In the field of various methods of housing construction, the technology of using frames is recognized as the most energy efficient to date. With its help, it is possible to save up to 30% of the financial costs of heating, when compared with similar buildings made of concrete or brick. The essence of the frame house insulation, as the most important stage of construction, is to fill the entire post-and-beam structure with heat-insulating materials, despite the fact that the latter will not lose its strength.
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In the countries of Scandinavia and North America, about 70% of low-rise buildings are built using frame technology. In Japan and the UK (where there is a shortage of building space), they even learned how to build buildings using this technology of 9 floors and above. In modern Russia, the Code of Rules 31-105 of 2002 is in force, which regulates such construction.
By itself, the supporting frame is a power frame made of well-dried timber or boards. In order to protect against fire and decay, it is treated with special impregnations. For thermal insulation, special heat-insulating mats / plates are used, which are mounted in the spacer between the racks, and with the help of intermediate jumpers they are held from below. In order to prevent the formation of "cold bridges", it is necessary to achieve a snug fit of the plates to the frame elements, as well as to additionally seal the corners. To counteract moisture, which will reduce the thermal insulation properties of most of these materials, vapor barrier is used.
It is possible to determine the required thickness of the insulation using technological calculations, which will take into account the conditions, the design specifics of the future structure and the technical parameters of the material itself. As a rule, the height of the section of the racks is standardly taken as 150 millimeters. If this indicator becomes insufficient, then an additional layer of thermal insulation is installed outside the wall.
In the end, the entire structure is sheathed with protective and decorative plates, for which they are used:
The main difference between a frame structure is that there are no main walls in its design, therefore, all thermal protection functions are assigned to enclosing structures consisting of several layers. In order to properly use the material for thermal insulation, it is necessary that it meets the following requirements:
At the same time, it is forbidden to use products that have an irregular geometric shape or damaged corners. Also, do not use materials that have expired. This is especially true for mineral wool slabs, because they are most prone to changing their shape under pressure and are characterized by increased moisture absorption.
The construction market today can provide many types of heat insulators that differ in their technical characteristics, among which the following are especially popular:
Each of the listed materials performs an insulating function with its own specifics, so it is necessary to have a general idea of such features in order not to get into a situation where improper use will result in a decrease in thermal protection, the onset of putrefactive formations and other defects.
Rolls based on a fibrous structure, mats and slabs are the best insulation for a frame-based house. Such thermal insulation is in many ways similar to wood in terms of vapor permeability, therefore, when it is used, the threat to wooden elements is minimal. The weight of mineral wool is very small, it perfectly passes steam, is resistant to the appearance of rodents / insects, and is fire resistant. This material is considered to be of very high quality and does not emit harmful substances, which means absolute safety for human health. The insulation itself is made from glass, quartz or basalt fibers, which are formed by heating and then drawing the appropriate mass in an intense air environment. Then a water repellent is added to the composition, the material is pressed and cut to the desired size - and now, the heat insulator is ready for installation.
For laying between frame racks, mineral wool slabs with a density of 60 kilograms per square meter are used (they can be marked from PP 60 to 80 in increments of 10). They are not characterized by shrinkage and jamming under their own weight.
Slabs marked PM 40 or 50 (or roll insulation) are less dense and are intended for laying on inclined / horizontal surfaces that will not be subjected to load.Such surfaces can be floor logs, inter-rafter space, ceilings. Mineral wool with low density is used as sound insulation.
For example, for a house in central Russia, the thickness of the required thermal insulation will be 200-300 millimeters. In this case, the cladding option will be taken into account, which will contribute to counteracting the heat transfer of the walls.
At the same time, loose fibrous insulation has a significant disadvantage - a high degree of water absorption. When absorbing water, the material can lose up to 50% of its thermal insulation properties. In order to prevent moisture, it is necessary to protect the inner surface with a vapor barrier membrane, and outside - with a waterproofing film.
This category of insulation is made from foamed polymers and can be represented by the following polystyrene foams:
It is worth noting that extruded foam is more durable, but its price is higher. Flame retardants are included in its structure during production to help prevent the spread of fire.
