Restoration Anchors

Restoration Anchors are often an effective solution for replacing failed anchors and lateral ties in masonry construction and preventing the potential of life safety hazards from falling components or collapse.

Brick/masonry buildings built before the 1960’s, were primarily built with mass masonry or solid brick walls. In these walls, each wythe of brick masonry is tied together with a tie course, every 16 to 24 inches vertically. This is accomplished simply by installing a course of brick perpendicular to the façade and embedding it into the adjacent wythe of brick. It is not uncommon to find portions of mass masonry walls where the tie courses have sheared due to excessive loads on the brick façade. In these cases, the brick cladding is potentially unsafe, with bulged areas, and the potential for collapse.

Brick buildings built in the U.S. after the mid-1960’s, were primarily built with a cavity wall design where the brick facade is stood off from the backup construction material approximately one inch, allowing room for insulation and waterproofing systems. A variety of metal brick ties have been used to secure these brick veneers to the backup materials. In our business it is not uncommon to find portions of brick veneers where the anchors have pulled loose or nearly corroded away entirely. As with mass masonry walls, when this happens the brick façade can become a life safety hazard.

Buildings with limestone, granite panel or similar veneers were also built with lateral ties or anchors. These anchors were generally fabricated from a mile steel subject to corrosion. Over time and continuous exposure to moisture, even simply atmospheric moisture, these components corrode and are no longer effective. Without these lateral anchors and ties, the masonry becomes potentially dangerous.

Examples of Restoration Anchors

Restoration anchors, used correctly, can be an effective solution for these types of issues. There are a variety of designs available for specific applications. In most cases, these are extremely cost-effective because installation is as simple as drilling thru the veneer, into the backup material, and installing the anchor/tie. This installation creates/replaces the missing lateral tie, eliminating the need for dismantling and reconstruction. Anchor types, sizes and spacings should be determined by a structural engineer.