Wall ties are structural components used to link masonry veneer to wood/steel frames or tie two masonry wythes together, ensuring stability in cavity walls. Typically made of galvanized or stainless steel, they are embedded in mortar during construction to transfer loads and resist corrosion. Common types include corrugated, helical, and "Z" ties.
Key Aspects of Wall Ties
- Purpose: They secure masonry to structures, allowing for independent movement while providing lateral strength.
- Types:
- Corrugated/Brick Ties: Typically 22-gauge, used to connect brick veneer to wood or steel studs, often with embossed textures for extra grip.
- Wire Ties (Triangular/Z-type): Used for bonding multi-wythe masonry walls.
- Helical/Rectangular Ties: Often used in remedial work to fix failing walls, installed by tapping into mortar.
- Concrete Form Ties: Include loop or snap ties to maintain wall thickness and withstand concrete pressure during pours.
- Materials & Installation: Most are made from hot-dip galvanized or type 304 stainless steel to prevent corrosion. They are installed into the mortar bed at regular intervals.
- Failure and Replacement: Corrosion of older mild steel ties can cause structural issues, requiring replacement with stainless steel alternatives.
Commonly available in lengths around 7 inches, they are essential for creating a durable, safe structure.
