Johns Manville Polyiso foam sheathing insulation boards provide a continuous layer of insulation to reduce thermal bridging and improve energy efficiency. Polyiso consists of a uniform closed-cell polyisocyanurate foam core and provides one of the highest R-values per inch of any rigid insulation.

Understanding the Updated IECC Codes
May 11, 2022
This webinar will walk through the updates to the 2021 IECC Codes and preview what we might see in 2024.

Cracking the Code: NFPA 285 for Wall Assemblies
July 13, 2021
JM’s Jeff Job dives into the important details behind NFPA 285 testing and discusses products that meet multiple wall assemblies.

Continuous Insulation: Roofs to Walls
August 6, 2020
Learn how a successful continuous insulation system doesn't stop at the walls, it also integrates the requirements of the roofing system.

Cracking the Code: NFPA 285 for Wall Assemblies
June 23, 2020
Learn about the NFPA 285 testing history, process, components, and updates and what it means for future building design.

Continuous Insulation
April 30, 2020
Explore how CI addresses building envelope design challenges and application/product considerations for various wall systems requirements. 

Walls That Work
April 18, 2020
Mitigating the effects of heat, air, and water movement through walls with insulation.

Continuous Insulation and Building Science
August 1, 2019
Take a deep dive into continuous insulation system solutions and understanding what makes the perfect wall in all different applications.

CI - Commercial Building Applications
March 1, 2019
Better understand the role of Continuous Insulation and the different types of Continuous Insulation Systems for commercial building applications.

Polyiso CI Wall Systems: The Perfect Wall
November 7, 2018
Discover how polyiso can be used in CI applications – exterior, interior and below grade