Alchimica’s Inverted Roof System offers a fully integrated waterproofing and thermal insulation solution, enhancing both the energy performance and long-term durability of flat roof structures.

In this build-up, the waterproofing membrane is applied directly to the structural deck, with extruded polystyrene (XPS) insulation placed above it. This approach protects the waterproofing layer from mechanical damage, thermal stress and UV exposure, significantly extending the lifespan of the entire roof system.

Key benefits include:

• Improved energy efficiency through high-performance thermal insulation.
• Long-term waterproofing protection, shielded from environmental stressors.
• Use of XPS insulation ensures excellent compressive strength, moisture resistance and thermal performance.
• Ideal for roofs with heavy foot traffic, ballast, or green roof systems.

This system is particularly suited to commercial and public buildings where durability, performance and insulation are critical.

Alchimica’s inverted roof solution provides a robust, impenetrable envelope, combining functionality with reliability for demanding environments.