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Elevate ISO 95+ GL Tapered Polyiso Roof Insulation, 25 psi, 1.5 in. to 2.5 in., 4 ft. x 4 ft.
Regular price $23.27Orders start at $399 — combine any items to reach the minimum. Learn more
Elevate ISO 95+ GL Tapered Polyiso Roof Insulation, 25 psi, 1.5 in. to 2.5 in., 4 ft. x 4 ft.
Elevate ISO 95+ GL tapered roof insulation is a closed-cell polyisocyanurate foam core laminated to a black glass-reinforced mat facer on both major surfaces. This 25 psi variant runs from 1.5 in. to 2.5 in. thick in 4 ft. x 4 ft. panels, providing thermal performance plus positive rooftop drainage to help eliminate ponding water.
Key Features:
- Tapered drainage: Tapered panels create positive rooftop drainage to help eliminate ponding water.
- Closed-cell polyiso: A closed-cell polyiso foam core is laminated to a black glass-reinforced mat facer on both major surfaces.
- Thermal leader: High-performance polyiso delivers the highest R-value per inch of common insulation systems.
- Meets ASTM C1289: ISOGARD polyiso is the first product on the market meeting both ASTM C1289 required and recommended thermal performance values.
- Reduced thermal drift: The ISOGARD formulation shows up to a 40% improvement in thermal drift over competitive products.
- ODP-free blowing agent: Uses an HCFC-free, EPA accepted blowing agent that does not contribute to ozone depletion.
- 25 psi compressive strength: Rated at 25 psi for commercial roofing applications.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Elevate |
| Sell unit | 1 panel, 4 ft. x 4 ft., 1.5 in. to 2.5 in. taper |
| Product line | ISO 95+ GL Tapered Insulation |
| Available colors | Gray (Y) |
| Available sizes | (Y) 1.5" to 2.5" taper, 4' x 4' |
| Dimensions | 4 ft. x 4 ft. panel, 1.5 in. to 2.5 in. tapered |
| Material | Closed-cell polyisocyanurate foam core with black glass-reinforced mat facers on both major surfaces |
| Compressive strength | 25 psi |
| Finish / texture | Black glass-reinforced mat facer |
| Intended use | Commercial low-slope roof insulation with positive drainage |
| Approvals | Meets both ASTM C1289 required and recommended thermal performance values |
Coverage & How Much You Need:
Each panel is 4 ft. x 4 ft. (16 sq ft) at the plan-view dimension, with thickness tapering from 1.5 in. at the thin edge to 2.5 in. at the thick edge. Design the taper system by roof area and desired slope, then sequence panels from drains to high points.
Fit and Compatibility:
Designed for commercial low-slope roofing systems and pairs with Elevate membranes, cover boards, and fastening/adoring systems. Membrane, plates, and fasteners are sold separately.
Frequently Asked Questions (FAQ):
Q: What is included in one unit?
A: One 4 ft. x 4 ft. tapered polyiso panel, 1.5 in. to 2.5 in. thick, 25 psi, Gray (Y).
Q: Why choose tapered insulation?
A: Tapered ISO 95+ GL provides positive rooftop drainage to help eliminate ponding water while adding thermal value.
Q: What is the facer material?
A: A black glass-reinforced mat facer on both major surfaces of the closed-cell polyiso core.
Q: How does it compare on R-value?
A: Polyiso delivers the highest R-value per inch of common insulation systems, and the ISOGARD formulation improves thermal drift by up to 40% over competitive products.
Q: What blowing agent does it use?
A: An HCFC-free, EPA accepted blowing agent that does not contribute to ozone layer depletion (ODP-free).
Q: Can it be mechanically attached?
A: Fastening methods depend on the roof system; use appropriate insulation plates and fasteners, sold separately.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Build a tapered layout around the field slope and drain locations, and confirm total thickness at the high point against edge metal and parapet heights before ordering. Store panels dry and off the ground and cut with a fresh blade for clean bevels. This 25 psi rating suits standard commercially fastened or adhered assemblies; choose higher-strength ISO only if the system design calls for it.
Keep polyiso insulation dry before and during installation, and follow the roof system's fire-safety practices on site, including no open flame near exposed foam.
Order Elevate ISO 95+ GL tapered polyiso insulation to add R-value and positive drainage to your low-slope roof.
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