RCM’s Ultra W1.4 fiberglass wire mesh is engineered to deliver outstanding reinforcement performance in slab- on-ground, overlays, and flatwork applications – without the handling challenges of steel. Unlike traditional welded wire mesh, Ultra W1.4 fiberglass wire mesh is lightweight, easy to cut, and extremely workable, allowing one person to manage and place rolls efficiently with minimal effort. One of its most defining features is its zero-memory behavior: the mesh unrolls effortlessly and lays completely flat on the slab without the need for manual repositioning or weights. This characteristic dramatically improves installation speed and consistency on site.

In addition to excellent workability, Ultra W1.4 fiberglass wire mesh is engineered for structural reliability. It is
manufactured using high-quality ECR glass and a durable epoxy matrix that maintains strength and form under demanding conditions. Unlike steel mesh, it will never rust or corrode, and once placed in concrete, it stays where it’s positioned – it doesn’t float or sink, maintaining consistent reinforcement depth throughout the pour. The product meets and exceeds ICC’s Acceptance Criteria AC521, ensuring it complies with modern performance expectations for non-metallic reinforcement. Whether you’re reinforcing a large industrial slab or working in a confined residential space, Ultra W1.4 fiberglass wire mesh offers a faster, cleaner, lightweight alternative to steel – without compromising performance.