Fast construction

Production technology of SIP (Structured Insulated Panel) has certain peculiarities. These panels consist of three layers: two durable OSB panels and a highly effective polystyrene foam plate that is pressed between them. This heat-insulating layer is superior to many other materials in terms of technical thermal performance. Polyurethane adhesives are used for bonding layers. OSB panels provide exceptional durability for panels, and foam polystyrene – excellent thermal and acoustic insulation properties.

The construction of the house up to the keys lasts 3-6 months: it includes foundation construction, installation of a building and roof, exterior decoration, installation of windows and doors, electrical installation works, installation of water supply, sewerage and heating systems, interior decoration.
The assembly of the building does not go down, therefore, the external and internal finishing can be started as soon as the main constructions are installed, which gives this technology a significant advantage over buildings of concrete, foam concrete or bricks, which need to be laid down from 6 months to a year.
The main building designs are made in the factory and are only being assembled on the site. The “wet” technology is not used in the assembly process, so the construction process is possible at any season.

silumos ir garso izoliacija


SIP panels (mm) Resistance of SIP panels R [m2K/W]
124 3213
174 4641
224 6070
274 7499
324 8927
374 10 356
424 11 784

Good thermal and sound insulation


A + class wall resistance 9.1

NOTE: The data provided is for guidance only, the actual parameters may vary slightly.

Reliable and easy construction of the house


Patikima ir lengva namo konstrukcijaIn 1986, for example, a sample of a foamed polystyrene added to the roller roof cover in 1955 was taken. The Commission of Experts examined this sample and found that within 31 years of operation there was no functional change in foam polystyrene and this material still met the requirements of the German standards.
The lifespan of a building constructed in accordance with SIP technology is 40 years, the estimated lifetime of such a house is at least 80 years, the standard lifetime till major repairs is 50 years. In Japan, the volumes of SIP-based construction has increased significantly after a series of earthquakes, which proved the reliability of panel structures. Such a popularity is due to the high structural hardness and low weight.
Strongly bonded multilayer boards withstand axial force equal to 10 tons per 1 inch for 1.25 meters wide plate and transverse force of 2 tons per sq. m. (the cottages have a capacity of 350 kg per 1 sq. m.). 5-storey houses are being built using similar constructions in America and Canada.
Therefore, in spite of the aforementioned good hardness characteristics of the panels, the reinforcement of the frame with partial rails is used in the building, and the supporting wooden overlays are installed only on the bearing wooden blanks.  All these measures increase the reliability and durability of the construction of the building.
SIP technology does not require a solid foundation for a house to build. Because the materials used are lightweight, the house does not stand, so it can be constructed on low-depth stripe or pole foundation. The advantages of low depth foundations are high durability and low cost.



ekologiskumasFoam polystyrene is a porous structure consisting of 98% of air and 2% of polystyrene. This material is neutral, hypoallergenic, does not expose any harmful elements to the person, therefore it is completely safe. The larger worldwide polystyrene foam production is intended for use in food packaging, containers, even single-use thermo containers used in extremely aggressive environments. Foam polystyrene is long-lasting, unbleached, and it’s a completely inappropriate medium for bacteria, mold and rodents to spread.
OSB (Oriented Strand Board) is a chip board made up of rectangular shapes of 0.6 mm thick and 180 mm long flat chips, which are placed in three layers in different directions. These layers, under high pressure and temperature, are pressed using wood preservatives and modern polysaccharide glue (MDI) without phenolic formaldehyde resin. This glue interact with hydrogen contained in wood and forms polyurethane, which in turn gives the plate a durability and hardness. The key to the choice of OSB boards is low concentration (less than 3%) of adhesives, the polymerization process of which ends one month after pressing, which makes the panels conform to the European hygiene class E0.
According to the basic design scheme, SIP technology buildings are classified as wooden houses. The environmental integrity of the building also contributes to the fact that metal structures are not used in supporting structures, while the supporting frame is made of wood.

Resistance to fire, rot, damage to insects and rodents


atsparumas ugnBurning foam polystyrene does not release toxic gases that are harmful to human health and splits into water and carbon dioxide, unlike mineral wool containing phenol, urethane, formaldehyde, glass, stone, slag compounds, resin condensation products. When plasterboard is finished with a wall finish, the fire resistance limit is 1 hour.
To ensure the fire safety of the house, it is important to take care of two main fire-causing factors: properly installing a furnace or fireplace chimney and qualified electrical installation work.
Foam polystyrene is not suitable for mice, as living organisms can not digest it.
Nests cannot be made from foam polystyrene granules, so, unlike mineral or glass wool, perfectly suited for this purpose, they are completely inappropriate for mice as a building material.
According to the panel mounting technology, SIP foam polystyrene is not in contact with the environment, it is always covered with wooden elements or OSB board.

There is another way:
1) Increased fire resistance.
2) Increased soundproofing properties.
Board composition:
wood – 60%, binder, sound absorbing and refractory materials (including concrete) – 40%

Economy and low costs


ekonomiskumas ir pigumasSIP technology does not require a solid foundation for a house to build. Because the materials used are lightweight, the house does not stand, so it can be constructed on low-depth stripe or pole foundation. The advantages of low depth foundations are high durability and low cost.
Houses from SIP structures are distinguished by the extremely level surface of walls and corners, which makes them very simple to finish.
The very design of the SIP building has a sufficient thermal resistance, so no additional heating of the walls of the house is required.
Houses of SIP structures distinguishes for 12 percent larger useful area than other houses of the same dimensions, since it saves the useful area due to thinner walls.