VWFAHP Series Acrylic Breathable Tape is an exterior airtight sealing tape designed for window and door openings in low-energy and high-performance building envelopes. It helps seal structural gaps and joints while allowing essential outward vapor diffusion from the wall assembly.
As an external breathable sealing tape, VWFAHP helps maintain airtightness and weather protection without trapping interstitial moisture. It is suitable for European low-energy window installation methods where the exterior side needs to be water-resistant, vapor-open, and durable. Customized configurations are available, including split release liners for easier installation and an optional narrow reverse-side adhesive strip for temporary frame pre-fixing.
Product Information
| Product Series | VWFAHP Series |
| Product Type | Acrylic breathable tape / external window sealing tape |
| Material | Acrylic |
| Typical Application Style | European low-energy window installation |
| Primary Function | Exterior airtightness, water resistance, and outward vapor diffusion |
| Optional Configuration | Customized split release liner and optional narrow reverse-side adhesive strip for frame pre-fixing |
Available Sizes
| Model | Specification | Package |
|---|---|---|
| VWFAHP-10023 | 0.10 m × 23 m | 6 rolls / ctn |
| VWFAHP-12023 | 0.12 m × 23 m | 5 rolls / ctn |
| VWFAHP-15023 | 0.15 m × 23 m | 4 rolls / ctn |
| VWFAHP-20023 | 0.20 m × 23 m | 3 rolls / ctn |
Key Benefits
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Designed for exterior-side sealing around windows and doors
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Allows outward vapor diffusion while maintaining airtightness
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Helps reduce moisture accumulation around opening details
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Supports European low-energy window installation methods
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Improves durability of high-performance building envelope joints
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Available with customized split release liners and an optional reverse-side adhesive strip for easier installation



