Carlisle SynTec InsulBase HD Polyiso Insulation Board, 4 ft x 8 ft, 1/2 in (80 psi)
Regular price $3.96InsulBase HD 1/2 in Polyiso Roofing Cover Board
High‑density polyisocyanurate insulation board designed as a durable cover board for mechanically attached single‑ply roofing systems. The 4x8 sheet features GRF facers, delivers an R‑value of 2.5 at 0.5 in thickness, and offers robust 80 psi compressive strength for long‑lasting roof performance.
Key Features:
- High-Density Performance: 80 psi compressive strength resists foot traffic and hail in roofing applications
- Efficient Insulation: R‑value 2.5 at 1/2 in thickness for thermal stability
- Durable Construction: Closed‑cell polyiso core with glass‑reinforced felt facers on both sides
- Roofing Application Ready: Intended as a cover board for mechanically attached single‑ply systems in re‑roof and new construction
- Code Compliant: Meets ASTM C1289 Type II Class 1 Grade 3 and major IBC/UL/FM standards
Specifications Table:
| Specification | Details |
|---|---|
| Product Name | InsulBase HD (80 psi) Polyiso Insulation |
| Brand | Carlisle SynTec |
| Board Dimensions | 4 ft x 8 ft |
| Thickness | 0.5 in (1/2 in) |
| Compressive Strength | 80 psi |
| R-Value (0.5 in) | 2.5 |
| Core | High-density closed-cell polyisocyanurate foam |
| Facer | Glass-reinforced felt (GRF) on both sides |
| Intended Use | Cover board for mechanically attached single-ply roofing systems |
| Applications | New construction and re-roofing |
| Standards/Code Compliance | ASTM C1289 Type II Class 1 Grade 3; IBC Section 2603; UL 790/263/1256; FM 4450/4470; California Title 24 Insulation Quality Standard License #TI-1418; PIMA Quality Mark; CAN/ULC 5704 Type 2 & 3 Class 2 |
| Unit of Measure | PC (board) |
| Manufacturer Number | 332958 |
| Product Number | CAR12SSISBHD48 |
Frequently Asked Questions (FAQ):
Q: What are the board dimensions and thickness?
A: Each board is 4 ft x 8 ft with a 1/2 in (0.5 in) thickness.
Q: Where should this product be used?
A: Use as a rigid cover board in mechanically attached single‑ply roofing systems for new construction or re‑roofing.
Q: What is the compressive strength and R‑value?
A: Compressive strength is 80 psi; R‑value is 2.5 at 1/2 in thickness.
Q: What facers does it use?
A: Glass‑reinforced felt (GRF) facers are bonded to both sides of the polyiso core.
Q: Does it meet building codes and certifications?
A: Yes—complies with ASTM C1289 Type II Class 1 Grade 3, IBC Section 2603, UL 790/263/1256, FM 4450/4470, and carries PIMA Quality Mark; also recognized by California Title 24 and CAN/ULC 5704.
A Sleek, Structural Layer of Confidence
This board lends a quietly powerful foundation to any roofscape, delivering slim modern lines with formidable strength. The glass‑reinforced felt facer offers a refined, matte surface that disappears into the assembly while elevating performance. Pair it beneath a crisp single‑ply membrane to create a clean, resilient profile that feels impeccably tailored. It’s an understated essential for luxury that lasts.
Elevate your roof’s durability and thermal performance—add InsulBase HD to your project today.
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.
