RIB LATH Product Profile
1. Product Overview
Rib Lath, also known as stiffened expanded metal lath, is a versatile metal plaster base stiffened by longitudinal ribs. It is manufactured by punching and expanding galvanized steel or stainless steel sheets. The V-shaped ribs provide exceptional longitudinal rigidity, making it an ideal choice for large-span plastering, concrete formwork, and ceiling installations. Its unique mesh opening allows for excellent bonding with plaster or concrete, significantly reducing the risk of cracking.
2. Manufacturing & Craftsmanship
Our Rib Lath is produced through a continuous high-precision cold-rolling and expanding process:
Precision Perforating: The steel coil is fed into a CNC machine that creates staggered slits while simultaneously forming the deep V-ribs.
Expansion Process: The sheet is stretched to create the diamond-shaped mesh openings between the ribs. This process increases the surface area without increasing the weight.
Cold-Formed Ribs: The ribs are cold-rolled to a specific height (typically 4mm to 10mm) to ensure maximum structural stiffness.
Material Selection: Primary use of G60 or G90 hot-dipped galvanized steel ensures superior alkaline and corrosion resistance during the curing of wet materials.
3. Technical Advantages
Superior Rigidity: The "V" ribs allow the lath to be used on wider spacing for studs or joists compared to flat lath.
Enhanced Bonding: The mesh pattern provides a "key" for plaster or mortar, creating a mechanical bond that prevents sliding or delamination.
Crack Control: It distributes stress evenly across the surface, effectively controlling shrinkage cracks in concrete or stucco.
Time & Labor Saving: Its lightweight nature and ease of cutting/bending facilitate rapid onsite installation.
4. Technical Parameters
| Parameter | Specification |
| Material | Hot-Dipped Galvanized Steel, Stainless Steel 304/316 |
| Rib Height | 4mm, 5mm, 8mm, 10mm (Standard: 4.5mm or 10mm ) |
| Rib Distance | 75mm, 100mm, 150mm |
| Sheet Thickness | 0.20{mm} - 0.50{mm} |
| Weight per m² | 0.65{ kg/m}^2 - 1.85{ kg/m}^2 |
| Sheet Size | 600x2440{mm}, 610x2500{mm} (Customizable ) |
| Mesh Opening | 10x20{mm}, 15x25{mm} |
5. Key Applications
Construction Joints: Used as permanent formwork in concrete construction joints (Stop-end) to eliminate the need for scabbing/chipping.
Plastering Base: Ideal for suspended ceilings, partitions, and refurbishing damaged walls.
External Insulation: Reinforcement layer for EIFS and exterior stucco systems.
Structural Fireproofing: Supporting mesh for fireproofing spray on structural steel beams.
