InsulBase HD 1/2 in Polyiso Roofing Cover Board
Highdensity polyisocyanurate insulation board designed as a durable cover board for mechanically attached singleply roofing systems. The 4x8 sheet features GRF facers, delivers an Rvalue of 2.5 at 0.5 in thickness, and offers robust 80 psi compressive strength for longlasting roof performance.
Key Features:
- High-Density Performance: 80 psi compressive strength resists foot traffic and hail in roofing applications
- Efficient Insulation: Rvalue 2.5 at 1/2 in thickness for thermal stability
- Durable Construction: Closedcell polyiso core with glassreinforced felt facers on both sides
- Roofing Application Ready: Intended as a cover board for mechanically attached singleply systems in reroof 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 singleply roofing systems for new construction or reroofing.
Q: What is the compressive strength and Rvalue?
A: Compressive strength is 80 psi; Rvalue is 2.5 at 1/2 in thickness.
Q: What facers does it use?
A: Glassreinforced felt (GRF) facers are bonded to both sides of the polyiso core.
Q: Does it meet building codes and certifications?
A: Yescomplies 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 glassreinforced felt facer offers a refined, matte surface that disappears into the assembly while elevating performance. Pair it beneath a crisp singleply membrane to create a clean, resilient profile that feels impeccably tailored. Its an understated essential for luxury that lasts.
Elevate your roofs durability and thermal performanceadd InsulBase HD to your project today.
