Product Description
The Simpson TBP8 8" Truss Barrier Plate is a purpose-built moisture barrier designed to protect a truss at the critical bearing point where it meets the top of a concrete or masonry wall. Installed directly on the truss prior to placement, it uses three pairs of penetrating prongs in place of traditional fasteners, delivering a fast and straightforward installation process. The result is reliable moisture protection at one of the most vulnerable contact points in wall and roof framing, without the added cost of treated lumber.
Key Features
- Eliminates the need for higher-cost treated lumber - provides moisture protection at the truss bearing point so builders can reduce material costs without compromising performance
- Slightly narrower than 2x nominal lumber - the reduced profile prevents the plate from catching or pulling off during truss placement, keeping installation clean and efficient
- Three pairs of penetrating prongs designed for southern yellow pine and other common truss lumber - replaces traditional fasteners entirely, speeding up installation and reducing the number of steps on the jobsite
- Made from 22-gauge steel - delivers structural durability in a lightweight, low-profile form that installs before the truss is set
- G90 zinc galvanized coating - provides extra corrosion resistance for long-term performance in demanding framing environments where moisture contact is a concern
Why This Product
- A cost-effective alternative to treated lumber - by acting as a direct moisture barrier between the truss and the wall, the TBP8 removes the need for higher-cost treated lumber at this bearing location, offering meaningful savings on framing projects
- Fastener-free installation saves time - the built-in prongs grip common truss lumber types including southern yellow pine without requiring separate fasteners, simplifying the installation process and reducing labor at the point of truss placement
- Engineered fit reduces installation errors - the plate's slightly narrower-than-2x profile is intentionally designed to prevent snagging during placement, so the barrier stays in position exactly where it is needed
- Built for long-term durability - the combination of 22-gauge steel construction and a G90 galvanized finish means the plate resists corrosion at the truss-to-wall interface, supporting lasting performance in both concrete and masonry wall applications
Specifications
- Model Number: TBP8
- Gauge: 22
- Coating: Zinc Galvanized, G90
- Finish: Zinc Galvanized, G90
- Country of Origin: United States
Frequently Asked Questions
What is the purpose of the Simpson TBP8 Truss Barrier Plate?
The TBP8 serves as a moisture barrier between a truss and the top of a concrete or masonry wall. It is installed on the truss prior to placement to protect the truss at this critical bearing point.
How is the TBP8 attached to the truss?
The TBP8 features three pairs of prongs in place of fasteners. These prongs are designed to penetrate southern yellow pine (SYP) and other common types of truss lumber, allowing for quick and easy installation without traditional fasteners.
Does the TBP8 eliminate the need for treated lumber?
Yes. One of the primary benefits of the TBP8 is that it eliminates the need for higher-cost treated lumber at the truss-to-wall bearing location, providing a cost-effective alternative while still delivering moisture protection.
What material and corrosion protection does the TBP8 offer?
The TBP8 is made from 22-gauge steel and features a G90 zinc galvanized coating, which provides extra corrosion resistance for long-term durability in demanding installation environments.
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