Installation errors of sandwich panels and their consequences

1848
Date: October 2022

Installation errors of sandwich panels and their consequences

The accuracy and strength of fastening the roof is ensured by locks and installation technology. And the main problem in this case is a successful or unsuccessful combination. Therefore, manufacturers are constantly working on improving such locks. After all, the strength of the joint of the panels on the roof and the absence of gaps, and the tightness depends on this. For a roof, these are critical indicators. Any unsuccessful combination can be a conductor and a cold bridge for the humidity of the rain. If possible, the accessories of the built-in panels should be connected immediately. If there is no such possibility: it is necessary to take precautions against moisture, the exposed parts of the panel must be covered. In order not to have problems, especially due to the high water absorption capacity of the stone wool panel, the panels must be protected against moisture as long as the Assembly continues.

When assembling accessories, 2 cm of additional Mastic should be applied from the inside to prevent air and water from entering. In cold room panels, a Mastic gap of 2 mm should be left at the panel joints, and it should not be forgotten that these places must be insulated with mastic from the inside and outside.

In bad weather and often changing humidity and air temperature, leaks are observed on a poorly laid roof made of sandwich panels. The primer will also soon peel off if a foam sandwich is used and the moisture content increases in the middle layer. If the insulation is made of stone wool, then the connection between the vertically oriented fibers is destroyed due to moisture.

In addition, one should not forget about the influence of extraneous factors, for example, a fall of a tree or branch, a blow, etc. These factors can cause serious damage to the durability of the compound and the surface.

If you strictly follow all the installation rules during the processing of sandwich panels, then it is possible to avoid all listed influences without damage or with a slight impact.