What are exposed fastener wall panels?
Exposed fastener wall panels are economical, durable, and versatile. Many commercial buildings and common architectural areas feature exposed fastener wall panels. These panels are utilized in roofing and wall structures, including:
- accent areas in hospitals
- warehouses
- farming structures
- outdoor malls
- grocery stores
- carports
- bus terminals
- walkway canopies
What are the benefits of using exposed fastener wall panels?
Exposed fastener metal wall panels have their name because the panels are overlapped and the fastener is visible once installed. This makes installation relatively easy, as well as useful in new projects or to retrofit older projects.
Panels come in a range of colors, and the options available both in texture and size offer an affordable design option to make a bold architectural statement without breaking the bank. To help blend with the panels, fastener heads are usually painted the same color as the panels.
Types of Exposed Fastener Wall Panels
Exposed fastener panels are identified by some main criteria:
- Panel Width
- Rib Height and Center to Center Rib Spacing
- Cover Width after lapping
- Minimum slope
Typically, exposed fastener wall panels are 36” wide. This means that fewer panels, and thus less labor, is needed to cover an area. A few popular types of exposed fastener metal wall panels include corrugated panels, the 7.2 ribbed panel, and R panels.
Corrugated Panels
Corrugated metal panels have a classic ribbed design that adds texture and versatility to any design. They can be used in either vertical or horizontal applications and come in a variety of colors. Corrugated panels have a nostalgic appeal.
This type of exposed fastener metal wall panel was perhaps the first of its type and has a history that dates back to the 1830s. Corrugated panels gained in popularity in the early 1910s and have continued to have many uses, lending to more rustic designs or a retro edge to modern designs.
7.2 Ribbed Panels
7.2 ribbed panels are an exposed fastener wall panel that is an excellent choice for more contemporary designs, but also offers great versatility for both roofs and walls. Because of its symmetrical profile, and strength, it’s ideal for spanning over a distance. This is a great choice for carports, walkway canopies, or to make an eye-catching statement when installed horizontally.
R Panels
R panels are typically used in pre-engineered metal buildings but can be applied over many wall and roof assemblies. The use of R panels is also a great choice for retrofit applications. Mitered corners are usually available, giving this exposed fastener wall panel a very complete design.
Exposed fastener metal wall panels are a versatile and optimal choice for your commercial design project. Whether you’re fitting a large project or adding specific architectural elements to make a statement, these panels are a great option.
No matter what design profile you choose, this type of panel is cost-effective, has a long life expectancy, and allows for easy maintenance while also holding onto its clean and appealing design elements.
Materials Used in Exposed Fastener Wall Panels
Exposed fastener wall panels are typically made from metal. Common materials include:
- Aluminum: Lightweight, durable, and corrosion-resistant. Often used in architectural applications due to its versatility and aesthetic appeal.
- Steel: Strong and cost-effective, suitable for industrial and commercial buildings. Can be galvanized or coated for additional protection.
- Stainless Steel: High-end option known for its durability, corrosion resistance, and sleek appearance.
- Copper: Offers a distinctive aesthetic and excellent corrosion resistance, but is more expensive.
- Zinc: Provides corrosion protection and a natural finish.
Installation of Exposed Fastener Wall Panels
The installation of exposed fastener wall panels typically involves the following steps:
Substructure Preparation
- Framing: Ensure the underlying structure, such as steel or wood framing, is square, level, and plumb.
- Insulation: If required, install insulation between the framing members.
- Vapor Barrier: Apply a vapor barrier to prevent moisture intrusion.
- Fastener Placement: Determine the location of fasteners based on panel dimensions, wind loads, and building codes.
Panel Installation
- Panel Handling: Use appropriate equipment (e.g., forklift, crane) to safely handle and lift the panels.
- Alignment: Align the first panel with the building line and secure it to the substructure using self-drilling screws or other specified fasteners.
- Overlapping: Overlap subsequent panels according to the manufacturer’s recommendations, ensuring proper alignment and watertightness.
- Fastening: Secure each panel to the substructure using the specified fasteners and spacing.
- Sealants: Apply sealant to panel joints and penetrations to prevent water infiltration.
- Trim and Accessories: Install trim, flashings, and other accessories as required to complete the wall system.
Important Considerations
- Wind Loads: Proper fastener spacing and panel overlap are crucial for resisting wind uplift.
- Water Management: Ensure proper drainage and flashing to prevent water damage.
- Thermal Expansion: Account for thermal expansion and contraction of the panels to avoid damage.
- Safety: Adhere to safety guidelines for handling panels, working at heights, and using power tools.
Do exposed fastener wall panels require special maintenance?
One of the significant advantages of exposed fastener wall panels is their low maintenance requirements. Unlike other cladding materials, they typically demand minimal upkeep
While exposed fastener wall panels are generally self-cleaning due to the natural action of rain, occasional cleaning may be necessary to remove dirt, debris, or pollutants.
- Regular Inspection: Periodically inspect the panels for any signs of damage, such as loose fasteners, dents, or scratches.
- Gentle Cleaning: Use a soft brush or cloth and mild detergent to remove dirt and grime. Avoid abrasive cleaners or high-pressure washing, as these can damage the panel’s finish.
- Spot Cleaning: For stubborn stains, use a specialized cleaning product recommended by the panel manufacturer.
- Fastener Checks: Regularly check the condition of fasteners and tighten any that are loose.
Insulation with Exposed Fastener Wall Panels
Exposed fastener wall panels themselves do not provide significant insulation. Their primary function is to serve as an exterior cladding, offering protection from the elements. However, effective insulation can be achieved by incorporating it into the wall assembly.
Insulation Options:
- Insulation within the Wall Cavity:
- Mineral wool: Offers excellent thermal and acoustic insulation properties.
- Fiberglass: Common choice due to its cost-effectiveness and availability.
- Rigid foam board: Provides high R-values for superior insulation performance.
- Insulated Backup Panels:
- Some manufacturers offer insulated backup panels designed to be installed behind exposed fastener panels. These panels combine the structural strength of metal with insulation for improved energy efficiency.