a flaw in the project (ordered at the factory), had to quickly order additional profile and wait for a few days.

At the end of installation gruzin2000 hired a specialist in quality control for acceptance, it became clear that the assembly carried out with a mass of flaws and irregularities. From basic: a smaller number of screws, one of the walls of "fall" horizontal attic floor practically profit - roof trusses held on "word of honor." Corrected all deficiencies the same team, after the unpleasant trials with the plant.

However, the technology selected participant portal content - warm, quiet, acceptable final cost, durability and environmental friendliness. Metal frame wood last longer, plus it was not necessary to use antiseptics and flame retardants. By the very big disadvantage can be attributed to the weak beam ceilings LSTC, gruzin2000 recommends instead use the I-beams. Read more about the construction process - in the forum thread. Well, the trouble with the installers and omissions in the design - it is not an indicator of the negative qualities of the technology, and the incompetence of the individual enterprise.

Apart from LSTC, metal frames are collected from different profiles, both independently and cutting the project bought from specialized companies. So did another member of the portal.

Vasilykar (User FORUMHOUSE):

At first I was inclined to LSTC, but after the frame cost estimations resulted in half a million, and the weight of six tons. Give half of the budget is only for the frame crossed out the whole point of saving, I have decided that it is easier and cheaper to order a frame made of metal simple. Looked pillars that ordered one, the quality satisfied, to order the manufacturer to make the frame according to the sketch.

Main pipe section of 100x100 mm, and window openings from the tube 100x50 mm, after every 600 mm - "gussets", the total weight - about 4.5 tons. Design, manufacture and assembly of the frame elements have cost much cheaper than LSTC. Details - Topic.

Even cheaper - to cook your own frame of metal tubes, but it is necessary equipment and skills, as well as the precise calculations that the elements will withstand the intended load.

Mishael761 (User FORUMHOUSE):

House built on metal, the material - a pipe 50x50 mm, 2 mm thickness, the entire second floor so made, and the attic storey terrace. Thermal bridges are excluded, double frame - inner power of 50x50 mm tubes and external, of 20x40 mm tubes, the full height of the house, under a common outer skin. The trick is that the inner frame has no access to the street, it is in the process of insulation foam is inside.

As a mechanical engineer, Mishael761 accurately calculate the load - rack with a pitch meter withstand far more than would weigh the whole structure. Opting for the metal framework is due to problems with the wood. Read more - in the subject of the author.

Mishael761

Most importantly, the tree, which is sold on bases - natural moisture, then there was a raw. What will happen to him next year, when the frame is dry? Such a number of neighbors, all this happened that did not even consider like for yourself.

Embodiments of a frame house - weight. Which to choose depends on your budget, and on the building parameters and region of residence - where the timber weight in gold, as the metal, on the other hand, is available. In any case, collected in compliance with the technology karkasnik serve not less than forty years, will cost cheaper analogues of masonry materials and of energy efficiency and the speed of erection of their will win.

As a rule, the topic of the construction of frame houses on their own steady fall in ratings and retain leadership. What other design interests of our users - in an article about non-standard building materials. As a plating frame houses some use DSP, Details of which - in our material. In the video - details of construction spacious karkasnika by one person.

Discuss the article and read other materials devoted to country life you can on the websiteFORUMHOUSE.

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