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CORRUGATED TIES NOT PERMITTED IN COMMERCIAL CONSTRUCTION
Item I:
1. Corrugated wall ties are only allowed, by code, to be used in veneer work on wooden studs.
2. If brick is veneered over concrete block, or concrete backing- only wire anchors, adjustable anchors or joint reinforcement is allowed by code. That
is the LAW! Copy enclosed. [85 to 90% of corrugated ties used in the Chicagoland area, with block backup, is by non union, or very uneducated bricklayers. 10 to 15% is by local residential bricklayers, who
are moving up from residential wooden framed veneer, to brick with block backup for small commercial construction. By the way, where is the architect on this job? What is called for on the drawings?
On the drawings (under Mandatory Specifications Checklist in the ACI 530 Code, Notes to Architect / Engineer), specify the location, spacing and
type of accessories not indicated on the project drawings.
Item II:
If the brick & block wall has already been laid up with corrugated ties, then a retro tie will have to be installed, by drilling and installing such
anchor. (Copy enclosed.) If the block has been laid up with corrugated ties and the brick veneer has not been laid up yet, another option is to install D/A 5213 anchors onto the CMU backup and a wire
pintle should be installed to tie the brick veneer to the backup.
Item III:
On all exterior walls- all joint reinforcement, wire ties, or wire anchors, minimally must be hot dipped galvanized- to ASTM A153 (1.5 oz/ft2) (That is
the law!)
How can you tell it is hot dipped compared to just mil galvanized? (They both look silver!) For wire reinforcing, it comes banded together and is
labeled, HD, on the end of each bundle. Individual hot dipped pieces look like they were dipped in a trough of silver paint and the metal is encapsulated.
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HECKMANN BUILDING PRODUCTS
