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Elevate ISO 95+ GL Grade-III 25 psi Polyiso Roof Insulation Board, 2 in. x 4 ft x 4 ft
Regular price $16.35Orders start at $399 — combine any items to reach the minimum. Learn more
Elevate ISO 95+ GL Grade-III 25 psi Polyiso Roof Insulation Board, 2 in. x 4 ft x 4 ft
This is a 2 in. thick, 4 ft x 4 ft Elevate ISO 95+ GL Grade-III polyisocyanurate roof insulation board rated at 25 psi compressive strength, with a closed-cell polyiso core laminated to glass-reinforced mat facers. Sold per piece; order boards to build up the required R-value in flat and low-slope commercial roof assemblies.
Key Features:
- 25 psi strength: Grade-III board with 25 psi minimum compressive strength for heavy-duty roof assemblies.
- Glass mat facers: Closed-cell polyiso core laminated to glass-reinforced mat facers on both major surfaces.
- High R per inch: Polyiso delivers the highest R-value per inch of common roof insulation systems.
- Broad approvals: ASTM C1289 Type II Class 1, FM Approved, UL Classified, Miami-Dade County Approved, CCMC 13274-L.
- Low-GWP foam: Uses EPA-accepted, HCFC-free blowing agents that do not deplete the ozone layer.
- System fit: Engineered for Elevate commercial low-slope roofing systems.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Elevate |
| Manufacturer model | W84M112004 |
| Sell unit | 1 board, 2 in. x 4 ft x 4 ft |
| Product line | ISO 95+ GL / ISOGARD GL polyiso roof insulation |
| Dimensions | 4 ft x 4 ft, 2 in. thick |
| Thickness | 2 in. |
| Compressive strength | 25 psi (Grade-III) |
| Material | Polyisocyanurate foam with glass-reinforced mat facers |
| Applicable standards | ASTM C1289, Type II, Class 1; CAN/ULC-S704, Type 1, Class 3; CCMC 13274-L; FM Approved; ISO 9001 Registered Facility; LEED; Miami Dade County Approved; PIMA Quality Mark; UL Classified |
| Blowing agent | HCFC-free, EPA accepted, ODP-free |
| Intended use | Flat and tapered roof insulation for commercial low-slope roofing |
| Weight | 6 lb |
Coverage & How Much You Need:
Each 4 ft x 4 ft board covers 16 sq ft of roof deck at 2 in. thickness; divide the total roof area by 16 sq ft to determine board count.
Fit and Compatibility:
Designed for use in Elevate low-slope roofing assemblies; combine multiple layers of ISO 95+ GL boards and install under the specified Elevate membrane system per the system specification. Membrane, fasteners and plates sold separately.
Frequently Asked Questions (FAQ):
Q: What size is each board?
A: Each board is 2 in. thick and 4 ft x 4 ft, covering 16 sq ft.
Q: What does Grade-III / 25 psi mean?
A: It is the board's compressive strength class: 25 psi minimum per ASTM C1289.
Q: What facers does it have?
A: Glass-reinforced mat facers on both major surfaces of the closed-cell polyiso core.
Q: Is it approved for Florida and FM projects?
A: Yes, it is listed as Miami Dade County Approved and FM Approved, plus UL Classified and ASTM C1289 compliant.
Q: What R-value does it provide?
A: Elevate states ISOGARD polyiso meets both ASTM C1289 required and recommended thermal performance values and delivers high R-value per inch; check the manufacturer's data sheet for the exact long-term R-value at 2 in.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Grade-III 25 psi board is the go-to choice where rooftop traffic, heavy membrane overburden or thick assemblies demand higher compressive strength. Layer boards with staggered joints, always placing a suitable cover board or per-spec layer below the membrane, and confirm attachment rates with the Elevate system specification. Order flat board here; use tapered ISOGARD GL where positive drainage is needed.
Handle boards carefully to avoid cracking, and follow the roofing system specification and local code for fire, attachment and wind-uplift requirements.
Order Elevate ISO 95+ GL Grade-III polyiso roof insulation, 2 in. x 4 ft x 4 ft, for your next low-slope project.
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