Foil is used in the construction of baths and saunas and is one of the elements responsible for waterproofing. This is a simple and inexpensive coating that copes well with its tasks and retains heat inside the building 2-2.5 times longer, compared to other materials of this type. Therefore, in recent years, in the construction of baths and saunas, this type of insulation is gaining more and more popularity.

The advantages of foil in a roll of 1.25 m are:

1. Quite simple and reliable material, easy to use. It has good moisture-, vapor-, and water-resistant indicators.
2. Foil is recommended to be used in the so-called "pie" system. With the use of insulation based on basalt or glass wool.
3. The material is resistant to high temperatures and has high fire resistance, capable of withstanding up to 145 °C.

This type of foil is used by laying on fire-resistant heat-insulating material. Fasten with the help of metal staples. Temperature range of application -50 +145 °C. It has a high reflection coefficient (approximately 95-98%), thanks to the special polishing of the top layer.