The Steico fix 2.0 insulation wedge for windows sills has been specially designed to ensure airtight and thermal bridge-free connections beneath window sills. Thanks to its robust hydrophobic wood fiber composition, it provides reliable protection against driving rain and drifting snow—especially important in modern timber construction and solid masonry buildings.
Where window sills meet the façade, this smart insulation wedge creates a second water-draining layer, effectively preventing moisture ingress. When combined with other components of the Steico sealing system—such as multi fill joint sealant and high-performance tapes like Tape F 20/40 or Tape black—it forms a durable, flexible, and long-lasting sealing solution.
Moreover, the wedge doesn’t just keep water out. Steico fix 2.0 insulation wedge for window sills also reduces thermal bridging, improving the building’s overall energy efficiency. You can use it with window sills made of aluminum, natural stone, or granite, making it suitable for both new construction and renovation projects.
✅ Key Benefits:
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Creates a second drainage layer under the sill to prevent moisture ingress
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Ensures thermal bridge-free installation for better energy performance
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Compatible with a wide range of window sill materials
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Forms a complete system when used with Steico tapes and sealants
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Easy and standards-compliant installation, guided by a step-by-step manual
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Weather-resistant for up to 4 weeks before final covering
Additionally, it features a pre-mounted plastic drip edge profile and a glass fiber mesh layer, both of which simplify installation while ensuring long-term performance.
📐 Technical Specifications:
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Length: 1.35 m
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Slope: 5°
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Rebate Depths Available: 100 mm to 260 mm
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Density: ~210 kg/m³
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Thermal Conductivity (λ): 0.047 W/mK
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Vapor Diffusion Resistance: Z = 7
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Water Pressure Resistance: >4000 mm
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Fire Class: E
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Weather Resistance: Up to 4 weeks exposed
The Steico fix 2.0 is made from hydrophobized wood fiber, produced sustainably and ecologically. It pairs seamlessly with other Steico insulation systems for roofs, walls, and ceilings, offering a complete building envelope solution.
👉 Order now in our online shop – ready to ship from stock within a few days!
🔗 Learn more about sealing connection joints in DIN 18533-1, which covers structural waterproofing standards.
