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Patent Pending |
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#383: WWTA™ - Winged Wire Tie Anchor |
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The WWTA™ is a veneer anchoring system for attaching brick veneer to wood frame or concrete/CMU backup Walls in residential or commercial construction.
The innovative yet simple design of the WWTA™ offers several advantages over dovetail anchoring systems and standard 22 gage corrugated wall ties.
Product Submittal Sheet (PDF)
WWTA™ Advantages over Dovetail (PDF)
3D CAD File (CAD viewing software required)
Note: The WWTA™ is NOT intended for use in situations where sheathing or insulation is used against the backup wall. The Winged Anchor can only be used against a solid backup. For situations where sheathing or insulation is being used against the backup wall, please see the Pos-I-Tie® Brick Veneer Anchoring System. |
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"Say Goodbye to Dovetail Anchor Systems!" |
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| WWTA™ Advantages over Dovetail Anchor Systems: |
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| SAVES MONEY: |
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- WWTATM material costs are as much as 85% less expenstive than Dovetail Anchoring Systems!
- The Dovetail Slot when installed leaves 16” to 24” of un-utilized channel, which is wasteful and costly.
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| EASY INSTALLATION: |
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- The WWTATM anchor can be installed in a matter of seconds, placed directly on the finished concrete wall. It can be easily added, removed, or adjusted as necessary resulting in significant savings in time and labor costs.
- Installation for Dovetail Slot is labor intensive. There is no room for adjustment, once the concrete is poured into the form.
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| BETTER PERFORMANCE: |
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- WWTATM allows adequate vertical adjustability using the Pintle Wire Tie legs rather than wasting 24” of channel per anchor.
- WWTATM accepts the Pintle Wire Tie directly without added Dove Tail Plate, making the tie less costly, reducing free play in the connection, and preventing occasional buckling of the tie.
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"Say Goodbye to Corrugated Wall Ties!" |
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| WWTA™ Advantages over Corrugated Wall Ties: |
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- Standard corrugated wall ties require 2 fasteners for installation. The WWTA™ only requires 1 wood screw, making it easier and quicker to install.
- Winged Anchor is attached to wood stud using a 2-1/2” wood screw. The screw is always concentric with the load to resist larger forces with the same fastener. (note: ACI 530 code requires screw to penetrate into wood stud a minimum of 1-1/4”. The 2-1/2” screw allows for the 1/2” thickness of the winged anchor and a maximum plywood thickness of 3/4”.
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| Product Features |
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| FEATURES: |
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- Complies with ACI 530 building code requirements for masonry structures, UBC, IBC
- Complies with the latest seismic building code recommendations. Related article: “Seismic Performance of Modern Masonry” report in The Construction Specifier Magazine, December 2009 issue.
- Winged Anchor features two wing holes allowing for maximum allowable vertical adjustment of the wire tie for placement into the mortar bed.
- Standard WWTA™ Pintle Wire Tie is hotdip galvanized after fabrication – 9 gage x 3-1/2” long for a 1” airspace. Custom sizes are available.
- Seismic Pintle Wire Ties are available for IBC seismic zones D, E and F.
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| Seismic Performance in Masonry:
The picture on the right shows the results of using standard corrugated wall ties during a simulated earthquake test. The arrows in the photo highlight corrugated wall ties that failed during testing. For greater seismic performance, use the WWTA™ in place of standard 22 gage corrugated wall ties.
For more information regarding the results of recent shaking-table tests on three-dimensional structures, see the “Seismic Performance of Modern Masonry” report in The Construction Specifier Magazine, December 2009 issue. To view this article in digital format, click the following link: |
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Brick veneer wall falls under moderate earthquake when attached with 22Ga wall ties and nails. |
The article begins on page 56.
GO TO ARTICLE. (Software update may be required) |
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1) Using a power drill and #2 phillips driver, insert screw and Winged Anchor as shown.
2) Align screw with wood stud in the backup wall and keep wings of the anchor in a horizontal position.
3) Drive screw through the sheeting and wood stud backup until the assembly is securely fastened.
4) Insert the Pintle Wire Tie through the holes of the Winged Anchor.
5) Adjust the wire tie vertically to embed within the mortar joint of the brick veneer.
Application View