Description

VapourBand Expansion Tape 20mm x 15m

VapourBand Expansion Tape is a high-performance pre-compressed sealing tape designed to create a long-lasting weatherproof seal around windows, doors and building joints. It improves thermal efficiency while helping prevent unwanted air and water from entering the building envelope.

As the tape slowly expands after installation, it fills uneven gaps and creates a continuous seal that remains flexible over time. Its vapour-permeable design allows moisture to escape while still protecting against wind and rain, helping buildings stay dry and energy efficient.

Whether you’re installing new windows or sealing façade joints, VapourBand provides reliable performance for residential and commercial construction.

Designed for Reliable Window and Door Sealing

VapourBand expands gradually over up to 72 hours, depending on weather conditions. This controlled expansion allows installers plenty of working time while ensuring a tight, consistent seal once fully expanded.

The tape can be installed:

• Before fitting windows or doors
• After installation
• Around uneven or irregular gaps
• With packers adjusted to maintain a continuous seal

Its flexible expansion accommodates varying joint widths without compromising performance.

Improve Thermal Efficiency

A well-sealed building envelope helps reduce unwanted drafts and heat loss.

VapourBand helps:

• Reduce air leakage
• Improve thermal performance
• Increase weather resistance
• Assist with energy efficiency
• Maintain a breathable building envelope

Because VapourBand is vapour permeable, trapped moisture can escape naturally, reducing the risk of condensation and moisture-related issues.

Suitable for Many Construction Applications

VapourBand Expansion Tape isn’t just for windows and doors.

It can also be used for:

• Window installation
• Door installation
• Roofing valleys
• Corrugated roof sheeting interfaces
• Precast concrete panel joints
• Modular building construction
• Skylight installations
• Façade and cladding systems
• Acoustic sealing
• Soundproofing applications
• Skirting boards
• General gap sealing

Its versatility makes it an excellent choice for builders, carpenters, window installers and construction professionals.

Features

• High-performance pre-compressed expansion tape
• Size: 20mm x 15m
• Slow controlled expansion (up to 72 hours)
• Vapour permeable for moisture management
• Excellent resistance to air and water ingress
• Improves thermal efficiency
• Suitable for residential and commercial projects
• Easy to install before or after window installation
• Flexible seal for varying gap widths
• Long-lasting performance

Why Choose VapourBand Expansion Tape?

When installed correctly, VapourBand creates a dependable seal that helps improve building performance for years to come. Its controlled expansion, weather resistance and breathable design make it an ideal solution for modern construction where energy efficiency and moisture control are essential.

Whether you’re sealing a single window or completing an entire building project, VapourBand delivers reliable protection where it matters most.