Common Mistakes When Purchasing Sandwich Panels for Industrial Use

There are many types of sandwich panels, and common mistakes when choosing industrial sandwich panels include:

1. Focusing solely on price and selecting panels incompatible with the core material.

EPS sandwich panels are the cheapest and generally only used in ordinary factories. PU/PIR sandwich panels are chosen for cold storage, while rock wool sandwich panels are chosen for large logistics warehouses.

2.Confusing roofing and wall panels.

Wall panels cannot be used directly for roofing. Roofing requires high-strength roofing panels with corrugated peaks to withstand strong winds and rain/snow.

3.Ignoring the density of the core material.

Generally, EPS density ranges from 10kg/m³ to 20kg/m³, which can be selected based on different insulation requirements;

Rock wool density ranges from 80kg/m³ to 140kg/m³. It is generally not recommended to use less than 90kg/m³ for walls and less than 100kg/m³ for roofs.

4.     Ignoring the thickness requirements of the sandwich panel steel plate

The thickness of the top and bottom plates of the sandwich panel can be determined according to the strength requirements of the building. Common thicknesses are 0.4mm to 0.8mm.

5.Ignoring the zinc coating thickness requirements of the sandwich panel

Generally, the thicker the zinc coating, the better the corrosion resistance. Industrial buildings typically require AZ100 or AZ150.

6.Ignoring the color coating requirements of the sandwich panel steel plate

PE coating can be used in ordinary environments, while PVDF coating can be used in coastal or highly corrosive environments.

7.Incorrect calculation of sandwich panel length, leading to excessive splicing

It is recommended to provide CAD drawings. Our technical engineers will calculate the accurate number and length of panels to avoid errors.

8.Ignoring panel load-bearing capacity and span

The panel thickness needs to be calculated based on the purlin spacing, load, and wind force of the industrial building to avoid placing orders blindly.