About Sip Construction
In 1986, for research purposes, a sample of the insulating layer made of polystyrene foam placed under the roll roofing in 1955 was taken. A commission of qualified specialists examined this sample and found that during 31 years of operation, no functional changes occurred in the polystyrene foam and this material still meets the requirements of the standards in force in Germany. The approved service life of a building built according to SIP technology is 40 years, the estimated service life of such a house is at least 80 years, and the normative service life before major repairs is 50 years. In Japan, the volume of construction using SIP technology increased significantly after a series of earthquakes, after which the reliability of panel structures was confirmed. Such popularity was due to the high rigidity of the structure and low weight. The super-strongly bonded multi-layer panels withstand an axial force equal to 10 tons for one 1.25 m wide panel and a transverse force equal to 2 tons for 1 square meter. m (for cottages, a resistance of 350 kg for the load of 1 sq. m is sufficient). In America and Canada, 5-story houses are built from similar structures. Therefore, despite the aforementioned good hardness characteristics of the panels, the construction additionally uses a reinforced frame with partial supports and an overlay is laid only on the supporting wooden beams. All these measures increase the reliability and durability of the building structure.