Description

VapourSeal is a must-have when building or upgrading a deck. Designed to protect the subframe and joists, this premium moisture-sealing tape helps prevent water damage, timber rot, and costly repairs—ensuring your deck stands strong for decades.

This heavy-duty tape features a matte black resin cloth finish with a high-performance acrylic adhesive that sticks firm, even in tough Australian conditions. It’s easy to apply, tearable by hand, and has no paper liner—so there’s no mess and no fuss on-site. VapourSeal can also be repositioned shortly after application, giving installers extra flexibility during the build.

Perfect for joist protection and framing, VapourSeal creates a reliable moisture barrier that stops water from sitting on timber surfaces. It also improves thermal efficiency and controls airflow when used in wider building applications like sealing around windows, wraps, or rough openings.

Available in 50mm and 75mm widths (both 20m rolls), VapourSeal is easy to roll out and press into place. For best results, fold the edges over the joist to direct water away and ensure pressure is applied for maximum bond.

This tape is built to last, with UV and temperature resistance that makes it an ideal long-term solution for decking subframes, flashing, and building seals. And because it’s hand-tearable and backing-free, it’s faster and safer to install—especially when working on ladders, scaffolds, or time-sensitive jobs.

VapourSeal is more than just joist protection. It’s long-term peace of mind that your deck’s foundation is protected from day one.

Order online or visit our Ingleburn showroom to pick up VapourSeal today.