Polymer insulation is moisture resistant, biologically inert, and resistant to chemicals (with the exception of organic solvents). The main area of \u200b\u200buse is the insulation of blind areas, basement and foundations. In addition, it is the best insulation on the ground.
IMPORTANT! Building codes allow the use of polystyrene foam to fill the internal frames in one-story single-family houses. But in residential buildings, the number of storeys above 3 floors, the use of foam is strictly prohibited!
Due to the fact that frame buildings belong to the third group of fire resistance, it is recommended to use them in construction as an outer layer, followed by sheathing with non-combustible bases. When installing floors with their help, it is required to cover the insulation with a cement screed, with a thickness of at least 30 millimeters.
It should be noted that polystyrene foam has a zero vapor permeability index. When it is installed close to the frame parts, the steam inside the element will be, as it were, sealed, which can lead to the beginning of wood decay. Therefore, it is necessary during construction to implement a set of measures aimed at increasing the level of air circulation inside the wall. Another disadvantage of polystyrene can be called its attractiveness from rodents. Although they do not eat it, they like to gnaw holes and manholes in it. To prevent such a situation, it is necessary to sheathe the bottom of the walls with a steel fine-mesh mesh, install steel chippers on the base, and carefully seal all the cracks.
Polyurethane foam is produced in the form of a sprayed mass, rolls or plates and is a foamed polymer filled with gas, which hardens during the chemical reaction of the elements - isocyanite and polyol. It has the lowest heat transfer among all insulating materials, good adhesion to any surfaces, but is extremely “afraid” of sunlight, for which it needs additional protection.
During the spraying of polyurethane foam, a seamless coating is created, while even small gaps are filled with insulating material. Neither rolled nor tiled materials can give a similar effect. For central Russia, for normal heat supply, a layer of only 61 millimeters will suffice. If the coating passes over cold rooms (basements, attics) - 81 millimeters. Provide heat to the attic - 93 millimeters.
For uniform spraying, special equipment must be used. The elements in it are kneaded in a dispenser and splashed under pressure onto the surface to be treated. At the same time, carbon dioxide is released. The mass of the foam substance increases 100 times in volume and quickly fills all the free space. Polyurethane foam is moderately prone to burning, so it will be useful to cover it with a non-combustible material.
This material is a fibrous mass, gray in color, and is created from recycled cellulose interspersed with flame retardants and antiseptics. Thermal insulation with its help can be both sprayed and bulk. In addition, it is characterized by low thermal conductivity, excellent sound insulation, resistance to putrefactive processes, and absorbs moisture moderately. After absorbing moisture, it dries quickly enough, as well as restores its properties. The material attracts little rodents, because during production it is impregnated with boric acid. The second name "ecowool" was given to the insulation due to the economical production process, because it uses only recycled materials. The cost of this insulator is very budgetary, which makes it popular for frame technologies.
When sprayed manually, ecowool should be laid out on the surface and be covered in the cavity of partitions and walls. Such an operation is laborious, therefore this type of insulator is used only on small structures. In turn, being mixed with an adhesive solution or moistened, ecowool acquires a high degree of adhesion to the surface, perfectly capable of filling voids in all places. For leveling purposes, electric roller scissors should be used. Drying lasts 12 hours, after which it is possible to finish.
Backfill insulators most often insulate horizontal surfaces - floors on the ground, floor logs and ceilings. For walls, roofs or partitions, it is not used due to laying difficulties.
Filling heaters can be:
The manufacturing process of this insulation consists in the fact that mineral raw materials swell in a high temperature furnace, and special granules with a porous structure are created from it. Then, through heat treatment, the bulk density is reduced, while improving the thermal insulation properties.
Advantages of backfill materials:
Their main disadvantage can be called a relatively large mass and difficulties in installation.In addition, before laying, the base should not have cracks and crevices, and the process will need to be completed through additional layer-by-layer tamping. The waterproofing procedure is also mandatory.
