Sandwich panels are gaining increasing popularity in the construction of prefabricated commercial and residential premises. It is most reliable to fasten them to a metal frame. This process is not complicated, and an unprofessional builder can cope with the task. But nevertheless, it is necessary to take into account a number of nuances, on which the quality of the design and the service life depend.
Before starting work, you need to prepare all the tools, as well as consumables: screws, dowels, anchors, screws, mounting foam, sealants, corners. You may also need a jigsaw, saw, drill, screwdriver, hacksaw and level.
When installing, it is important to follow certain rules:
- Workers must understand the intricacies of technology;
- Unloading, loading and moving the sandwich panels is necessary only with the use of safety tapes or grips;
- Mechanical impact on the panel is not allowed to avoid deformation;
- It is important to pay attention to the quality of the insulation layer, since if improperly stored, it can swell and lose its heat-insulating properties;
- It is important not to use a grinder, grinder or weld for processing. They heat the surface of the panels, which violates the anti-corrosion layer, and the panel begins to break down;
- The panels are attached to the frame using anchor bolts or self-tapping screws, necessarily with a gasket that protects the panel at the drilling sites from the influence of harmful environmental factors;
- It is possible to wash off dirt from the panels only with simple soapy water; chemical compounds can damage the coating;
- On the front side of the panels you can not hit hard, otherwise cracks may appear;
- In long breaks between the operation of the panel must be covered with a film from moisture.
It is also necessary to first verify the reliability of the supporting frame, clean it of dirt and cover it with anti-corrosion compounds. The strength of the entire structure directly depends on which fasteners are selected and how they are used:
- Anchors or dowels must enter the panel at an angle of 90 degrees;
- Fasteners should be located at a distance of 5-7.5 cm from the edge of the panel;
- Fasteners should be pressed as tightly as possible to the panel, but not to allow its deformation;
- It is necessary to calculate how many fixing screws or anchors are needed per panel, based on its weight, size and location. The height of the building and the average wind speed in the region are also taken into account.
With proper installation of the sandwich panels, a reliable and durable design will be obtained that will last up to 50 years.