Exterior wall cladding is one of the final stages in the construction of a frame house. And here the choice of material is of great importance: the microclimate in the premises, the mechanical strength of the walls, the reliability of protection from moisture and cold depend on it. In addition, cladding serves as the basis for finishing materials, and in some cases acts as a topcoat and is responsible for the aesthetic appearance of the building.
How to sheathe the frame house from the outside
Sheathing gives the frame of the building a certain rigidity and takes on part of the load. This means that one of the main criteria is the mechanical strength of the material in bending and compression, the absence of shrinkage during operation.
Walls should retain their original shape for years, regardless of the surrounding conditions. In addition, the cladding must be resistant to moisture, sudden temperature changes, and microorganisms.
Sheathing gives the structure additional strength
Next, you need to pay attention to the ease of installation of the material and its pliability during processing. If you plan to sew with your own hands, this aspect is of great importance, because it depends on it how much time and effort it takes to work. The material should be easy to cut and drill, but at the same time maintain density on the sections, not crumble, not crack.
And, of course, it must be durable so that you don't have to change the skin every 10-15 years.
An example of cladding a frame house outside
There are several types of materials , to a greater or lesser extent meeting the specified requirements: moisture-resistant plywood, DSP, OSB, edged board, fiberboard. They have similar characteristics and are widely used in frame construction. To make your choice, you should familiarize yourself in more detail with the main properties and features of each of them.
Application of OSB in frame construction
OSB panels rightfully belong to the most demanded materials for the arrangement of frame structures.
They consist of layers of glued wood shavings and chips, and in the outer layers the fibers are located longitudinally, inside - transversely. For bonding the chips, synthetic resins and wax are used, which make the finished boards water-repellent.
Standard production provides for the release of these boards in several categories:
In terms of quality-functionality-price ratio, OSB-3 is the most optimal, and this material It is widely used in private construction for wall cladding, production of load-bearing partitions, reusable formwork when pouring concrete structures. Plates lend themselves well to grinding, cutting, drilling, and tightly hold nails even at a distance of 6 mm from the edge.
Such cladding can simultaneously serve as a decorative coating for walls, it is enough just to treat it with a waterproof varnish or paint it.
External finishing of the frame house with OSB boards
The advantages of OSB:
OSB (OSB) plate
|Density||575-645 kg / m3|
|Dimensions||1220x2440, 1250x2500, 1250x2800mm|
|Weight||15-40 kg| OSB (oriented strand board)
This material is a compressed mass of M500 cement and shavings (usually softwood). The standard board has three layers: the outer one is made of fine chips, the inner one is made of coarse.
In addition to the main components, the composition contains hydration additives, the mass fraction of which does not exceed 3%. DSP is characterized by resistance to moisture, high strength, long service life. Plates are widely used in private construction, industrial, for work indoors and outdoors.
Sheathing a house with DSP boards
When sheathing the frame, such plates serve as an excellent basis for cladding, decorative plaster, painting, since they form ideally flat and smooth surface. The material undergoes 50 cycles of complete freezing and thawing without losing its characteristics; later, the strength of the slabs decreases by about 10%.
Among wood-board materials, CBPB is the leader in environmental and technical indicators.
House lined with cement-bonded particle board (CSP)
Wall cladding with cement-bonded particle board
|Dimensions||1200x2700, 1200x3200 mm|
|Density||1300 kg / m3|
|Thermal conductivity||0.26 W / (m K)|
The material is sheets of compressed shavings, usually coniferous.
In the process of pressing, the raw materials are highly heated, which makes it possible to achieve maximum density without the use of adhesives. Thanks to this, fiberboard belongs to environmentally friendly materials, and therefore is suitable for outdoor use and for decoration of residential premises. The shavings contain natural resin, which acts as an antiseptic and protects the boards from mold.
In terms of strength, fiberboard is noticeably inferior to natural lining and OSB, but surpasses them in terms of heat and sound insulation properties.
Windproof board "Beltermo"
Insulating boards of several well-known brands are currently presented on the construction market of fiberboard, the most popular of which are " Beltermo "and" Izoplat ".
For cladding a frame house, plates with a thickness of at least 25 mm are used, thinner sheets are used indoors.
ISOPLAAT insulation and wind protection boards
Sheathing with ISOPLAAT plates and wooden clapboard
|Board thickness||12-40 mm|
|Sizes||600х1800, 1200х2700, 580х1250 mm|
|Density||110-700 kg / m3|
|Thermal conductivity||0.037 W / m * K|
|Board weight||9-18 kg| Fibreboard (Fibreboard)
Gypsum fiber sheet moisture resistant
GVL consists of compressed gypsum reinforced with cellulose fibers.
Due to its high strength, the material is suitable for creating load-bearing surfaces, therefore it is widely used in frame construction. It differs from drywall in greater density, uniformity, and the absence of a cardboard shell. In terms of frost resistance, soundproofing properties, as well as resistance to moisture and combustion, gypsum plasterboard is also several times higher than gypsum boards.
Installation of GVL is made by frame and frameless method. For external wall cladding, the first option is used, where the sheets are fastened to the bearing posts with self-tapping screws.
The material is easy to cut and drill, and, despite its heavy weight, it is quite convenient to install. Such cladding serves as an excellent basis for tiling and decorative plastering.
