Hurricane Ties
Hurricane ties are light-gauge metal connectors that tie rafters or trusses to the top plate and wall framing to resist wind uplift and maintain a continuous load path to the foundation.
Fast Facts
- What Is It?
- A metal uplift connector for rafters, trusses, and top-plate connections.
- Common Uses
- Roof framing in high-wind regions, rafter-to-plate connections, truss hold-downs, and retrofit wind hardening.
- Cost Range
- $1.00–$8.00 each depending on geometry, coating, and load rating.
- Durability
- Very good in protected framing; use upgraded coatings for coastal or treated-lumber contact.
Specifications
| Property | Value |
|---|---|
| Common Series | Simpson H2.5A, H1, H10A, MTS; equivalent uplift clips and straps |
| Typical Loads | Hundreds to low thousands of pounds uplift depending on model and fastener schedule |
| Installation | Fasten to each listed hole unless the catalog explicitly allows alternate patterns |
| Orientation | Left/right-specific models exist; install in the tested orientation only |
| Code Relevance | Used to satisfy wind uplift continuity under IRC / IBC prescriptive and engineered paths |
| Common Failure Point | Missing nails, bent straps, or incomplete load path below the clip |
Uplift Is a Load Path Problem
When wind passes over a roof, it can create suction strong enough to lift rafters or trusses off the wall. Hurricane ties address that by linking the roof member to the wall framing with a tested metal connector.
The tie alone is not enough if the wall below is weak or poorly anchored. Uplift design only works when the load path continues to the foundation.
Why Small Connectors Make a Big Difference
Hurricane ties are inexpensive and quick to install, yet they dramatically improve wind performance. That makes them one of the best value upgrades in roof framing, especially on exposed sites.
Retrofits often focus on these connectors because they offer measurable performance gains without a full structural rebuild.
Field Installation Tips
Use the exact nails or screws listed, keep the connector tight to the framing, and do not flatten or twist the body to make it fit. If the framing layout does not suit the connector, choose a different approved model rather than improvising in the field.
Inspectors often look for missing nails at the top plate or rafter edge because that is where rushed crews try to save time.
Frequently Asked Questions
Do hurricane ties matter outside hurricane zones?
Yes. They are really uplift ties, not region-specific gadgets. Mountain, lakefront, and ridge-top sites can see significant uplift even outside coastal code maps.
Is one clip enough if the roof still has toenails?
Toenails help locate the member, but uplift clips create the tested load path. In wind-prone assemblies, the connector is the reliable part of the connection.
Can I install only some of the required nails?
No. Published loads assume the listed hole pattern. Leaving holes empty usually reduces capacity and can void the evaluation data.
Also Consider
Joist Hangers
Joist hangers are metal connectors that support wood joists, headers, and beams at the end of a member where bearing cannot occur directly over a wall or beam.
Structural Screws
Structural screws are engineered fasteners designed to replace or outperform lag screws, carriage bolts, and common framing nails in many wood-to-wood structural connections.