The Steico multi renova moisture-variable vapor barrier is the ideal solution for renovation projects involving roofs, ceilings, and interior walls. Designed specifically for retrofit and modernization, this smart membrane adapts dynamically to changing humidity conditions inside the building envelope. Thanks to its integrated airtightness layer, it ensures consistent performance and long-lasting building health.
What makes it stand out is the variable sd-value ranging from 0.4 to 35 meters, which allows it to adapt its diffusion resistance depending on the surrounding moisture. In dry conditions, it prevents excessive vapor from entering the structure. In contrast, under high humidity, it allows moisture to escape more easily. This intelligent regulation minimizes the risk of mold formation and preserves the structural integrity of existing buildings.
The membrane features a robust three-layer construction that is tear-resistant, flexible, and easy to install, even in complex renovation scenarios. It works particularly well in combination with blow-in insulation materials like Steicozell. For extra reliability, it can be secured using Steico hardboard strips.
Steico multi renova is designed for interior use only and supports installation on both the ridge and valley sides of the roof. It integrates seamlessly into the Steico natural fiber insulation system, offering a complete, eco-friendly solution for sustainable building renovation.
Technical details:
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Moisture-variable sd-value: 0.4 to 35 m
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Weight: 100 g/m²
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Structure: 3-ply, strong and flexible
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Fire rating: Class E (DIN EN 13501-1)
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Dimensions: 1.5 m x 50 m = 75 m² per roll
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Packaging: 20 rolls per pallet
This advanced membrane is a must-have for anyone seeking a sustainable renovation approach that balances building physics, energy efficiency, and ease of application. For installation details and documentation, visit the official Steico website. Other membranes could be found in our online shop too.