Sheathing with GVL sheets
|Density||1250 kg / m3|
|Sheet weight|| 17. |
|Thermal conductivity||0.22-0.36 W / m * K|
|Dimensions||1000x1500, 1200x2500 mm|
Exterior decoration of the frame house with plywood sheets
Plywood is made by gluing thin veneer sheets of various types of wood (most often coniferous and birch). The sheets are laid perpendicular to each other with respect to the location of the fibers, which increases the mechanical strength of the material and increases the resistance to deformation. For the outer cladding of frame walls, plywood of increased moisture resistance is used, which is marked with FSF.
The thickness of the sheets should be from 9-10 mm; thinner material will not provide the required rigidity to the frame.
The use of plywood in frame construction
The grade of plywood is of no particular importance for cladding, and you can use the cheapest unpolished grade 4 boards /4.
Plywood grades and markings
From the outside, all defects will be hidden under the hinged facade, so there is no point in overpaying. Subject to the sheathing technology, the plywood coating will serve for years without losing its qualities.
|Number of layers||3-21|
|Density||550-700 kg / m3|
|Humidity||up to 10%|
|Thermal conductivity||0.09-0.24 W (mK)|
|Dimensions||1220х1220, 1220х1525, 1500х3000, 1250х2500 mm| Plywood
Facade cladding with an inch board
The use of edged boards for cladding is the most economical option. Wood is an environmentally friendly material, affordable, easy to install.
Boards can be stuffed not only horizontally, but also at an angle of 45-60 degrees. To save material, the boards can be fastened in increments of up to 30 cm, although more often the sheathing is made solid. This design perfectly strengthens the frame and is a ready-made base for a ventilated facade.
Sheathing of a frame house with a board horizontally
In order for the sheathing to be reliable, the boards are chosen with a thickness of at least 25 mm, you can grooved, for greater docking density. Do not use raw lumber: during the drying process, the wood will begin to warp, deformations of the finish coating may appear.
Construction of a frame house
Installation of panels on a finished frame is carried out using the same technology, regardless of the type of material.
Simultaneously with the cladding, vapor barrier and wall insulation are performed, and the finishing can be done immediately after the completion of construction or after some time. Consider the installation technology using the example of frame cladding with OSB plates.
Sheathing can be done in two ways - with and without lathing. In the first case, the vapor barrier layer is located between the frame and OSB, in the second - on top of the skin. The lathing option is used in cases where OSB acts as the basis for plastering, painting or tiling, the second method is used, as a rule, when arranging a ventilated facade.
Otherwise, there are no significant differences.
Step 1 . Plating starts from the very corner. The first OSB sheet is applied to the frame posts so that the lower edge completely overlaps the lower trim of the house. Be sure to control the horizontal level.
The slab itself is also recommended to be placed horizontally and not vertically - this provides the structure with greater rigidity. For fastening the material, use galvanized self-tapping screws with a length of at least 50 mm. It is necessary to retreat from the edge of the OSB about 10 mm, the step of fastening along the perimeter of the sheet is 15 cm, in the center - 30 cm.
Spacing of nails
Tip. To firmly fix the boards, the length of the hardware must exceed the OSB thickness by at least 2.
5 times. If the self-tapping screw enters the frame beam by less than 30 mm, under the influence of loads, the sheathing will begin to detach from the supporting base.
Step 2. The next plate is installed next to the first, leaving a gap of 2-3 mm for thermal expansion. In the same way, they set the horizontal in level, screw the trim to the frame guides.
The joints of the slabs must necessarily fall in the middle of the rack, only in this case the fastening will be as reliable as possible. The remaining plates are fixed in a circle, leaving open areas for doorways.
Vertical and horizontal arrangement of OSB sheets on the frame of the house
Step 3. The second row of cladding must be installed with bandaging of vertical seams. The same gap of 2-3 mm is observed between the lower and upper plates.
When covering openings, use whole sheets, not cuttings - the fewer joints, the more airtight the covering. Cutouts in the sheets are made with a jigsaw or a circular saw, having made preliminary markings with millimeter accuracy. The edges of the cuts after installing the slab should ideally match the lines of the openings.
Step 4. The upper slabs are installed so as to completely cover the upper strapping.
If the house has two floors, the interfloor piping should be closed by the middle of the slab - in no case should the OSB be joined on this line.
Fastening sheets under the rafters
Start roof sheathing with ondulin over the battens and membrane
Completed roof finishing
Continued installation of OSB panels on the facade
Gallery 1. An example of the construction of a one-story frame house with OSB finishing
Gallery 2. OSB cladding of a two-story frame house. Example
After completing the installation, a windproof membrane is attached over the casing. Its canvases are stretched horizontally and fixed with staple staples to the OSB. At the joints, the film is overlapped and glued with tape. The material should not be pulled too tight, but there should be no sagging.
Next, the battens of the lathing are stuffed for finishing in increments of 50-60 cm. The battens must first be treated with a protective compound and dried. After that, you can proceed with the installation of siding, lining or other decorative coating for the house.
Note! If you plan to paint the facade from OSB, then the membrane, respectively, is mounted only on the inside of the house.
With this method of cladding, the insulation is placed from the inside of the walls into the cells of the frame and covered with a vapor barrier film.
On top of the vapor barrier, slabs for interior decoration are sewn, for example, drywall or the same OSB.
Thermal insulation and vapor barrier from the inside
Wall cladding inside with plasterboard
Exterior decoration. Painting
Frame house with OSB sheathing several seasons after construction
An example of the construction of a ventilation facade on top of OSB cladding
Posted By: Work Style |10, Nov 2020
Posted By: Work Style |10, Nov 2020
Posted By: Work Style |02, Nov 2020
Posted By: Work Style |08, Nov 2020
Posted By: Work Style |02, Nov 2020