Zip Tape Window Flashing

The Zip Tape Window Flashing produced by Xiashi Packing Factory in China is suitable for all types of building doors, windows, skylights, and pipe penetrations in structures such as light steel villas, curtain wall buildings, steel structure workshops, tile roofs, sports venues, and industrial parks, providing sealing for these areas. The installation follows the principle of combining external ventilation with internal gas barrier protection; it should not be used interchangeably inside and outside the same structure.

Core Advantages of the Product

Both interior and exterior versions are precisely designed to fit together.

Distinguish between two types of substrates: outdoor vapor-permeable and indoor vapor-barrier materials, each serving distinct functions—exposing the outdoor layer to remove moisture from the interlayer while preventing humidity from penetrating the insulation layer indoors, thereby eliminating condensation and mold growth. Do not use a single type of adhesive tape throughout the entire house.

High-viscosity butyl composite substrate

Equipped with high-performance butyl pressure-sensitive adhesive, this zip tape window flashing can directly bond metal surfaces, OSB panels, wooden frames, and waterproof membranes. For rough cement surfaces, application of a matching interface agent ensures strong adhesion without peeling or detachment over long-term use.

The weather resistance is consistently excellent.

The temperature resistance range covers-40°C to 80°C, with no hardening at extreme low temperatures and no gelation at high summer temperatures. After a 4-month UV aging test, long-term outdoor use showed no powdering, delamination, or cracking.

High flexibility for adapting to irregular shapes during construction.

The substrate features inherent tensile flexibility, allowing free bending at complex joints such as concave/convex corners, curved bay windows, and dormer windows. The pre-cut corners during installation resist tearing and are compatible with various architectural window types.

Long-lasting protection against bacterial growth and mold formation

The zip tape window flashing is fortified with antibacterial ingredients, making it resistant to mold growth even when exposed to prolonged moisture in window openings, thereby extending the service life of both the wall and insulation layers.

Save energy and reduce consumption to lower construction costs.

Enhance the building's overall airtightness to minimize the loss of cold and hot air, achieving up to 40% savings in heating and cooling energy consumption; eliminates the need for additional multi-layer waterproof membranes, simplifies window opening procedures, shortens construction timelines, and reduces auxiliary material costs.

Eco-friendly and recyclable, compliant with green building standards.

Completely manufactured from recyclable polymer raw materials, with a flame retardancy rating meeting the national standard B2 level, suitable for passive houses and low-carbon prefabricated building construction requirements.

Specification

Installation Notes

Before construction, clean and dry the substrate surface; rough cement walls require application of a primer followed by drying. Do not mix vapor-permeable tape for outdoor use with moisture barrier tape for indoor use. Ensure tape overlaps are ≥10 cm, leave allowances at interior and exterior corners for corner sealing, and compact the tape using a spatula to eliminate air bubbles without excessive pulling. Ambient temperature must be no lower than-10°C; outdoor work is prohibited during rainy or snowy weather. Repair damaged tape promptly with butyl tape; for long-term exposed areas, use UV-resistant tape to prevent acid/alkali corrosion and prolonged mortar erosion on the tape surface.

FAQs

1. What are the construction standards for zip tape window flashing overlap and concave/convex corner applications?

The overlap width shall be ≥10 cm; corner joints at interior and exterior edges shall be chamfered with a width of 1–1.5 times the window frame joint gap, with sufficient stretch allowance reserved during cutting to avoid excessive tension.

2. Do I need to handle the bubbles that appear after pasting?

The exhaust must be rolled and pressed again; bubble formation or water accumulation may cause delamination and water infiltration.

3. Is it possible to carry out outdoor construction on rainy days or when there is frost?

No; a moist substrate significantly reduces the bonding strength of butyl adhesive.