
Insulation & Coverboard

IB Energy Board II & Energy Board III
These sustainable, high-performance insulation products are constructed with thermally efficient polyisocyanurate (polyiso) cores and engineered for long-term R-value retention. Energy Board II and III are available with durable facers that enhance dimensional stability, moisture resistance, and surface strength—making them ideal for direct membrane attachment or use beneath coverboards. By combining high thermal performance with sustainability benefits, these boards contribute to energy-efficient roofing assemblies that support long-term building performance.
A Solution for Any Situation
IB Single-Ply Roof Systems & Insulation Compatibility
IB’s single-ply roofing systems are tested and approved for installation over a wide range of high-performance, rigid insulation boards, coverboards, and recover boards—giving architects, contractors, and building owners maximum flexibility in both design and thermal performance. Whether used in new construction or retrofit applications, IB membranes integrate seamlessly with industry-standard substrates to meet demanding energy and structural requirements.









