top of page

Thermal Insulation for Buildings & Building Products

What's Important to Consider

There's laboratory R-value and then there is installed R-value over the long-run. Unless your insulation lives in the R-value measurement lab, it's important to consider what can affect R-value of your building product or rigid foam insulation board.

Abstract Panels

Stable R-value

Modern Architecture

Dimensional Accuracy

Countryside Road


We take care for what's important: effectively and cost-efficiently slowing the flow of heat where needed.

OPCORE and OPCORE-G demonstrated 100% retention of R-value over five years per ASTM C1303 / CAN/ULC-S770.  Learn more about this in our Long-Term R-value Technical Bulletin, below and in our library.

Save time, $ and achieve a consistently better installation with our rigid foam available pre-cut per specification to the 16th of an inch.

In addition to being HFC-free, both OPCORE and OPCORE-G rigid foam are fully recyclable at OPCO, Inc. and other locations listed at:

Anchor Prot Pckg top
exterior foundation insulation opcore-g.png


We produce rigid foam boards cut to specified length, width, thickness, and tolerances and custom fabrications, including: cut-outs, profile cuts, glued build-ups, multi-density laminates.

As boards, ready-for-use in buildings

  • ​XPS replacement above and below grade (shown)

  • Roof & Attic

  • Under slab & Perimeter

  • Above Grade Walls

  • Interior & Basement

Cut to shape, for use in building products

  • Hollow Window Profiles

  • Doors

  • Insulated Siding

  • Multi-layer Laminates

  • Insulated Concrete Forms (ICF)

Technical Data

OPCORE TDS 202301.png


Technical Data Sheet

OPCORE-G TDS 202301.png


Technical Data Sheet


OPCORE Rigid Thermal Insulation.png


Recyclable Thermal Insulation

Technical Bulletin - Long Term R-Value LTTR.png

Long Term R-value Technical Bulletin

OPCORE-G R-5 Thermal Insulation for New and Existing Buildings.png


R-5 Thermal Insulation for New and Existing Buildings

OPCORE-G Construction Specification Guide.png

OPCORE-G Specification Guide for Construction



ICC-ES ESR 4522 for OPCORE-G Graphite-Enhanced Thermal Insulation Boards

OPCO UL BRYX.14462 Foamed Plastic.png

UL BRYX.R14462 Foamed Plastic

OPCO UL TGFU.R14462 Roofing Systems.png

UL TGFU.R14462 Roofing Systems

Sphere on Spiral Stairs

Explore other ways to use our
rigid foam materials.

bottom of page