Johns Manville continuous insulation solutions offer optimal performance and efficiency through and through.  Thermal efficiency is created with products that provide exceptional air, water and vapor control which prevent thermal bridging.  Improve project efficiency with JM technical services that help you incorporate JM products seamlessly into your plans, because efficiency is key to the success of every build — and your business.

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Continuous Insulation Products 


Johns Manville CladStone® Water & Fire Block:
JM CladStone is a continuous insulation mineral wool product that is specifically manufactured for superior performance in cavity wall and rain screen applications. JM Cladstone is available in 4 densities, CladStone 45 (4.5pcf), CladStone 60 (6.0 pcf), CladStone 80 (8.0 pcf) and CladStone 110 (11.0 pcf). JM CladStone is part of a NFPA 285 compliant wall system that uses Aluminum Composite Materials (ACM) metal panels. 



AP™ Foil-Faced Polyiso Sheathing: 
AP™ Foil-Faced Polyiso Continuous Insulation Sheathing consists of a uniform closed-cell polyisocyanurate foam core bonded on each side to a foil facer. One side has a reflective foil facer and the other side has a white non-reflective foil facer to suit your building needs. AP™ Foil-Faced foam sheathing can be used as continuous insulation behind most wall systems such as stucco, brick, fiber cement and metal panels.



CI Max® Polyiso Sheathing: 
CI Max® is a high efficiency rigid foam sheathing designed for exposed interior applications. CI Max foam sheathing passed NFPA 286 Corner Burn Test for walls only or ceiling only without joint treatment, meeting both the International Code Council’s Building Code Section 2603 and Residential Code Section R316.  CI Max provides a continuous layer of insulation to reduce thermal bridging and improve energy efficiency. 



JM Corbond® Closed-Cell Spray Polyurethane Foam:
JM Corbond closed-cell spray foam insulation covers gaps and voids, works in hard-to-insulate areas.  Its high yield, superior thermal and moisture performance, and exceptional sprayability and adhesion make it an ideal choice for high-performing energy efficient buildings. JM Corbond closed-cell spray foam can be used as a continuous insulation and is also an all-in-one air barrier, vapor retarder, and water-resistive barrier.


JM All-Purpose Continuous Insulation Wall System

The high-performing JM All-Purpose Continuous Insulation Wall System, featuring AP™ Foil-Faced Polyiso Foam Sheathing Board, can help you save on materials and labor costs while providing greater design flexibility. The product functions as a water-resistive barrier, vapor retarder and air barrier – eliminating the need for separate barrier components. It can also eliminate the need for exterior sheathing such as Gypsum or OSB.



Substitution Request 
Our team will take care of the paperwork to incorporate Johns Manville products into your specs, so the process is smooth and seamless.

AP™ Foil-Faced Commercial Installation JM Continuous Insulation Wall System 
Step-by-step  guide explaining the installation process.

 JM All-Purpose Continuous Insulation Wall System 
View this outline to learn the different components that make up JM’s all-purpose continuous wall system.

JM All-Purpose Continuous Insulation Wall System Components 
This piece highlights the different fasteners, plates and tapes needed to complete JM’s CI wall system.

TechConnect is JM’s team of insulation experts here to make your job easier. With FREE online, on-call and onsite service available wherever you are, the information you need is always nearby. Whether you need compliance answers, consultations. spec recommendations, online trainings, technical product assistance or something else, we have a range of services and solutions to keep your job moving.

JM Continuous Insulation Wall System Specification 
Downloadable specifications outline for the JM Continuous Insulation Wall System Specification, Section 072100 - Foil Faced Rigid Insulation.

Continuous Insulation for Stucco Wall System Outlines
Find out the various wall components that go into a continuous insulation for stucco wall systems
Option One  |  Option Two   |  Option Three

JM CladStone

JM Foam Board/Sheathing

JM Spray Foam 


Continuous Insulation: Roofs to Walls
Learn how a successful continuous insulation system doesn't stop at the walls, it also integrates the requirements of the roofing system.
August 6, 2020
Continuous Insulation
Explore how CI addresses building envelope design challenges and application/product considerations for various wall systems
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JM Continuous Insulation and Building Science
Take a deep dive into continuous insulation system solutions and understanding what makes the perfect wall in all different applications.
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CI - Commercial Building Applications
Better understand the role of Continuous Insulation and the different types of Continuous Insulation Systems for commercial building applications.
March 1, 2019

Building Insulation

How to Select a CladStone™ Mineral Wool Density

Feb. 27, 2020 | JM Editors
Mineral wool has a reputation for being a robust building insulation. It comes in a variety of thicknesses, densities, and forms, making it highly adaptable for a myriad of a...

Mineral Wool: A Solution to Thermal Bridging

Feb. 27, 2020 | Stacy Fitzgerald-Redd
Heat escaping through thermal-bridging in a building envelope presents a huge problem for energy-efficient buildings. How can you improve your insulation systems to prevent t...

Mineral Wool Drives Performance Across the Building Enclosure

Feb. 27, 2020 | Tiffany Coppock
Continuous insulation is an crucial component to providing thermal consistency and supporting improved sustainability. However, continuous insulation offers more than just th...