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GAF STRUCTODEK HD High-Density Fiberboard Roof Insulation, Primed Red Coated, 0.5 in. or 1 in. x 4 ft x 4 ft/8 ft
Regular price $12.80Orders start at $399 — combine any items to reach the minimum. Learn more
GAF STRUCTODEK HD High-Density Fiberboard Roof Insulation, Primed Red Coated, 0.5 in. or 1 in. x 4 ft x 4 ft/8 ft
GAF STRUCTODEK HD is a high-density wood fiberboard roof insulation and coverboard with a Primed Red coating on both sides. The coated surface promotes a solid membrane bond while maximizing adhesive coverage per gallon. Sold per piece in 0.5 in. or 1 in. thicknesses in 4 ft x 4 ft and 4 ft x 8 ft panels.
Key Features:
- Strong membrane bond: The Primed Red Coating allows a solid membrane bond while still providing optimal square feet per gallon of adhesive coverage.
- Excellent adhesion: High-density fiberboard with unique bonding characteristics delivers excellent adhesion capabilities.
- Moisture-resistant core: Waxes and other moisture-resistant components are added early in manufacturing for superior core and edge protection.
- Two-sided coating: Every listed variant is coated on both sides for consistent performance.
- Cost-effective: Positioned as a cost-effective wood fiberboard insulation solution for commercial roofs.
- Multiple panel sizes: Available in 0.5 in. x 4 ft x 4 ft, 0.5 in. x 4 ft x 8 ft, 1 in. x 4 ft x 4 ft and 1 in. x 4 ft x 8 ft panels.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | GAF |
| Sell unit | 1 piece |
| Product line | GAF STRUCTODEK HD Fiberboard |
| Available colors | Red (Primed Red Coating, coated 2 sides) |
| Available sizes | 0.5 in. x 4 ft x 4 ft, 0.5 in. x 4 ft x 8 ft, 1 in. x 4 ft x 4 ft, 1 in. x 4 ft x 8 ft |
| Material | High-density wood fiberboard |
| Finish / texture | Primed Red Coating, coated 2 sides |
| Thickness | 0.5 in. or 1 in. depending on variant |
| Dimensions | 4 ft x 4 ft or 4 ft x 8 ft panels |
| Intended use | High-density fiberboard roof insulation for membrane roofing systems |
Coverage & How Much You Need:
One 4 ft x 8 ft panel covers 32 sq ft and one 4 ft x 4 ft panel covers 16 sq ft of roof area before field waste. Divide total roof square footage by panel size and add an allowance for cuts and laps to order the right piece count.
Fit and Compatibility:
Designed as a high-density fiberboard insulation layer beneath roofing membranes in GAF commercial systems. Adhesive or mechanical attachment methods and membrane materials should be selected per the specified roof assembly; fasteners and adhesives are sold separately.
Frequently Asked Questions (FAQ):
Q: What is included in one order?
A: One piece (PC) of fiberboard insulation in the thickness and panel size you select; each listed variant is coated 2 sides with the Primed Red Coating.
Q: How much area does one panel cover?
A: A 4 ft x 8 ft panel covers 32 sq ft and a 4 ft x 4 ft panel covers 16 sq ft, before cutting waste.
Q: Why is the coating red?
A: The Primed Red Coating promotes a solid bond with the roofing membrane while allowing optimal square feet per gallon of adhesive coverage.
Q: Is the board moisture resistant?
A: Waxes and other moisture-resistant components are added early in the manufacturing process, providing superior core and edge protection.
Q: Which thickness should I choose?
A: Both 0.5 in. and 1 in. panels serve as high-density fiberboard insulation; your specified roof assembly and insulation requirement determine the correct thickness.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
STRUCTODEK HD is the workhorse wood fiberboard coverboard for commercial low-slope assemblies, and the Primed Red coating on both faces helps you stretch adhesive coverage without sacrificing bond. Use the 4 ft x 8 ft panels on open fields to minimize seams and keep the 4 ft x 4 ft boards for cut-up roofs and smaller areas. Choose 1 in. when the assembly calls for more insulation value, and pair with a compatible insulation adhesive for membrane attachment.
Handle fiberboard panels with care during hoisting and staging, and follow the membrane manufacturer's installation and jobsite safety requirements.
Order GAF STRUCTODEK HD fiberboard insulation in the size and thickness your roof assembly calls for.
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