The tent contains 2 separate layers, which are placed one on top of the other on its roof or upper part.

Usually, the first layer has waterproofing, while the second is a layer that allows air passage and offers better ventilation in the tent.

The frame made of fiberglass is a common choice for the construction of camping tents. It is a lightweight and durable material, made from fiberglass fibers that are usually coated with polyester to protect them from water and moisture.

Fiberglass is flexible, allowing the frame to be lightweight and bendable to support the tent fabric.

The waterproofing of a tent indicates how much water the outer fabric can repel. It is measured in millimeters (mm) and refers to how many millimeters of vertical water column (and thus pressure) a square centimeter of fabric can withstand without being penetrated by water.

The higher the degree of waterproofing, the less breathable the fabric is, and thus the warmer the tent. Widely used waterproofing values range from 500mm to 10000mm. Theoretically, any fabric with waterproofing >1000mm is considered waterproof. For example, a summer tent may have waterproofing from 500 to 1500mm.