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Handling Large IMPs: Jobsite Best Practices for Safety and Quality

Posted by GSP Marketing on October 7, 2025

Insulated Metal Panels (IMPs) are precision-engineered building systems that deliver strength, aesthetics, and superior thermal efficiency in a single component.  Each panel represents a significant investment in your project’s performance and longevity – an investment that can be compromised by damage or distortion before installation.

Protecting that investment requires careful coordination at every stage, from delivery to final placement. Improper lifting, incorrect stacking, or moisture exposure can weaken structural joints, reduce insulation values, and damage factory finishes.

At Green Span Profiles, we engineer our panels for decades of reliable service. Realizing that durability starts with proper handling from the moment they arrive on site. The guidelines that follow outline proven best practices for receiving, storing, and handling large IMPs safely and efficiently.

Plan Ahead Before Delivery

Effective handling starts well before the first truck pulls onto the site.

  • Designate a proper storage area: Select a clean, level, and compacted surface that can support the full weight of the panel bundles. Keep it clear of high-traffic zones to prevent accidental impact from equipment or other trades.
  • Confirm delivery access: Ensure there’s ample turning radius and overhead clearance for trucks, cranes, or forklifts to unload safely and efficiently.
  • Verify the shipment: Cross-check all bundles, trims, and accessories against the packing list upon arrival to confirm correct quantities and dimensions.
  • Inspect packaging integrity: Look for any tears or punctures in shrink wrap or banding and report them immediately. Even small breaches can allow moisture to infiltrate and damage panels.

Green Span Tip: Reduce risk by minimizing idle time. Schedule deliveries as close to installation as practical—ideally within one week of use.

Safe Unloading and Lifting Techniques

Improper unloading remains one of the leading causes of panel damage. Always use equipment designed for handling long, heavy, or delicate materials.

  • Forklifts: For bundles up to approximately 36 feet in length, use two forklifts spaced at least five feet apart. Equip forks with protective padding to prevent abrasion or denting.
  • Cranes: For oversized bundles or roof panels exceeding 40 feet, cranes fitted with approved lifting devices are the preferred choice for stable, controlled movement.
  • Vacuum lifters vs. clamps:
    • Vacuum lifters evenly distribute panel weight, reducing point stress and the risk of surface marks—ideal for smooth-faced panels.
    • Mechanical clamps work well for textured or corrugated finishes but must be properly padded and rated for the panel’s specific dimensions and weight.
  • Spreader bars and nylon straps: Use these to support panels during lifting and to prevent bending or bowing. Avoid steel cables or chains that can scratch or imprint finishes.

Green Span Tip: Always lift panels from the bottom face—never slide or drag them from a bundle. Dragging can cause face delamination or corner impact damage.

Best Practices for On-Site Storage

Proper storage is essential to maintain panel appearance and performance once unloaded. Follow these proven guidelines to protect panels from damage and moisture.

Follow these storage guidelines:

  • Elevation: Raise bundles at least 12 inches off the ground with dunnage or lumber spacers to prevent contact with standing water or debris.
  • Drainage: Slightly elevate one end of each bundle to encourage water runoff and avoid moisture pooling beneath the panels.
  • Ventilation: Do not store panels in tightly sealed spaces where condensation may form. If moisture appears, slit the plastic wrap at the ends to improve drainage and airflow.
  • Protection: Cover panels with breathable tarps or securely fastened plastic sheeting to shield against wind and sun. Avoid opaque or non‑breathable wraps that trap heat or humidity.
  • Inspection: Check coverings daily and after rainfall. Repair or replace any damaged wraps immediately to maintain protection.
  • Separation: Leave sufficient clearance between bundles for safe forklift access and handling without contact damage.

Green Span Tip: Trapped moisture over time can cause storage stains or finish discoloration. Keep IMPs shaded, dry, and well‑ventilated to ensure they remain installation‑ready.

Handling Individual Panels During Installation

During installation, panels are most vulnerable to surface dents, edge deformation, and finish damage. Supervisors should confirm that all crew members are trained in proper handling and cutting techniques.

  • Use proper supports. Always support panels evenly along their full length when cutting or trimming to prevent bowing, buckling, or core separation.
  • Protect surfaces. Place temporary padding on sawhorses, clamps, and worktables to avoid surface marring during handling or fabrication.
  • Avoid impact tools. Use manufacturer‑approved cutting methods—such as metal shears or fine‑tooth blades—instead of abrasive saws that generate heat and can compromise the finish.
  • Clean as you go.  Immediately remove all metal shavings and debris to prevent rust spots, corrosion, or surface scratches.

Green Span Tip: Even small dents or coating damage can reduce thermal efficiency and may void warranty coverage. Treat every panel as a finished façade component.

Managing Weather Exposure on Site

Weather is one of the most unpredictable factors on any job site. Sun, moisture, and wind can all affect panel performance and appearance if not carefully controlled.

  • Sunlight: Prolonged UV exposure may cause uneven color fading or surface heat distortion. Whenever possible, store panels in shaded or covered areas.
  • Rain and humidity: Keep all bundles elevated and protected from standing water. If panels do get wet, allow them to dry completely before installation to prevent trapped moisture and potential corrosion.
  • Wind: Secure tarps, wraps, and any loose materials daily. Strong winds can lift or shift stacked panels, creating both damage and safety hazards.

Green Span Tip: Inspect stored panels at the start and end of each workday. Re‑secure protective covers after every shift—small preventive steps that save significant time and cost during installation.

Common Mistakes to Avoid

Mistake Resulting Damage Prevention
Dragging panels from a stack Surface scratches and face delamination Lift panels vertically using straps or vacuum lifters
Using unpadded steel cables Finish abrasion or denting Use padded nylon slings or approved lifting devices
Leaving bundles in standing water Storage stain and corrosion Elevate bundles and ensure adequate drainage
Storing near heavy machinery Impact or puncture damage Designate a protected storage area away from active equipment
Cutting unsupported panels Core separation or panel buckling Provide continuous support along the panel length when cutting

 

Proper Material Handling Protects Your Investment

By following these best practices for delivery, storage, and lifting, project teams can preserve structural integrity, maintain appearance, and ensure smooth installation from truck to wall.

Contact Green Span Profiles today for our Insulated Metal Wall Panel Installation Guide or to consult with a technical specialist about approved lifting devices and jobsite handling procedures for your next project.

Topics: Insulated Metal Panels, Safety, Construction

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