Skip to content
InsulFoam 1.25 in. x 8.5 in. x 96 in. Flute Filler EPS Panel, White
Regular price $3.00Orders start at $399 — combine any items to reach the minimum. Learn more
InsulFoam 1.25 in. x 8.5 in. x 96 in. Flute Filler EPS Panel, White
InsulFoam FL Flute Filler is a closed-cell expanded polystyrene (EPS) panel made to fill the flutes of standing seam metal roof systems being re-covered. This panel measures 1.25 in. x 8.5 in. x 96 in. and is white. One piece is included per sell unit; taper, straight and custom-cut profiles are available in the line.
Key Features:
- Closed-cell EPS: Made from lightweight expanded polystyrene with a superior closed-cell structure.
- Stable R-value: Offers a long-term, stable R-value over the life of the roof assembly.
- Dimensional stability: Provides excellent dimensional stability, compressive strength and water resistance.
- Metal roof flute fill: Taper-cut or square-cut to fit in the bottom of standing seam metal roof flutes.
- ASTM C578: Upon request, manufactured to meet or exceed ASTM C578 for rigid cellular polystyrene thermal insulation.
- Custom profiles: Available in taper, straight or custom-cut profiles to fit any metal roofing system.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | InsulFoam |
| Sell unit | 1 piece, 1.25 in. x 8.5 in. x 96 in. |
| Product line | InsulFoam FL (Flute-Fill) |
| Available colors | White |
| Available sizes | 1.25 in. x 8.5 in. x 96 in. |
| Dimensions | 1.25 in. x 8.5 in. x 96 in. |
| Material | Expanded polystyrene (EPS), closed-cell |
| Finish / texture | White |
| Density | 1.25# |
| Standards | Manufactured to meet or exceed ASTM C578 upon request |
| Intended use | Flute filler over standing seam metal roof systems being re-covered |
Coverage & How Much You Need:
Each 96 in. (8 ft) panel fills the metal roof flutes along 8 linear feet at the 8.5 in. width. Measure your flute pitch and depth and order the taper or square-cut profile that matches the system being re-covered.
Fit and Compatibility:
Specifically manufactured for use over standing seam metal roof systems that are to be re-covered with new roof systems. Cut from the same high-quality EPS as InsulFoam's flat roof insulation products; final roof covering and fastening systems are sold separately.
Frequently Asked Questions (FAQ):
Q: What is included in one order?
A: One white EPS flute filler panel measuring 1.25 in. x 8.5 in. x 96 in.; panels are sold per piece.
Q: What is flute filler used for?
A: It fills the bottom of the flutes in standing seam metal roof systems that are being re-covered with a new roof system.
Q: Can it be cut to my flute profile?
A: Yes, InsulFoam FL is available in taper, straight or custom-cut profiles to fit any metal roofing system.
Q: Will the R-value degrade over time?
A: No, InsulFoam FL offers a long-term, stable R-value with excellent dimensional stability and water resistance.
Q: Does it meet an insulation standard?
A: Upon request it is manufactured to meet or exceed the requirements of ASTM C578.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Flute fill is a key step before re-covering an existing standing seam metal roof, since it smooths the corrugated profile and adds thermal value before the new membrane goes down. Confirm your flute depth and spacing so you order the matching taper or square-cut profile, and specify ASTM C578 compliance when the project documents require it. Store panels flat and protected from prolonged UV exposure until installed.
Handle and cut EPS panels with care in windy conditions and keep the material away from open flame and hot work on the roof.
Order InsulFoam FL Flute Filler panels to prepare your standing seam metal roof for re-covering.
All third party trademarks, including logos and icons, referenced on our website and product pages remain the property of their respective owners. Unless specifically identified as such, Arbor's use of third party trademarks does not indicate any relationship, affiliation, sponsorship, or endorsement between Arbor Home and the owners of these trademarks. Any references by Arbor Home to third party trademarks are to identify the corresponding third party goods.
