Level, Insulate, and Save Energy
FMI-EPS Flute Filler is a cost-effective, durable insulation solution for leveling metal roof decks and reducing energy loss. Made from Expanded Polystyrene (EPS), flute fillers act as void fillers to provide a uniform insulated substrate before installing a new roofing system.
Key Advantages
- Boost R-Value — Increases the thermal performance of the new roof assembly.
- No Thermal Drift — Maintains long-term R-Value with no loss of insulating power.
- Environmentally Safe — Contains no CFCs, HCFCs, HFCs, dyes, or formaldehyde.
- Lightweight & Strong — Easy to handle yet highly durable.
- Moisture Resistant — Superior resistance compared to other insulation materials.
Benefits
- Provides an economical method to fill roof deck voids.
- Available in profile-cut or square-cut to match any metal flute shape and depth.
- Proven EPS insulation performance for 35+ years.
- Flexible design: fabricate to virtually any profile, density, or thickness.
- Best insulating value per dollar compared to other materials.
Features
- Low moisture absorption due to closed-cell structure.
- Permeable but not a vapor barrier.
- Inert and stable — no decay, mold, or chemical breakdown.
- No leachates — won’t contaminate the environment.
- Design flexibility — custom profiles available.
Cautions
- EPS is combustible; must be installed with proper thermal barriers.
- Protect from solvents, UV exposure, and ignition sources.