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XPS Extruded Polystyrene

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Extruded Polystyrene (XPS) is a durable, water-resistant insulator with high mechanical performance and does not rot. Placed on the waterproofing (inverted roof), in addition to insulating, it protects the waterproof sheet and improves its durability.

Extruded polystyrene in its forming process produces a closed bubble structure, which makes it the only thermal insulator capable of getting wet without losing its properties.

Due to its high mechanical resistance and water tolerance, it is a material that has found a multitude of applications in construction. It is widely used as insulation in floors, especially in cold rooms, and also in façade panels; but above all, it has allowed the appearance of a new construction solution: the inverted roof. In this type of roof, the thermal insulation is placed on top of the waterproofing, an arrangement that extends the useful life of the roof, since the waterproofing does not suffer the stresses of the weather or the sudden changes in temperature that end up deteriorating it over time.

Advantages of Extruded Polystyrene

Extruded polystyrene acts as thermal insulation by reducing the thermal oscillation of day and night, which leads to a reduction in fatigue to which materials are subjected due to expansions and contractions, especially waterproofing. In addition, the non-adhesion and dry placement of the insulation layers on the waterproof film facilitates access to it for repair and maintenance work.

They can be finished as walkable or non-passable roofs, either by pedestrians or by road traffic, or as landscaped roofs. Naturally, when the insulation is directly exposed to external aggressions (thermal oscillation, rain, weight, etc,...) it must be carefully selected.