Polystyrene is known to be a lightweight and insulating material, and today it is widely used in various construction applications with insulation systems for walls, floors, and roofs.
Among these, one of the most effective uses is as a roof underlayment.
When used beneath the roof covering, the Termodeck polystyrene panels provide excellent thermal insulation even in summer, reducing heat penetration, keeping indoor spaces cooler, and lowering the need for air conditioning.
When combined with proper ventilation, they enhance the roof’s thermal inertia, preventing overheating during peak hours. In addition, they are lightweight, easy to install, and help protect the structure over time.
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