SL73 Hurricane
Hurricane-Rated Thermally Broken Folding Glass Door
- Florida Product Approved with Impact Glass in High Velocity Hurricane Zone (HVHZ)
- Forced entry rated and dynamic water performance
- Eliminates the need for unsightly hurricane shutters
Completely Impact Rated
Many approved systems are limited to outward opening and are not approved for areas that need protection from water. The NanaWall SL73 offers a complete impact rated system, allowing both inward and outward opening systems to qualify, while also providing protection from water penetration.
Our Toughest Folding System
The NanaWall SL73 is perfect for securing common areas and in areas exposed to heavy rain. Both forced entry rated and passing a more difficult water test, you can rely on the NanaWall SL73 when you need it most.
Reinforced for Mid-Rises
The NanaWall SL73 has achieved design pressure performance making it acceptable for up to mid-rise level exposures.
Many approved systems are limited to outward opening and are not approved for areas that need protection from water. The NanaWall SL73 offers a complete impact rated system, allowing both inward and outward opening systems to qualify, while also providing protection from water penetration.
See Florida Approved NanaWall Systems
Reinforced structural posts and impact rated laminated glass provide unparalleled strength. Dual stainless steel elevated running carriages within the reinforced structural posts are unaffected by track debris and lie above the water run-off level.
See Bear-Resistant Glass Doors
The NanaWall SL73 features a door panel depth of 70mm utilizing an advanced thermal strut that provides comfort for all climates and excellent sound control.
Extreme Weather Resistant
Energy-efficient by design, our glass walls keep the elements at bay, ensuring that even as seasons or temperatures change, your interior comfort will always remain the same.
Certified Testing Standards
NanaWall products endure the latest AAMA testing standards for air, water, structural, and forced entry.
Highly Energy-Efficient
Designed to keep the elements at bay, holding warmth inside while acting as a transparent barrier to the weather outside.
Materials Transparency
This product contributes to multiple LEED rating systems and has HPD certification.
Download Declaration Documents
Test Results
NanaWall SL73 has been independently tested for air and water penetration resistance, structural deflection, and forced entry.
Florida Product Approval # FL20107
See Air, Water, Structural, Thermal, and Forced Entry Results
Completely Impact Rated
Many approved systems are limited to outward opening and are not approved for areas that need protection from water. The NanaWall SL73 offers a complete impact rated system, allowing both inward and outward opening systems to qualify, while also providing protection from water penetration.
Proven Performance in Extreme Coastal Conditions
Installed in high-exposure coastal environments, NanaWall systems are designed to withstand severe weather conditions without compromising interior comfort.
The Silverstone residence features a 23' SL73 folding glass wall system with a raised sill, opening outward toward the Atlantic Ocean.
“Our house and NanaWalls got hammered last night by Hurricane Sandy and not a drop of water leaked through the NanaWalls.”
— David Silverstone, Homeowner
50 standard colors that come at no additional cost, with an additional 200+ colors to choose from.
See Finish Options
SL73 is available in three options: High Performance, Low Profile Saddle and Low Profile Saddle with UniverSILL®.
See Sill Options
Units can be supplied glazed with either annealed or heat strengthened 7/16" single impact glass or 1 1/8" insulated impact glass. According to the Dade County approval and engineering analysis, heat strengthened glass needs to be used for larger sized panels and/or higher design windloads; see product approval details. Please contact NanaWall for many other types of glazing that are available.
See Glazing Options
Stylish Handles in Multiple Finishes
Our handles are both functional and stylish and can be customized to accentuate your space and reflect your style.
See Handle Options
Locking for Maximum Security
Standard to the system is concealed locking between folding panels that operates with a 180° turn of a flat handle.
See Locking Options
Retractable Screens
A retractable screen add-on is perfect for blocking bugs while providing privacy and fresh air. Screens are not available through NanaWall Systems.
Retractable ScreensDesign and customize systems using our 3D CAD/Revit/Spec Configurators or contact our dedicated design team for more possibilities.
Over 90 standard configurations for straight-forward folding systems.
Standard configurations show the most common way folding glass wall panels align across a straight opening. Panels operate in a continuous line without special conditions such as corner openings, wall pockets, or intersections, making this layout a clear starting point for planning straightforward openings.
View More Standard Configurations View Product ApplicationsWhat Our Customers Have to Say
Tequesta Residence
NanaWall SL73 hurricane-rated folding glass walls connect this Florida residence to the pool and courtyard, providing expansive views, natural ventilation, and flexible indoor-outdoor living.
Palm Island Residence
The Palm Island Residence uses NanaWall SL73 hurricane-rated folding glass walls to seamlessly connect luxury interiors with expansive Biscayne Bay views.
“The weather in South Florida is notoriously intemperate. The cabana—with the assurance of its NanaWall opening glass wall—provides security from a passing thunderstorm.”
— Kathleen Allen, Contractor
NanaWall SL73 is specifically designed and engineered for hurricane-prone environments. It is Florida Product Approved with impact glass for High Velocity Hurricane Zone applications and is built to protect against wind, rain, and severe coastal weather conditions.
Yes. SL73 offers a complete impact-rated folding glass wall system. Unlike some approved systems that are limited to outward-opening configurations only, SL73 can qualify for both inswing and outswing designs while also providing protection against water penetration.
Yes. SL73 is designed with impact-rated glass and hurricane performance in mind, helping eliminate the need for unsightly hurricane shutters while maintaining open views, natural light, and architectural design intent.
SL73 is NanaWall’s toughest folding system and is well-suited for common areas and locations exposed to heavy rain. It is a forced entry-rated product and has passed demanding water performance testing, supporting dependable performance when protection is needed most.
Yes. SL73 has achieved design pressure performance that makes it acceptable for up to mid-rise exposures, making it a strong solution for coastal residential, hospitality, and commercial projects requiring elevated windload performance.
SL73 offers extensive design flexibility, including hundreds of powder coating finishes, multiple sill options, thermal and impact glazing choices, stylish handle finishes, concealed locking between panels, and over 90 standard folding configurations.
We consider ourselves your partners from day one. Connect immediately with a NanaWall expert to answer your questions and explore how we can support your project.
(866) 210-4285
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