3 Story Building with Slenderwall Exterior Wall Panels
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Slenderwall® Architectural Wall Panels

Leesburg Concrete is a licensed producer of SlenderWall®, a proprietary high-performance, thermal, and fire code compliant, ASTM E119 fire tested architectural precast composite modular cladding system. As an exterior cladding wall panel system with great design flexibility, Slenderwall® reduces structural costs and on-site trades.

Lightweight Exterior Cladding

SlenderWall is designed to be lightweight (about 30 lbs. per square foot compared to approximately 85 lbs. for traditional heavy architectural precast), reducing foundation and superstructure requirements and reducing shipping and installation costs. The exterior precast concrete cladding and integrated stud system is isolated from the structural stresses associated with wind loading (tested to 226mph), steel frame movement, expansion and contraction, and seismic shock.

Reinforced, High-Strength Wall Panels

The SlenderWall® panel’s exterior surface is 2 inches of reinforced high-strength architectural precast concrete separated from the steel stud by ½” air space reduces thermal transfer between the materials. The inside surface is 14-16 gauge, 6-inch galvanized steel studs spaced vertically at 2-foot centers. The architectural concrete is secured to the steel-stud frame with ThermaGuard™, a proprietary connection system utilizing insulated, stainless-steel welded Nelson® anchors. SlenderWall® has been fully tested and meets the required ASTM and AAMA standards. SlenderWall® is used for new construction, re-cladding, and renovation of large, multi-story commercial and multi-family buildings.

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Limitless Options

The Slenderwall architectural precast concrete/steel-stud building panels offer limitless combinations of architectural precast textures, colors, shapes, and finishes.

Achieve the look you want

A Variety of Colors and Finishes

A Variety of Colors and Finishes
SlenderWall® can be made in any color or texture found within the PCI Color and Texture Guide. Over 24 colors/500 texture options are available from which you can choose.

Sandblasting & Acid Etching

A picture of sandblasted and acid etched precast concrete walls
Two simple yet elegant methods for finishing precast concrete is sandblasting and acid etching. You can apply them across the entire panel or mix and match to make custom patterns.

The Look of Brick

Two samples of brickface
Choose from dozens of color and finish options with either our thin brick form or hand-laid brick form.

Stains & Pigments

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Find the colors that are just right for your project using integral pigments in the concrete mix or surface stains.
 

Reveals & Projections

Picture of precast concrete with cut in reveals and projections
Mimic more expensive traditional materials or create modern schemes.

Formliners

Two different form liners for precast concrete show the possibilities of what can be achieved.
Formliners can be created to match almost any finish. Choose from dozens of standard patterns or design your own unique custom look.

Additional Information

SlenderWall® Features & Benefits

SlenderWall® provides designers with unique and limitless design flexibility and function. Additionally, SlenderWall® has several proprietary features yielding benefits that no other wall system provides, including:
  • Superb architectural design flexibility (limitless combinations of architectural precast textures, colors, shapes and finishes).
  • Superior durability.
  • Permanent components.
  • Plant-produced quality.
  • Lightweight (about 30 lbs. per square foot compared to approx. 85 lbs. for heavy architectural precast).
  • Economical (reduces building foundation and structure costs plus shipping and installation costs).
  • Makes cantilever designs practical.
  • Mounts outboard of the floor slab, yielding bonus square footage on each floor.
  • Perfect for both re-cladding and new construction.
  • Smaller cranes and fewer trailers to jockey.

Slenderwall® Specifications

Industry Focus
Commercial Construction | Architecture | Design-Build

Wall Type
Cladding | Curtainwall | Exterior Wall System | Precast Exterior Wall

Aesthetics
Virtually unlimited design flexibility. Leesburg Concrete can provide all the textures and colors found in the Precast Concrete Institute (PCI) Guide. We have named a few below to get you started:
  • Architectural Brick
  • SandStone
  • Capitol Granite
  • Carolina Granite
  • Colorado Granite
  • Buff Limestone
  • Desert Limestone
  • Indiana Limestone
  • and many other custom patterns.
Concrete Type
Reinforced architectural mix designed with integral color
  • G90 Galvanized Welded
  • Wire Mesh Reinforced
Steel Frame
  • 14 & 16 gauge G90 Galvanized 6" Studs
  • With Nelson® Stud Anchors
  • 1/2" air space between concrete and steel reduces thermal transfer.
Characteristics
  • Weighs 1/3 of Traditional Architectural Precast
  • Complete Turnkey System – Ready for insulation or drywall.
  • Install outboard of floor - Adds to the Amount of Usable Interior Space
  • Meets Seismic & Windload Requirements
  • Energy Efficient
Industry Standards
PCI Plant (Precast Concrete Institute)
  • Leesburg Concrete is rated top 10% in the nation in quality control
ANSI (American National Standards Institute)
  • ANSI/ASCE 7-93 Wind Load Calculations
ACI & PCI
Design standards comply with:
  • ACI 318M
  • PCI MNL 120
ASTM & AAMA
  • ASTM E90 - Sound Transmission
  • ASTM E 283 - Air Infiltration
  • ASTM E 330 - Structural Performance
  • ASTM E 330 - Preload at 50% design
  • ASTM E 331 - Static Pressure Water Resistance
  • AAMA 501.1 - Dynamic Pressure Water Resistance
  • AAMA 501.4 - Interstory Differential Movement/Seismic Movement
  • AAMA 501.5 - Thermal Cycling/Condensation Evaluation: AAMA 501.5-98
  • AAMA 1503 - Thermal Transmission
  • ASTM C94 - Ready Mix Concrete
  • ASTM C31 - Standard Practice for Making and Curing Concrete Test Specimens in the Field
  • ASTM C685 - Standard Specification for Concrete Made by Volumetric Batching and Continuous Mixing
  • ATSM 94 - Ready Mix Concrete
LEED Accredited (Leadership in Energy and Environmental Design)
We meet all state and federal Building Codes

Concrete Testing Methods
Tensile | Load | Shear | Air | Unit Weight | Temperature | Slump | And much more
  • Technical Design Guides are available.
Production Volume
Capable of 40 yards per hour in our state-of-the-art manufacturing facility which includes a computer-controlled mixer.
  • Specialty Manufacturing
  • High Volume
File Formats
AutoCAD (DWG, DWZ) | BMP | DXF | GIF | IGES | Inventor (IDW, IPT) | JPG or JPEG | PDF | Pro-E or Pro/Engineer (DRW,PRT,XPR) | STEP | TIFF

Thickness
2 in (Reinforced)

Interior Dimensions
14 & 16 gauge 6 inch G90 galvanized steel studs
 

Getting Started

If you are interested in learning more about Slenderwall architectural precast panels for your construction project, all it takes is a phone call (or an email.) We recommend getting us involved early so we can lend our expertise to your project. Our in-house design team, engineers, and technical staff have extensive experience and can help provide the best and most cost-effective solution for the needs of your project. And, if you are in the area, we welcome you to take a tour of our plant, to see samples of our products and learn how Slenderwall can help make light work of your project. 

When your construction project needs a high-quality product that meets exacting standards, you can count on Slenderwall Architectural Panels from Leesburg Concrete. Call us at 352.787.4177 or email us today to get started on your project.