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CertainTeed Roofing
B (1-1/2" to 2") Tapered 4' x 4' Grade-II (20 psi) Polyiso
QXO product C-258852 · 1 options
Selected: CTR ISO B PANEL GR-II 20PSI
QXO SKU 258852 · Product number CTRTB
Free, no-obligation quote. Our team confirms local availability, required quantities, compatible components, and installation pricing.
Selected option specifications
- UOM
- PC
- Item Weight
- 6.22
- Algae Resistance
- No
- Applicable Standards
- ASTM C1289, Type II, Class 1 International Building Code (IBC) Chapter 26 State of Florida Product Approved California Code of Regulations, Title 24 Approved Miami-Dade County Approved UL Standard 1256, 790, 263 CCMC 13460-L CAN/ULC-S126, CAN/ULC-S101, CAN/ULC-S107 CAN/ULC-S704 Type 2, Class 3 (20 psi) or Type 3, Class 3 (25 psi) Factory Mutual Approved (FM 4450, FM 4470)
About this product
FlintBoard® ISO-T Cold Tapered Polyisocyanurate Roof Insulation is manufactured in a tapered profile to offer the combination of high thermal value plus promotion of proper roof drainage. As with regular FlintBoard ISO Cold, FlintBoard ISO-T Cold features closed-cell polyiso core with integrally laminated heavy, coated glass facers. In multi-layer roof system applications, FlintBoard ISO-T Cold is installed over one layer of FlintBoard ISO in accordance with CertainTeed specifications. FlintBoard ISO-T Cold is offered in a variety of tapered panels, providing average long-term thermal resistance (LTTR) values from 4.2 to 12.9. Higher LTTR values can be achieved with layers of flat FlintBoard ISO. FlintBoard ISO-T Cold is a recommended roof insulation for use in conjunction with CertainTeed Commercial Roofing Systems including Flintlastic® Roof Systems which utilize SBS modified bitumen adhesive as the membrane bonding agent.



