A sandwich panel is a type of industrial building insulation that are often used in large construction panels. They are named a sandwich panel' because there are typically two layers of one type of insulation, with one filler layer that rests in between the two outer layers, thus the sandwich' term. You'll often find sandwich panels used in the construction of offices, centres and modern buildings, but they can also be used as partitions and dividers as well. There are several different types of sandwich panels, as well as good times to use them and times not to use them.
Reasons for Sandwich Panels
Builders and designers opt for sandwich panels as part of their industrial building materials because they are extremely cost-effective, are very durable and stiff and are more lightweight compared to other types of insulation. This makes them easier for workers to handle, and easier to work with overall. Sandwich panels are used chiefly in several different construction types, including wet-layup, prepreg and infusion.
When it comes to the materials that make up a sandwich panel, the two outer layers are typically metallic, and consist of ACP, otherwise known as an aluminium composite panel. The outer layer can also be constructed of ACM, better known as aluminium composite material. The inner layer must be non-metallic. Common core materials include honeycomb, foam or balsa wood. It's also imperative that the inner layer be much thicker than the two outer layers.
When to Use Sandwich Panels
Builders should use sandwich panels when they need effective but lightweight insulationit's the thick, lightweight core of the panel that makes this possible. A sandwich can also act as a heat transfer system, or lack of one (for coolness), but this depends on the materials used. Sandwich panels, perfectly set, also prevent unwanted water from escaping, or getting into areas it should not be.
Disadvantages of Sandwich Panels
The main disadvantage with using sandwich materials is that the outer layers are prone to damage and wear and tear. Over time, ACP and ACM, when exposed to the elements, can falter. For this reason, some companies use laminate instead of sandwich for insulation. Overall, this potential of degradation is the only downside of using a sandwich panel.