Masonry veneer ties play a critical role in supporting brick and stone facades, but their installation must not compromise the wall’s air and water barrier continuity. This article explains how to properly integrate ties with WRBs and sheathing membranes while preserving long-term performance.
Types of Veneer Anchors
- Corrugated sheet metal ties (not recommended for modern performance walls)
- Wire ties and adjustable anchors with eyelets
- Screw-in plate anchors with thermal break washers
- Seismic anchors for cavity walls in high-wind or seismic zones
Penetration Sealing Practices
Each tie penetration must be sealed to maintain WRB and air barrier continuity. This includes:
- Installing gaskets or EPDM washers behind the tie plates
- Applying sealant at tie fasteners that penetrate sheathing
- Coordinating tie installation after WRB is fully applied and cured
- Using fluid-applied membranes that can self-seal around anchors
Flashing and Drainage Coordination
Ensure ties are placed above through-wall flashing elevations and not within weep zones. Install ties at stud locations or structural sheathing only, spaced per code (typically 16” O.C. horizontally and 24” vertically). Flashing must lap over WRB and fully wrap tie plates or flanges as needed.
Inspection Checklist
- Confirm spacing and embedment of ties match structural design
- Verify ties are not bent or displaced during brick install
- Ensure no WRB damage during anchor installation
- Inspect sealant or membrane touch-ups at each anchor
Photograph all tie zones prior to veneer placement and document fastener types, sealants used, and WRB condition for warranty and compliance records.
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