3-1/2" isoweld® FI-Pad Cardboard Spacer

For Thermoplastic Roof Systems | Compatible with TPO & PVC Plates

Ensure optimal performance and protection during membrane induction welding with the 3-1/2" isoweld® FI-Pad Cardboard Spacer—a specialized, thermally isolating spacer engineered for precision and reliability in commercial roofing applications. Designed for use with foil-faced and fanfold EPS or XPS insulations, this treated cardboard spacer acts as a protective barrier between the isoweld® plate and the insulation layer, safeguarding against thermal damage caused during the induction welding process.

Whether you’re installing TPO or PVC membranes, this spacer enhances jobsite efficiency while maintaining the integrity of your roofing system. It’s lightweight, easy to handle, and seamlessly integrates with isoweld® TPO and PVC plates.

Key Features:

• Thermal Protection: Prevents heat transfer to insulation, avoiding melting or distortion during induction welding.
• Versatile Compatibility: Pairs perfectly with isoweld® TPO (155269) and PVC (155270) plates, and works with various fasteners including #15 Dekfast, TPR Peel Rivets, and #12 Purlin.
• Easy Installation: Fast and straightforward installation minimizes labor time and simplifies system integration.
• Durable Construction: Manufactured from treated cardboard with a sturdy 0.031" thickness and 3.543" diameter for dependable performance.
• Eco-Conscious Material: Natural tan color and recyclable cardboard composition offer a more sustainable accessory option.

Specifications:

• Outside Diameter: 3.543" (90mm)
• Thickness: 0.031" (0.8mm)
• Material: Treated cardboard
• Color: Natural / Tan
• Packaging: 1,000 units per carton (Carton weight: 7 lbs)

Compatible With:
isoweld® TPO Plate (155269), isoweld® PVC Plate (155270), #15 Dekfast, TPR Peel Rivet, #12 Purlin

Ideal For:
Roofing professionals working with thermoplastic membranes who require a reliable spacer to ensure insulation protection and a clean, high-quality weld during induction attachment.