Their name stands for "stone fiber" and they are used to insulate floors and roofs, as well as to soundproof ceilings and partitions. They are made from "wood wool" - long and narrow shavings with the addition of liquid glass and Portland cement. The raw material is mineralized in the process, mixing with a viscous mass, after which slabs of different thicknesses and sizes are created.
This insulator combines the advantages of cement and wood:
As a standard, in frame construction, this material is used with the F300 marking, which, in addition to excellent mechanical strength, also has good thermal insulation characteristics. For roof work, reinforced blocks with reinforced wooden slats are specially manufactured to withstand increased loads. Due to the fire resistance of the insulator, waterproofing can be directly mounted on it by means of high temperatures. The slabs can be produced in grey, white or color schemes, with colored samples being used mainly in decorative finishes. When used on frontal cladding, protective plastering will be required.
A similar composition is used for the insulation of utility buildings and other auxiliary non-residential premises. The method is quite old, but has not lost its relevance.
The mixture can be prepared independently in the following steps:
The warming process will look like this:
The considered insulation option is environmentally friendly, will allow the walls to “breathe”, and does not emit harmful substances. Due to the fact that clay is able to quickly soak, such insulation will require waterproofing. Also, which are part of the sawdust, they can smolder for a long time, so protection from open fire will be required.
The technology of frame construction must be observed in a very strict manner so that in a year or two you do not have to rip off the finish and replace the insulating material, and at the same time all the protective films. Below are the most common mistakes made that can lead to costly repairs:
This type of insulator was created on the basis of crushed stone of volcanic rock, and it is distinguished by excellent waterproofing properties. It also has a long service life. If you purchase such material in plates, then they will successfully resist the formation of "cold bridges" and weakly succumb to high temperatures. Best suited for private housing construction (specifically, for low-rise buildings). At the same time, it is able to create a significant sound barrier. Price - 370 rubles.
An excellent base for warming non-residential premises for service purposes, for example, baths and saunas. The plates themselves are provided with reliable protection against getting wet by means of aluminum foil. At the same time, this material (foil) will be a reliable barrier to rodents and insects. Also guaranteed to prevent the spread of harmful bacteria, mold and mildew. Works great with siding. Price - 770 rubles.
An excellent example, made on the basis of basalt. The manufacturer claims that with the help of his product it is quite possible to achieve savings of 64% on heating costs.It has been established by practice that the sample has good sound-proofing properties and is perfectly adapted to retaining heat. Density and fire resistance are also beyond doubt. Price - 870 rubles.
This sprayed sample is specially focused on the insulation and soundproofing of attics, mansards, verandas, loggias and building facades. The substance has increased adhesive properties to all building surfaces (stone, brick, wood, concrete). Over time, it is weakly subject to compression and destruction, and is able to successfully withstand ultraviolet rays. It is an extremely reliable heater. Price - 590 rubles.
This insulation can be used without a special gun, you just need to wind the applicator tube that comes with the kit. The composition is used for the purposes of thermal insulation of industrial and residential facilities. It fits perfectly on porous materials, as well as on brick or wood. Price - 630 rubles.
The manufacturer positions this insulation as an excellent tool for treating cold surfaces. It also claims excellent adhesion to all types of building materials. Able to quickly and reliably eliminate thermal bridges. Easy to use, has a reasonable price. The cost is 800 rubles.
This material is characterized by reliability and durability, has excellent functional properties. It is used to strengthen both external walls and internal partitions. The insulation is supplied in the form of rectangular plates. Requires protection after installation by finishing - plastering. Produced in Russia. Price - 550 rubles.
A bright representative of a high-quality line of thermal insulation materials, with extended functionality. With the help of this insulator, you can protect any surface, even vertical, even horizontal, even inclined. The production base is cotton wool on a basalt basis. Price - 670 rubles.
Flaws:
Warming a house using frame technology is a whole building system consisting of many materials, and each of which plays an important role. The use of proper heat insulators, subject to the correct installation technique, will provide favorable conditions for people to live, increase the energy efficiency of the premises and create all conditions for the long-term operation of building structures.